./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd --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 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:17:58,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:17:58,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:17:58,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:17:58,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:17:58,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:17:58,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:17:58,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:17:58,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:17:58,498 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:17:58,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:17:58,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:17:58,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:17:58,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:17:58,499 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:17:58,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:17:58,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:17:58,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:17:58,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:17:58,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:17:58,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:17:58,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:17:58,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:17:58,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:17:58,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:17:58,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:17:58,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:17:58,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:17:58,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:17:58,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:17:58,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:17:58,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:17:58,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:17:58,506 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd 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 -> 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 [2024-11-13 13:17:58,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:17:58,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:17:58,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:17:58,876 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:17:58,876 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:17:58,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i Unable to find full path for "g++" [2024-11-13 13:18:01,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:18:01,379 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:18:01,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-11-13 13:18:01,388 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data/fca6ce489/4be15e76d93f44ad9c70ff96b419172d/FLAGa805c6d93 [2024-11-13 13:18:01,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data/fca6ce489/4be15e76d93f44ad9c70ff96b419172d [2024-11-13 13:18:01,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:18:01,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:18:01,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:18:01,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:18:01,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:18:01,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f262652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01, skipping insertion in model container [2024-11-13 13:18:01,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:18:01,579 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-13 13:18:01,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:18:01,644 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:18:01,654 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-13 13:18:01,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:18:01,706 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:18:01,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01 WrapperNode [2024-11-13 13:18:01,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:18:01,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:18:01,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:18:01,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:18:01,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,774 INFO L138 Inliner]: procedures = 29, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 341 [2024-11-13 13:18:01,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:18:01,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:18:01,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:18:01,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:18:01,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,822 INFO L175 MemorySlicer]: Split 86 memory accesses to 2 slices as follows [2, 84]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 13 writes are split as follows [0, 13]. [2024-11-13 13:18:01,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:18:01,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:18:01,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:18:01,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:18:01,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (1/1) ... [2024-11-13 13:18:01,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:18:01,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:01,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:18:01,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:18:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 13:18:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:18:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:18:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:18:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:18:02,086 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:18:02,087 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:18:02,583 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-13 13:18:02,583 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:18:02,594 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:18:02,594 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:18:02,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:02 BoogieIcfgContainer [2024-11-13 13:18:02,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:18:02,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:18:02,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:18:02,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:18:02,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:18:01" (1/3) ... [2024-11-13 13:18:02,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea53a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:18:02, skipping insertion in model container [2024-11-13 13:18:02,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:01" (2/3) ... [2024-11-13 13:18:02,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea53a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:18:02, skipping insertion in model container [2024-11-13 13:18:02,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:02" (3/3) ... [2024-11-13 13:18:02,607 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-9.i [2024-11-13 13:18:02,623 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:18:02,625 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-9.i that has 2 procedures, 76 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:18:02,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:18:02,715 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;@205b0fe3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:18:02,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:18:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:18:02,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:02,730 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:02,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:02,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:02,737 INFO L85 PathProgramCache]: Analyzing trace with hash -283180228, now seen corresponding path program 1 times [2024-11-13 13:18:02,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:02,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062748588] [2024-11-13 13:18:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:02,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:03,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:03,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062748588] [2024-11-13 13:18:03,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062748588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:03,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:03,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:18:03,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378843325] [2024-11-13 13:18:03,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:03,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:18:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:03,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:18:03,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:18:03,140 INFO L87 Difference]: Start difference. First operand has 76 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:03,161 INFO L93 Difference]: Finished difference Result 145 states and 213 transitions. [2024-11-13 13:18:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:18:03,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 13:18:03,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:03,169 INFO L225 Difference]: With dead ends: 145 [2024-11-13 13:18:03,169 INFO L226 Difference]: Without dead ends: 72 [2024-11-13 13:18:03,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:18:03,175 INFO L432 NwaCegarLoop]: 100 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, 100 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 [2024-11-13 13:18:03,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:03,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-13 13:18:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-13 13:18:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 65 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2024-11-13 13:18:03,212 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 62 [2024-11-13 13:18:03,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:03,212 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2024-11-13 13:18:03,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:03,212 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2024-11-13 13:18:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:18:03,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:03,215 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:03,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:18:03,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:03,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:03,216 INFO L85 PathProgramCache]: Analyzing trace with hash 340751618, now seen corresponding path program 1 times [2024-11-13 13:18:03,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:03,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472309192] [2024-11-13 13:18:03,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:03,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:03,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:03,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472309192] [2024-11-13 13:18:03,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472309192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:03,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:03,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164765795] [2024-11-13 13:18:03,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:03,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:18:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:03,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:18:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:03,549 INFO L87 Difference]: Start difference. First operand 72 states and 100 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:03,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:03,593 INFO L93 Difference]: Finished difference Result 144 states and 201 transitions. [2024-11-13 13:18:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:18:03,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-13 13:18:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:03,595 INFO L225 Difference]: With dead ends: 144 [2024-11-13 13:18:03,595 INFO L226 Difference]: Without dead ends: 75 [2024-11-13 13:18:03,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:03,597 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:03,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 280 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:03,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-13 13:18:03,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-13 13:18:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:03,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-13 13:18:03,606 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 62 [2024-11-13 13:18:03,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:03,607 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-13 13:18:03,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:03,608 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-13 13:18:03,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:18:03,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:03,609 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:03,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:18:03,610 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:03,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:03,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1041816196, now seen corresponding path program 1 times [2024-11-13 13:18:03,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:03,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103204606] [2024-11-13 13:18:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:03,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:04,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:04,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103204606] [2024-11-13 13:18:04,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103204606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:04,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:04,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:18:04,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272124387] [2024-11-13 13:18:04,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:04,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:04,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:04,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:04,302 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:04,788 INFO L93 Difference]: Finished difference Result 263 states and 366 transitions. [2024-11-13 13:18:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:04,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 13:18:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:04,793 INFO L225 Difference]: With dead ends: 263 [2024-11-13 13:18:04,793 INFO L226 Difference]: Without dead ends: 192 [2024-11-13 13:18:04,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:18:04,795 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 223 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:04,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 379 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:18:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-13 13:18:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 141. [2024-11-13 13:18:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 128 states have (on average 1.375) internal successors, (176), 128 states have internal predecessors, (176), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 196 transitions. [2024-11-13 13:18:04,831 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 196 transitions. Word has length 62 [2024-11-13 13:18:04,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:04,831 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 196 transitions. [2024-11-13 13:18:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 196 transitions. [2024-11-13 13:18:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 13:18:04,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:04,836 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:04,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:18:04,836 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:04,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1970785050, now seen corresponding path program 1 times [2024-11-13 13:18:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:04,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665269530] [2024-11-13 13:18:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:04,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:04,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:05,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665269530] [2024-11-13 13:18:05,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665269530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:05,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:05,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:05,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850663762] [2024-11-13 13:18:05,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:05,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:18:05,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:05,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:18:05,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:05,024 INFO L87 Difference]: Start difference. First operand 141 states and 196 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:05,064 INFO L93 Difference]: Finished difference Result 285 states and 397 transitions. [2024-11-13 13:18:05,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:18:05,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2024-11-13 13:18:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:05,067 INFO L225 Difference]: With dead ends: 285 [2024-11-13 13:18:05,067 INFO L226 Difference]: Without dead ends: 147 [2024-11-13 13:18:05,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:05,068 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:05,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:05,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-13 13:18:05,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2024-11-13 13:18:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 132 states have (on average 1.3636363636363635) internal successors, (180), 132 states have internal predecessors, (180), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:05,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 200 transitions. [2024-11-13 13:18:05,090 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 200 transitions. Word has length 63 [2024-11-13 13:18:05,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:05,091 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 200 transitions. [2024-11-13 13:18:05,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:05,091 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 200 transitions. [2024-11-13 13:18:05,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 13:18:05,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:05,093 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:05,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:18:05,093 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:05,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:05,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1290726680, now seen corresponding path program 1 times [2024-11-13 13:18:05,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:05,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95288837] [2024-11-13 13:18:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:05,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:05,230 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:05,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:05,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95288837] [2024-11-13 13:18:05,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95288837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:05,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:05,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134463561] [2024-11-13 13:18:05,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:05,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:18:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:05,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:18:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:05,239 INFO L87 Difference]: Start difference. First operand 145 states and 200 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:05,276 INFO L93 Difference]: Finished difference Result 293 states and 405 transitions. [2024-11-13 13:18:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:18:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2024-11-13 13:18:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:05,278 INFO L225 Difference]: With dead ends: 293 [2024-11-13 13:18:05,281 INFO L226 Difference]: Without dead ends: 151 [2024-11-13 13:18:05,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:05,282 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:05,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 282 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:05,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-13 13:18:05,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2024-11-13 13:18:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 136 states have (on average 1.3529411764705883) internal successors, (184), 136 states have internal predecessors, (184), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 204 transitions. [2024-11-13 13:18:05,305 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 204 transitions. Word has length 63 [2024-11-13 13:18:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:05,306 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 204 transitions. [2024-11-13 13:18:05,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 204 transitions. [2024-11-13 13:18:05,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 13:18:05,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:05,307 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:05,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:18:05,308 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:05,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:05,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1288879638, now seen corresponding path program 1 times [2024-11-13 13:18:05,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:05,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8491999] [2024-11-13 13:18:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:05,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:06,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:06,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8491999] [2024-11-13 13:18:06,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8491999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:06,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:06,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:18:06,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542066012] [2024-11-13 13:18:06,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:06,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:18:06,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:18:06,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:18:06,579 INFO L87 Difference]: Start difference. First operand 149 states and 204 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:06,885 INFO L93 Difference]: Finished difference Result 301 states and 413 transitions. [2024-11-13 13:18:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:18:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-11-13 13:18:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:06,888 INFO L225 Difference]: With dead ends: 301 [2024-11-13 13:18:06,888 INFO L226 Difference]: Without dead ends: 155 [2024-11-13 13:18:06,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:18:06,889 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:06,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 304 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:18:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-13 13:18:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2024-11-13 13:18:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 140 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 208 transitions. [2024-11-13 13:18:06,904 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 208 transitions. Word has length 63 [2024-11-13 13:18:06,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:06,905 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 208 transitions. [2024-11-13 13:18:06,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 208 transitions. [2024-11-13 13:18:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:18:06,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:06,906 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:06,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:18:06,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:06,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -901986062, now seen corresponding path program 1 times [2024-11-13 13:18:06,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227614616] [2024-11-13 13:18:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,304 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:07,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:07,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227614616] [2024-11-13 13:18:07,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227614616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:07,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:07,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:18:07,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206005653] [2024-11-13 13:18:07,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:07,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:07,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:07,308 INFO L87 Difference]: Start difference. First operand 153 states and 208 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:07,595 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2024-11-13 13:18:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:07,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-13 13:18:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:07,597 INFO L225 Difference]: With dead ends: 350 [2024-11-13 13:18:07,597 INFO L226 Difference]: Without dead ends: 200 [2024-11-13 13:18:07,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:07,601 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 188 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:07,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 258 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:18:07,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-13 13:18:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 143. [2024-11-13 13:18:07,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.3307692307692307) internal successors, (173), 130 states have internal predecessors, (173), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:07,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 193 transitions. [2024-11-13 13:18:07,613 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 193 transitions. Word has length 67 [2024-11-13 13:18:07,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:07,614 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 193 transitions. [2024-11-13 13:18:07,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 193 transitions. [2024-11-13 13:18:07,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:18:07,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:07,615 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:07,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:18:07,615 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:07,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:07,616 INFO L85 PathProgramCache]: Analyzing trace with hash 294187038, now seen corresponding path program 1 times [2024-11-13 13:18:07,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:07,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515515137] [2024-11-13 13:18:07,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:07,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:07,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:08,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:08,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:08,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:08,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:08,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515515137] [2024-11-13 13:18:08,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515515137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:08,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:08,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:18:08,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629272545] [2024-11-13 13:18:08,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:08,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:08,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:08,020 INFO L87 Difference]: Start difference. First operand 143 states and 193 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:08,315 INFO L93 Difference]: Finished difference Result 340 states and 459 transitions. [2024-11-13 13:18:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:08,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-11-13 13:18:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:08,317 INFO L225 Difference]: With dead ends: 340 [2024-11-13 13:18:08,317 INFO L226 Difference]: Without dead ends: 200 [2024-11-13 13:18:08,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:18:08,318 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 382 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:08,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 256 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:18:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-13 13:18:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 143. [2024-11-13 13:18:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.323076923076923) internal successors, (172), 130 states have internal predecessors, (172), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 192 transitions. [2024-11-13 13:18:08,334 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 192 transitions. Word has length 67 [2024-11-13 13:18:08,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:08,335 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 192 transitions. [2024-11-13 13:18:08,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 192 transitions. [2024-11-13 13:18:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 13:18:08,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:08,337 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:08,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:18:08,340 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:08,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash -302931579, now seen corresponding path program 1 times [2024-11-13 13:18:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:08,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277906113] [2024-11-13 13:18:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:08,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:18:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:18:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:18:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-13 13:18:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:18:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:09,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:18:09,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277906113] [2024-11-13 13:18:09,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277906113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:09,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:09,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:18:09,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681288530] [2024-11-13 13:18:09,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:09,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:18:09,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:09,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:18:09,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:18:09,363 INFO L87 Difference]: Start difference. First operand 143 states and 192 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:10,113 INFO L93 Difference]: Finished difference Result 432 states and 580 transitions. [2024-11-13 13:18:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:18:10,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2024-11-13 13:18:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:10,115 INFO L225 Difference]: With dead ends: 432 [2024-11-13 13:18:10,115 INFO L226 Difference]: Without dead ends: 292 [2024-11-13 13:18:10,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:18:10,116 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 230 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:10,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 400 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 13:18:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-13 13:18:10,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 209. [2024-11-13 13:18:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 190 states have (on average 1.3105263157894738) internal successors, (249), 190 states have internal predecessors, (249), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 13:18:10,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 279 transitions. [2024-11-13 13:18:10,133 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 279 transitions. Word has length 68 [2024-11-13 13:18:10,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:10,134 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 279 transitions. [2024-11-13 13:18:10,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:10,134 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 279 transitions. [2024-11-13 13:18:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 13:18:10,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:10,135 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:10,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:18:10,135 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:10,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:10,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1078191369, now seen corresponding path program 1 times [2024-11-13 13:18:10,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:10,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449903502] [2024-11-13 13:18:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:10,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 13:18:10,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852531680] [2024-11-13 13:18:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:10,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:18:10,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:10,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:18:10,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:18:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:18:10,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:18:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:18:10,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:18:10,577 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:18:10,578 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:18:10,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:18:10,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:18:10,783 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:10,841 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:18:10,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:18:10 BoogieIcfgContainer [2024-11-13 13:18:10,845 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:18:10,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:18:10,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:18:10,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:18:10,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:02" (3/4) ... [2024-11-13 13:18:10,852 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:18:10,853 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:18:10,854 INFO L158 Benchmark]: Toolchain (without parser) took 9447.30ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 92.5MB in the beginning and 58.5MB in the end (delta: 34.0MB). Peak memory consumption was 100.6MB. Max. memory is 16.1GB. [2024-11-13 13:18:10,855 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:18:10,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.46ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 78.0MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:18:10,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.59ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:18:10,857 INFO L158 Benchmark]: Boogie Preprocessor took 97.49ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 71.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:18:10,858 INFO L158 Benchmark]: RCFGBuilder took 717.57ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 47.7MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:18:10,858 INFO L158 Benchmark]: TraceAbstraction took 8246.89ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 47.3MB in the beginning and 58.5MB in the end (delta: -11.2MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-11-13 13:18:10,858 INFO L158 Benchmark]: Witness Printer took 7.81ms. Allocated memory is still 184.5MB. Free memory was 58.5MB in the beginning and 58.5MB in the end (delta: 36.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:18:10,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.46ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 78.0MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.59ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 97.49ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 71.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 717.57ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 47.7MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8246.89ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 47.3MB in the beginning and 58.5MB in the end (delta: -11.2MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Witness Printer took 7.81ms. Allocated memory is still 184.5MB. Free memory was 58.5MB in the beginning and 58.5MB in the end (delta: 36.2kB). 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 shiftLeft at line 59, overapproximation of shiftLeft at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 86. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L45] unsigned char last_1_WrapperStruct0_var_1_1 = 10; [L46] double last_1_WrapperStruct0_var_1_10 = 9.2; [L47] signed short int last_1_WrapperStruct0_var_1_12 = 1; [L48] signed long int last_1_WrapperStruct0_var_1_14 = -16; VAL [WrapperStruct0={4:0}, isInitial=0, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L89] EXPR WrapperStruct0.var_1_1 [L89] last_1_WrapperStruct0_var_1_1 = WrapperStruct0.var_1_1 [L90] EXPR WrapperStruct0.var_1_10 [L90] last_1_WrapperStruct0_var_1_10 = WrapperStruct0.var_1_10 [L91] EXPR WrapperStruct0.var_1_12 [L91] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L92] EXPR WrapperStruct0.var_1_14 [L92] last_1_WrapperStruct0_var_1_14 = WrapperStruct0.var_1_14 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L79] WrapperStruct0.var_1_3 = __VERIFIER_nondet_uchar() [L80] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L80] CALL assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L80] RET assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] CALL assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] RET assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L82] WrapperStruct0.var_1_7 = __VERIFIER_nondet_uchar() [L83] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L83] CALL assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L83] RET assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] CALL assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] RET assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L85] WrapperStruct0.var_1_11 = __VERIFIER_nondet_double() [L86] EXPR WrapperStruct0.var_1_11 [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F [L86] EXPR WrapperStruct0.var_1_11 [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] CALL assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] RET assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L103] RET updateVariables() [L104] CALL step() [L52] unsigned char stepLocal_0 = last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10; VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10, stepLocal_0=0] [L53] COND FALSE !(((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || stepLocal_0) [L56] WrapperStruct0.var_1_12 = last_1_WrapperStruct0_var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L58] EXPR WrapperStruct0.var_1_12 [L58] WrapperStruct0.var_1_14 = WrapperStruct0.var_1_12 [L59] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] EXPR 10 << WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] EXPR WrapperStruct0.var_1_3 [L59] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] COND FALSE !((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) [L62] WrapperStruct0.var_1_9 = 64 [L63] EXPR WrapperStruct0.var_1_11 [L63] WrapperStruct0.var_1_10 = WrapperStruct0.var_1_11 [L64] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L64] COND TRUE WrapperStruct0.var_1_12 <= 16 [L65] EXPR WrapperStruct0.var_1_3 [L65] WrapperStruct0.var_1_1 = WrapperStruct0.var_1_3 [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) [L95] EXPR WrapperStruct0.var_1_1 [L95] EXPR WrapperStruct0.var_1_3 [L95] EXPR (WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) [L95] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR 10 << WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR WrapperStruct0.var_1_3 [L95] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1 [L95] EXPR WrapperStruct0.var_1_8 [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_14 [L95] EXPR ((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95-L96] return ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L19] reach_error() VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1075 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1074 mSDsluCounter, 2540 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1828 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1106 IncrementalHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 712 mSDtfsCounter, 1106 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=9, InterpolantAutomatonStates: 47, 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, 9 MinimizatonAttempts, 255 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 713 NumberOfCodeBlocks, 713 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 568 ConstructedInterpolants, 0 QuantifiedInterpolants, 1699 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 360/360 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:18:10,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd --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 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:18:13,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:18:13,653 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 13:18:13,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:18:13,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:18:13,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:18:13,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:18:13,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:18:13,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:18:13,704 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:18:13,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:18:13,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:18:13,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:18:13,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:18:13,704 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:18:13,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:18:13,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:18:13,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:18:13,706 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:18:13,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:18:13,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:18:13,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:18:13,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:18:13,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:18:13,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:18:13,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:18:13,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:18:13,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:18:13,708 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd 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 -> 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 [2024-11-13 13:18:14,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:18:14,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:18:14,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:18:14,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:18:14,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:18:14,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i Unable to find full path for "g++" [2024-11-13 13:18:16,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:18:16,305 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:18:16,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-11-13 13:18:16,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data/d995631e6/883541139b34443da3f6245ec4ada300/FLAG50f435517 [2024-11-13 13:18:16,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/data/d995631e6/883541139b34443da3f6245ec4ada300 [2024-11-13 13:18:16,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:18:16,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:18:16,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:18:16,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:18:16,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:18:16,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71766b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16, skipping insertion in model container [2024-11-13 13:18:16,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:18:16,547 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-13 13:18:16,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:18:16,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:18:16,657 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_e18d661d-8a34-4031-b6fb-3b264a5caca1/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-11-13 13:18:16,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:18:16,757 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:18:16,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16 WrapperNode [2024-11-13 13:18:16,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:18:16,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:18:16,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:18:16,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:18:16,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,845 INFO L138 Inliner]: procedures = 36, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 327 [2024-11-13 13:18:16,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:18:16,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:18:16,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:18:16,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:18:16,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,881 INFO L175 MemorySlicer]: Split 86 memory accesses to 2 slices as follows [2, 84]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 13 writes are split as follows [0, 13]. [2024-11-13 13:18:16,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:18:16,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:18:16,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:18:16,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:18:16,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (1/1) ... [2024-11-13 13:18:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:18:16,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:16,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:18:16,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:18:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 13:18:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:18:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:18:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-13 13:18:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-13 13:18:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 13:18:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 13:18:17,165 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:18:17,167 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:18:17,982 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-13 13:18:17,982 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:18:18,000 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:18:18,000 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:18:18,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:18 BoogieIcfgContainer [2024-11-13 13:18:18,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:18:18,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:18:18,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:18:18,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:18:18,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:18:16" (1/3) ... [2024-11-13 13:18:18,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a12ac37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:18:18, skipping insertion in model container [2024-11-13 13:18:18,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:18:16" (2/3) ... [2024-11-13 13:18:18,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a12ac37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:18:18, skipping insertion in model container [2024-11-13 13:18:18,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:18:18" (3/3) ... [2024-11-13 13:18:18,011 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-9.i [2024-11-13 13:18:18,028 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:18:18,029 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-9.i that has 2 procedures, 70 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:18:18,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:18:18,105 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;@2c5456fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:18:18,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:18:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:18:18,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:18,121 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:18,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:18,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:18,127 INFO L85 PathProgramCache]: Analyzing trace with hash 800847055, now seen corresponding path program 1 times [2024-11-13 13:18:18,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:18,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284948231] [2024-11-13 13:18:18,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:18,143 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 [2024-11-13 13:18:18,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:18,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:18,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:18,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:18:18,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 13:18:18,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:18,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284948231] [2024-11-13 13:18:18,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284948231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:18,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:18,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:18:18,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683936640] [2024-11-13 13:18:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:18,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:18:18,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:18:18,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:18:18,612 INFO L87 Difference]: Start difference. First operand has 70 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:18,653 INFO L93 Difference]: Finished difference Result 133 states and 197 transitions. [2024-11-13 13:18:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:18:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-13 13:18:18,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:18,662 INFO L225 Difference]: With dead ends: 133 [2024-11-13 13:18:18,662 INFO L226 Difference]: Without dead ends: 66 [2024-11-13 13:18:18,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:18:18,668 INFO L432 NwaCegarLoop]: 92 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, 92 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 [2024-11-13 13:18:18,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:18,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-13 13:18:18,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-13 13:18:18,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:18,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2024-11-13 13:18:18,711 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 60 [2024-11-13 13:18:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:18,711 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2024-11-13 13:18:18,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2024-11-13 13:18:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:18:18,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:18,714 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:18,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:18,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:18:18,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:18,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash 533340181, now seen corresponding path program 1 times [2024-11-13 13:18:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:18,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429225830] [2024-11-13 13:18:18,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:18,920 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 [2024-11-13 13:18:18,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:18,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:18,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:19,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:18:19,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:19,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:19,243 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429225830] [2024-11-13 13:18:19,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429225830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:19,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:18:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381333424] [2024-11-13 13:18:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:19,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:18:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:19,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:18:19,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:19,247 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:19,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:19,293 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2024-11-13 13:18:19,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:18:19,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-13 13:18:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:19,297 INFO L225 Difference]: With dead ends: 132 [2024-11-13 13:18:19,297 INFO L226 Difference]: Without dead ends: 69 [2024-11-13 13:18:19,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:18:19,298 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:19,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 256 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:19,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-13 13:18:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2024-11-13 13:18:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 61 states have internal predecessors, (84), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2024-11-13 13:18:19,314 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 60 [2024-11-13 13:18:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:19,315 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2024-11-13 13:18:19,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2024-11-13 13:18:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:18:19,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:19,316 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:19,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-13 13:18:19,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:18:19,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:19,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1234404759, now seen corresponding path program 1 times [2024-11-13 13:18:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025874516] [2024-11-13 13:18:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:19,523 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 [2024-11-13 13:18:19,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:19,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:19,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 13:18:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:19,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:18:19,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:19,843 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:19,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:19,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:19,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025874516] [2024-11-13 13:18:19,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025874516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:19,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:19,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:18:19,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823951617] [2024-11-13 13:18:19,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:19,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:18:19,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:19,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:18:19,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:19,845 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:19,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:19,912 INFO L93 Difference]: Finished difference Result 136 states and 189 transitions. [2024-11-13 13:18:19,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:18:19,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-13 13:18:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:19,914 INFO L225 Difference]: With dead ends: 136 [2024-11-13 13:18:19,914 INFO L226 Difference]: Without dead ends: 71 [2024-11-13 13:18:19,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:18:19,915 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 1 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:19,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 333 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:18:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-13 13:18:19,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-13 13:18:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2024-11-13 13:18:19,924 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 60 [2024-11-13 13:18:19,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:19,924 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2024-11-13 13:18:19,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:19,925 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2024-11-13 13:18:19,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:18:19,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:19,930 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:19,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 13:18:20,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:18:20,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:20,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1914463129, now seen corresponding path program 1 times [2024-11-13 13:18:20,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:20,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514837466] [2024-11-13 13:18:20,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:20,134 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 [2024-11-13 13:18:20,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:20,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:20,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:20,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:18:20,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:20,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:20,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:20,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514837466] [2024-11-13 13:18:20,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514837466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:20,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:20,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:18:20,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046970456] [2024-11-13 13:18:20,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:20,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:20,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:20,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:20,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:20,441 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:20,526 INFO L93 Difference]: Finished difference Result 142 states and 196 transitions. [2024-11-13 13:18:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:18:20,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-13 13:18:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:20,527 INFO L225 Difference]: With dead ends: 142 [2024-11-13 13:18:20,528 INFO L226 Difference]: Without dead ends: 75 [2024-11-13 13:18:20,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:18:20,529 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:20,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 479 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:18:20,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-13 13:18:20,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-13 13:18:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 67 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2024-11-13 13:18:20,535 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 60 [2024-11-13 13:18:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:20,536 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2024-11-13 13:18:20,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2024-11-13 13:18:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:18:20,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:20,537 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:20,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:20,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:18:20,738 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:20,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1916310171, now seen corresponding path program 1 times [2024-11-13 13:18:20,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:20,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541351433] [2024-11-13 13:18:20,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:20,740 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 [2024-11-13 13:18:20,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:20,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:20,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:21,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:18:21,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:21,118 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 [2024-11-13 13:18:21,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:18:21,145 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 30 treesize of output 1 [2024-11-13 13:18:21,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:18:21,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:18:21,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:21,184 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 31 treesize of output 34 [2024-11-13 13:18:21,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:21,238 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 64 treesize of output 47 [2024-11-13 13:18:24,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:24,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 68 [2024-11-13 13:18:24,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:24,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 43 [2024-11-13 13:18:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:18:24,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:24,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:24,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541351433] [2024-11-13 13:18:24,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541351433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:24,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:24,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:18:24,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54436836] [2024-11-13 13:18:24,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:24,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:18:24,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:24,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:18:24,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2024-11-13 13:18:24,353 INFO L87 Difference]: Start difference. First operand 74 states and 100 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:28,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:18:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:29,990 INFO L93 Difference]: Finished difference Result 216 states and 294 transitions. [2024-11-13 13:18:29,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:18:29,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-13 13:18:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:29,992 INFO L225 Difference]: With dead ends: 216 [2024-11-13 13:18:29,992 INFO L226 Difference]: Without dead ends: 145 [2024-11-13 13:18:29,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-11-13 13:18:29,993 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 121 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:29,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 390 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-11-13 13:18:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-13 13:18:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 84. [2024-11-13 13:18:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 13:18:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 115 transitions. [2024-11-13 13:18:30,002 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 115 transitions. Word has length 60 [2024-11-13 13:18:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:30,003 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 115 transitions. [2024-11-13 13:18:30,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:18:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 115 transitions. [2024-11-13 13:18:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 13:18:30,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:30,004 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:30,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:30,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:18:30,208 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:30,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:30,209 INFO L85 PathProgramCache]: Analyzing trace with hash 227366429, now seen corresponding path program 1 times [2024-11-13 13:18:30,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:30,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115444872] [2024-11-13 13:18:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:30,210 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 [2024-11-13 13:18:30,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:30,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:30,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:30,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 13:18:30,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:30,528 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 17 [2024-11-13 13:18:30,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2024-11-13 13:18:30,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:18:30,655 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 20 treesize of output 21 [2024-11-13 13:18:38,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:38,191 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 37 treesize of output 39 [2024-11-13 13:18:45,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2024-11-13 13:18:46,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:46,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 97 [2024-11-13 13:18:46,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:46,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 114 [2024-11-13 13:18:46,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:46,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 71 [2024-11-13 13:18:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:18:46,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:18:46,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:46,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115444872] [2024-11-13 13:18:46,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115444872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:18:46,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:18:46,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:18:46,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141071514] [2024-11-13 13:18:46,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:18:46,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:18:46,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:18:46,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=114, Unknown=4, NotChecked=0, Total=156 [2024-11-13 13:18:46,924 INFO L87 Difference]: Start difference. First operand 84 states and 115 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:50,444 INFO L93 Difference]: Finished difference Result 343 states and 470 transitions. [2024-11-13 13:18:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:18:50,445 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-13 13:18:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:50,447 INFO L225 Difference]: With dead ends: 343 [2024-11-13 13:18:50,447 INFO L226 Difference]: Without dead ends: 262 [2024-11-13 13:18:50,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=117, Invalid=259, Unknown=4, NotChecked=0, Total=380 [2024-11-13 13:18:50,449 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 571 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:50,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 13:18:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-13 13:18:50,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 153. [2024-11-13 13:18:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 140 states have internal predecessors, (190), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 13:18:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 210 transitions. [2024-11-13 13:18:50,490 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 210 transitions. Word has length 60 [2024-11-13 13:18:50,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:50,490 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 210 transitions. [2024-11-13 13:18:50,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:50,490 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 210 transitions. [2024-11-13 13:18:50,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:18:50,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:50,491 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:18:50,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:50,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:18:50,696 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:18:50,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1239458734, now seen corresponding path program 1 times [2024-11-13 13:18:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:18:50,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219904363] [2024-11-13 13:18:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:50,698 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 [2024-11-13 13:18:50,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:18:50,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:18:50,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:18:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:51,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 13:18:51,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:51,127 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 [2024-11-13 13:18:51,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:51,545 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 132 treesize of output 59 [2024-11-13 13:18:51,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:51,571 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 132 treesize of output 59 [2024-11-13 13:18:51,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:51,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 92 [2024-11-13 13:18:51,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:51,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 223 treesize of output 146 [2024-11-13 13:18:51,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:51,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 242 treesize of output 155 [2024-11-13 13:18:52,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:52,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 432 treesize of output 144 [2024-11-13 13:18:52,890 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:18:52,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:18:53,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:18:53,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219904363] [2024-11-13 13:18:53,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219904363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:18:53,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542771941] [2024-11-13 13:18:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:53,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:18:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:18:53,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:18:53,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:18:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:18:54,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 13:18:54,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:18:54,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:54,418 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 132 treesize of output 59 [2024-11-13 13:18:54,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:54,445 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 132 treesize of output 59 [2024-11-13 13:18:54,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:54,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 92 [2024-11-13 13:18:54,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:54,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 228 treesize of output 136 [2024-11-13 13:18:54,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:54,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 232 treesize of output 142 [2024-11-13 13:18:55,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:18:55,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 422 treesize of output 140 [2024-11-13 13:18:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:18:55,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:18:55,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542771941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:18:55,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:18:55,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2024-11-13 13:18:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238877873] [2024-11-13 13:18:55,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:18:55,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:18:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:18:55,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:18:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:18:55,634 INFO L87 Difference]: Start difference. First operand 153 states and 210 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:18:59,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:19:01,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:01,545 INFO L93 Difference]: Finished difference Result 555 states and 756 transitions. [2024-11-13 13:19:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:19:01,546 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 13:19:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:01,549 INFO L225 Difference]: With dead ends: 555 [2024-11-13 13:19:01,549 INFO L226 Difference]: Without dead ends: 405 [2024-11-13 13:19:01,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:19:01,552 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 290 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:01,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 433 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 13:19:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-13 13:19:01,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 397. [2024-11-13 13:19:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 362 states have (on average 1.339779005524862) internal successors, (485), 366 states have internal predecessors, (485), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 13:19:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 541 transitions. [2024-11-13 13:19:01,596 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 541 transitions. Word has length 62 [2024-11-13 13:19:01,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:01,597 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 541 transitions. [2024-11-13 13:19:01,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 541 transitions. [2024-11-13 13:19:01,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:01,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:01,599 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:01,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 13:19:01,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:02,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:02,000 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:02,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:02,001 INFO L85 PathProgramCache]: Analyzing trace with hash -559400364, now seen corresponding path program 1 times [2024-11-13 13:19:02,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:02,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213312737] [2024-11-13 13:19:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:02,001 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 [2024-11-13 13:19:02,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:02,003 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:02,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:02,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:19:02,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:02,253 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 31 treesize of output 21 [2024-11-13 13:19:02,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:02,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 27 [2024-11-13 13:19:02,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:02,370 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 50 treesize of output 26 [2024-11-13 13:19:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:02,395 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:02,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:02,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213312737] [2024-11-13 13:19:02,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213312737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:02,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:02,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:19:02,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982153213] [2024-11-13 13:19:02,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:02,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:19:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:02,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:19:02,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:02,397 INFO L87 Difference]: Start difference. First operand 397 states and 541 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:03,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:03,091 INFO L93 Difference]: Finished difference Result 843 states and 1147 transitions. [2024-11-13 13:19:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:03,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-13 13:19:03,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:03,099 INFO L225 Difference]: With dead ends: 843 [2024-11-13 13:19:03,099 INFO L226 Difference]: Without dead ends: 449 [2024-11-13 13:19:03,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:19:03,100 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 71 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:03,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 274 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 13:19:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-13 13:19:03,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 424. [2024-11-13 13:19:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 381 states have (on average 1.3175853018372703) internal successors, (502), 387 states have internal predecessors, (502), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 28 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-13 13:19:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 570 transitions. [2024-11-13 13:19:03,158 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 570 transitions. Word has length 62 [2024-11-13 13:19:03,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:03,158 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 570 transitions. [2024-11-13 13:19:03,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:03,158 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 570 transitions. [2024-11-13 13:19:03,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:03,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:03,160 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:03,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-13 13:19:03,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:03,361 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:03,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:03,361 INFO L85 PathProgramCache]: Analyzing trace with hash 141664214, now seen corresponding path program 1 times [2024-11-13 13:19:03,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:03,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270752190] [2024-11-13 13:19:03,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:03,362 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 [2024-11-13 13:19:03,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:03,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:03,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:03,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 13:19:03,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:03,679 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 [2024-11-13 13:19:03,778 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 16 treesize of output 12 [2024-11-13 13:19:03,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-13 13:19:03,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:03,823 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 54 treesize of output 44 [2024-11-13 13:19:03,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:03,882 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 73 treesize of output 80 [2024-11-13 13:19:03,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:03,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 87 [2024-11-13 13:19:04,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:04,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 137 treesize of output 65 [2024-11-13 13:19:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:04,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:04,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:04,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270752190] [2024-11-13 13:19:04,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270752190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:04,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:04,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:19:04,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680509599] [2024-11-13 13:19:04,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:04,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:19:04,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:04,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:19:04,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:19:04,291 INFO L87 Difference]: Start difference. First operand 424 states and 570 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:06,894 INFO L93 Difference]: Finished difference Result 1149 states and 1548 transitions. [2024-11-13 13:19:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:19:06,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-13 13:19:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:06,900 INFO L225 Difference]: With dead ends: 1149 [2024-11-13 13:19:06,901 INFO L226 Difference]: Without dead ends: 755 [2024-11-13 13:19:06,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:19:06,903 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 392 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:06,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 575 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:19:06,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-13 13:19:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 573. [2024-11-13 13:19:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 518 states have (on average 1.305019305019305) internal successors, (676), 525 states have internal predecessors, (676), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 13:19:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 764 transitions. [2024-11-13 13:19:06,984 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 764 transitions. Word has length 62 [2024-11-13 13:19:06,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:06,984 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 764 transitions. [2024-11-13 13:19:06,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:06,985 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 764 transitions. [2024-11-13 13:19:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:06,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:06,987 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:06,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:07,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:07,187 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:07,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash -816756908, now seen corresponding path program 1 times [2024-11-13 13:19:07,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421179025] [2024-11-13 13:19:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:07,188 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 [2024-11-13 13:19:07,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:07,191 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:07,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:07,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 13:19:07,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:07,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:07,534 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 45 treesize of output 41 [2024-11-13 13:19:07,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:07,809 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 55 treesize of output 54 [2024-11-13 13:19:08,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:08,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 73 [2024-11-13 13:19:12,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:12,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 82 [2024-11-13 13:19:16,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:16,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 92 [2024-11-13 13:19:17,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 108 [2024-11-13 13:19:17,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:17,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 116 [2024-11-13 13:19:17,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:17,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 71 [2024-11-13 13:19:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 13:19:17,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:17,821 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421179025] [2024-11-13 13:19:17,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421179025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:17,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:17,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:19:17,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739174122] [2024-11-13 13:19:17,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:17,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:19:17,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:17,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:19:17,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2024-11-13 13:19:17,823 INFO L87 Difference]: Start difference. First operand 573 states and 764 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 13:19:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:20,865 INFO L93 Difference]: Finished difference Result 1130 states and 1505 transitions. [2024-11-13 13:19:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:19:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 62 [2024-11-13 13:19:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:20,870 INFO L225 Difference]: With dead ends: 1130 [2024-11-13 13:19:20,870 INFO L226 Difference]: Without dead ends: 587 [2024-11-13 13:19:20,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=118, Invalid=260, Unknown=2, NotChecked=0, Total=380 [2024-11-13 13:19:20,872 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 296 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:20,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 564 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:19:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-13 13:19:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 561. [2024-11-13 13:19:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 506 states have (on average 1.2924901185770752) internal successors, (654), 513 states have internal predecessors, (654), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 13:19:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 742 transitions. [2024-11-13 13:19:20,936 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 742 transitions. Word has length 62 [2024-11-13 13:19:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:20,939 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 742 transitions. [2024-11-13 13:19:20,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 13:19:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 742 transitions. [2024-11-13 13:19:20,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:20,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:20,941 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:20,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:21,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:21,141 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:21,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash 564366040, now seen corresponding path program 1 times [2024-11-13 13:19:21,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:21,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429489010] [2024-11-13 13:19:21,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:21,142 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 [2024-11-13 13:19:21,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:21,144 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:21,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:21,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 13:19:21,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:21,414 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 35 treesize of output 28 [2024-11-13 13:19:21,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:21,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-11-13 13:19:21,744 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:21,744 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 56 treesize of output 41 [2024-11-13 13:19:25,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:25,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 43 [2024-11-13 13:19:29,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2024-11-13 13:19:29,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:29,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 81 [2024-11-13 13:19:29,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:29,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 84 [2024-11-13 13:19:30,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:30,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 50 [2024-11-13 13:19:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:19:30,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:30,237 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:30,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429489010] [2024-11-13 13:19:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429489010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:30,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:30,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:19:30,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457987107] [2024-11-13 13:19:30,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:30,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:19:30,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:19:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2024-11-13 13:19:30,239 INFO L87 Difference]: Start difference. First operand 561 states and 742 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:33,942 INFO L93 Difference]: Finished difference Result 1144 states and 1513 transitions. [2024-11-13 13:19:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:19:33,944 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 13:19:33,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:33,949 INFO L225 Difference]: With dead ends: 1144 [2024-11-13 13:19:33,949 INFO L226 Difference]: Without dead ends: 613 [2024-11-13 13:19:33,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=72, Invalid=136, Unknown=2, NotChecked=0, Total=210 [2024-11-13 13:19:33,951 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 232 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:33,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 355 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 13:19:33,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-13 13:19:34,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 578. [2024-11-13 13:19:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 523 states have (on average 1.2944550669216062) internal successors, (677), 530 states have internal predecessors, (677), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 13:19:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 765 transitions. [2024-11-13 13:19:34,032 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 765 transitions. Word has length 62 [2024-11-13 13:19:34,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:34,033 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 765 transitions. [2024-11-13 13:19:34,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 765 transitions. [2024-11-13 13:19:34,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:34,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:34,035 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:34,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:34,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:34,236 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:34,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1827874158, now seen corresponding path program 1 times [2024-11-13 13:19:34,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:34,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103773046] [2024-11-13 13:19:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:34,237 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 [2024-11-13 13:19:34,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:34,239 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:34,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:34,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 13:19:34,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:34,638 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 [2024-11-13 13:19:35,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:35,092 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 132 treesize of output 59 [2024-11-13 13:19:35,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:35,117 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 132 treesize of output 59 [2024-11-13 13:19:35,161 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:35,161 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 196 treesize of output 110 [2024-11-13 13:19:35,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:35,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 119 [2024-11-13 13:19:35,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:35,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 405 treesize of output 135 [2024-11-13 13:19:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:19:35,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:19:36,248 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103773046] [2024-11-13 13:19:36,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103773046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:19:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807981194] [2024-11-13 13:19:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:36,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:19:36,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:19:36,251 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:19:36,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 13:19:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:36,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:19:36,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:37,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:37,191 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 132 treesize of output 59 [2024-11-13 13:19:37,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:37,219 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 132 treesize of output 59 [2024-11-13 13:19:37,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:37,268 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 196 treesize of output 110 [2024-11-13 13:19:37,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:37,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 119 [2024-11-13 13:19:38,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:38,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 405 treesize of output 135 [2024-11-13 13:19:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:19:38,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:19:38,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807981194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:19:38,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:19:38,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-11-13 13:19:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438892852] [2024-11-13 13:19:38,303 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:19:38,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:19:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:19:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:19:38,304 INFO L87 Difference]: Start difference. First operand 578 states and 765 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:41,297 INFO L93 Difference]: Finished difference Result 1143 states and 1505 transitions. [2024-11-13 13:19:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 13:19:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 13:19:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:41,306 INFO L225 Difference]: With dead ends: 1143 [2024-11-13 13:19:41,306 INFO L226 Difference]: Without dead ends: 595 [2024-11-13 13:19:41,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:19:41,308 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 230 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:41,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 357 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:19:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-13 13:19:41,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 475. [2024-11-13 13:19:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 435 states have (on average 1.3057471264367817) internal successors, (568), 438 states have internal predecessors, (568), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:19:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 628 transitions. [2024-11-13 13:19:41,380 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 628 transitions. Word has length 62 [2024-11-13 13:19:41,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:41,381 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 628 transitions. [2024-11-13 13:19:41,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 628 transitions. [2024-11-13 13:19:41,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:41,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:41,384 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:41,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:41,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 13:19:41,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:19:41,784 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:41,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:41,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2053138344, now seen corresponding path program 1 times [2024-11-13 13:19:41,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:41,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395592973] [2024-11-13 13:19:41,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:41,785 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 [2024-11-13 13:19:41,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:41,790 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:41,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:41,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:19:41,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:42,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:42,046 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 37 treesize of output 17 [2024-11-13 13:19:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:42,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:42,251 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:42,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395592973] [2024-11-13 13:19:42,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395592973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:42,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:42,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:19:42,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164499436] [2024-11-13 13:19:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:42,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:19:42,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:19:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:42,254 INFO L87 Difference]: Start difference. First operand 475 states and 628 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:43,089 INFO L93 Difference]: Finished difference Result 1150 states and 1511 transitions. [2024-11-13 13:19:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:43,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-13 13:19:43,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:43,095 INFO L225 Difference]: With dead ends: 1150 [2024-11-13 13:19:43,095 INFO L226 Difference]: Without dead ends: 678 [2024-11-13 13:19:43,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:19:43,098 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 81 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:43,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 243 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:19:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-13 13:19:43,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 612. [2024-11-13 13:19:43,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 564 states have (on average 1.303191489361702) internal successors, (735), 567 states have internal predecessors, (735), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:19:43,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 807 transitions. [2024-11-13 13:19:43,197 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 807 transitions. Word has length 62 [2024-11-13 13:19:43,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:43,197 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 807 transitions. [2024-11-13 13:19:43,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 807 transitions. [2024-11-13 13:19:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 13:19:43,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:43,199 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:43,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:43,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:43,400 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:43,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1311845292, now seen corresponding path program 1 times [2024-11-13 13:19:43,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:43,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860100404] [2024-11-13 13:19:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:43,401 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 [2024-11-13 13:19:43,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:43,403 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:43,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:43,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:19:43,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:19:43,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:43,621 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:43,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860100404] [2024-11-13 13:19:43,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860100404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:43,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:43,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:19:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195941621] [2024-11-13 13:19:43,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:43,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:19:43,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:19:43,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:19:43,623 INFO L87 Difference]: Start difference. First operand 612 states and 807 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:43,775 INFO L93 Difference]: Finished difference Result 1144 states and 1510 transitions. [2024-11-13 13:19:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:19:43,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-13 13:19:43,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:43,779 INFO L225 Difference]: With dead ends: 1144 [2024-11-13 13:19:43,779 INFO L226 Difference]: Without dead ends: 612 [2024-11-13 13:19:43,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:19:43,781 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 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 [2024-11-13 13:19:43,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:19:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-13 13:19:43,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2024-11-13 13:19:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 564 states have (on average 1.2960992907801419) internal successors, (731), 567 states have internal predecessors, (731), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:19:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 803 transitions. [2024-11-13 13:19:43,867 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 803 transitions. Word has length 62 [2024-11-13 13:19:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:43,868 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 803 transitions. [2024-11-13 13:19:43,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:19:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 803 transitions. [2024-11-13 13:19:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:19:43,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:43,869 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:43,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:44,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:44,070 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:44,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash 264946402, now seen corresponding path program 1 times [2024-11-13 13:19:44,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:44,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678250568] [2024-11-13 13:19:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:44,071 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 [2024-11-13 13:19:44,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:44,073 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:44,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:44,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 13:19:44,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:44,382 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 [2024-11-13 13:19:44,471 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 16 treesize of output 12 [2024-11-13 13:19:44,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-13 13:19:44,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:44,524 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 54 treesize of output 44 [2024-11-13 13:19:44,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:44,587 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 73 treesize of output 80 [2024-11-13 13:19:44,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:44,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 89 [2024-11-13 13:19:45,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:45,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 52 [2024-11-13 13:19:45,784 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:45,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:45,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:45,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678250568] [2024-11-13 13:19:45,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678250568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:45,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:45,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:19:45,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578874866] [2024-11-13 13:19:45,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:45,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:19:45,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:45,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:19:45,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:19:45,788 INFO L87 Difference]: Start difference. First operand 612 states and 803 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:49,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:49,230 INFO L93 Difference]: Finished difference Result 758 states and 996 transitions. [2024-11-13 13:19:49,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:19:49,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-13 13:19:49,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:49,234 INFO L225 Difference]: With dead ends: 758 [2024-11-13 13:19:49,235 INFO L226 Difference]: Without dead ends: 756 [2024-11-13 13:19:49,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:19:49,236 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 393 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:49,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 547 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 13:19:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-13 13:19:49,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 624. [2024-11-13 13:19:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 576 states have (on average 1.2899305555555556) internal successors, (743), 579 states have internal predecessors, (743), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:19:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 815 transitions. [2024-11-13 13:19:49,328 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 815 transitions. Word has length 64 [2024-11-13 13:19:49,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:49,328 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 815 transitions. [2024-11-13 13:19:49,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 815 transitions. [2024-11-13 13:19:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:19:49,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:49,330 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:49,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-13 13:19:49,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:49,531 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:49,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash 266793444, now seen corresponding path program 1 times [2024-11-13 13:19:49,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:49,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813768127] [2024-11-13 13:19:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:49,544 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 [2024-11-13 13:19:49,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:49,547 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:49,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:49,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 13:19:49,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:49,895 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 [2024-11-13 13:19:49,986 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 14 treesize of output 10 [2024-11-13 13:19:50,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-13 13:19:50,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:50,065 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 59 treesize of output 43 [2024-11-13 13:19:50,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:50,134 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 65 treesize of output 78 [2024-11-13 13:19:50,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:50,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 87 [2024-11-13 13:19:51,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:51,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 65 [2024-11-13 13:19:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:51,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:51,298 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:51,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813768127] [2024-11-13 13:19:51,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813768127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:51,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:19:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853962059] [2024-11-13 13:19:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:51,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:19:51,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:51,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:19:51,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:19:51,300 INFO L87 Difference]: Start difference. First operand 624 states and 815 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:54,344 INFO L93 Difference]: Finished difference Result 1252 states and 1641 transitions. [2024-11-13 13:19:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:19:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-13 13:19:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:54,347 INFO L225 Difference]: With dead ends: 1252 [2024-11-13 13:19:54,347 INFO L226 Difference]: Without dead ends: 768 [2024-11-13 13:19:54,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:19:54,349 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 376 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:54,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 541 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:19:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-13 13:19:54,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 636. [2024-11-13 13:19:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 588 states have (on average 1.284013605442177) internal successors, (755), 591 states have internal predecessors, (755), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:19:54,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 827 transitions. [2024-11-13 13:19:54,441 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 827 transitions. Word has length 64 [2024-11-13 13:19:54,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:54,441 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 827 transitions. [2024-11-13 13:19:54,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 827 transitions. [2024-11-13 13:19:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:19:54,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:54,443 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:54,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:54,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:54,644 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:54,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:54,644 INFO L85 PathProgramCache]: Analyzing trace with hash -327265501, now seen corresponding path program 1 times [2024-11-13 13:19:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:54,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928082578] [2024-11-13 13:19:54,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:54,645 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 [2024-11-13 13:19:54,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:54,647 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:54,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:54,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:19:54,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:54,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:19:54,903 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 103 treesize of output 31 [2024-11-13 13:19:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:54,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:54,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:54,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928082578] [2024-11-13 13:19:54,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928082578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:54,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:54,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:19:54,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469808306] [2024-11-13 13:19:54,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:54,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:19:54,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:54,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:19:54,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:19:54,928 INFO L87 Difference]: Start difference. First operand 636 states and 827 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:55,014 INFO L93 Difference]: Finished difference Result 1196 states and 1553 transitions. [2024-11-13 13:19:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:19:55,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-13 13:19:55,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:55,021 INFO L225 Difference]: With dead ends: 1196 [2024-11-13 13:19:55,021 INFO L226 Difference]: Without dead ends: 636 [2024-11-13 13:19:55,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:19:55,023 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:55,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:19:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-13 13:19:55,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2024-11-13 13:19:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 588 states have (on average 1.2636054421768708) internal successors, (743), 591 states have internal predecessors, (743), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:19:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 815 transitions. [2024-11-13 13:19:55,115 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 815 transitions. Word has length 64 [2024-11-13 13:19:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:55,116 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 815 transitions. [2024-11-13 13:19:55,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 815 transitions. [2024-11-13 13:19:55,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:19:55,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:55,118 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:55,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:55,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:55,319 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:55,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:55,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1973557089, now seen corresponding path program 1 times [2024-11-13 13:19:55,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114323123] [2024-11-13 13:19:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:55,320 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 [2024-11-13 13:19:55,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:55,322 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:55,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-13 13:19:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:55,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:19:55,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:55,646 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 [2024-11-13 13:19:55,657 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 27 treesize of output 15 [2024-11-13 13:19:55,673 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 [2024-11-13 13:19:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:19:55,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:19:55,703 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:19:55,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114323123] [2024-11-13 13:19:55,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114323123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:55,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:55,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:19:55,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34637928] [2024-11-13 13:19:55,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:55,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:19:55,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:19:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:19:55,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:19:55,705 INFO L87 Difference]: Start difference. First operand 636 states and 815 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:19:56,428 INFO L93 Difference]: Finished difference Result 1420 states and 1809 transitions. [2024-11-13 13:19:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:19:56,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-11-13 13:19:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:19:56,431 INFO L225 Difference]: With dead ends: 1420 [2024-11-13 13:19:56,431 INFO L226 Difference]: Without dead ends: 856 [2024-11-13 13:19:56,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:19:56,433 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 63 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:19:56,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 233 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 13:19:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-13 13:19:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 610. [2024-11-13 13:19:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 562 states have (on average 1.2473309608540926) internal successors, (701), 565 states have internal predecessors, (701), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:19:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 773 transitions. [2024-11-13 13:19:56,521 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 773 transitions. Word has length 64 [2024-11-13 13:19:56,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:19:56,522 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 773 transitions. [2024-11-13 13:19:56,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:19:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 773 transitions. [2024-11-13 13:19:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:19:56,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:56,523 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:56,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-13 13:19:56,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:19:56,724 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:56,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:56,725 INFO L85 PathProgramCache]: Analyzing trace with hash 196043960, now seen corresponding path program 1 times [2024-11-13 13:19:56,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:19:56,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674243307] [2024-11-13 13:19:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:56,725 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 [2024-11-13 13:19:56,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:19:56,727 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:19:56,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:19:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:57,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 13:19:57,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:19:57,101 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 25 treesize of output 10 [2024-11-13 13:20:01,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:01,863 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 140 treesize of output 61 [2024-11-13 13:20:02,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:02,003 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 140 treesize of output 61 [2024-11-13 13:20:02,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:02,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 94 [2024-11-13 13:20:02,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:02,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 206 treesize of output 144 [2024-11-13 13:20:02,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:02,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 153 [2024-11-13 13:20:03,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:03,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 385 treesize of output 151 [2024-11-13 13:20:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:20:03,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:20:07,803 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:20:07,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674243307] [2024-11-13 13:20:07,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674243307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:07,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979828442] [2024-11-13 13:20:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:07,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:07,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:07,806 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:07,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 13:20:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:08,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 13:20:08,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:09,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:09,366 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 75 treesize of output 38 [2024-11-13 13:20:09,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:09,384 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 75 treesize of output 38 [2024-11-13 13:20:09,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:09,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 71 [2024-11-13 13:20:09,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:09,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 171 treesize of output 115 [2024-11-13 13:20:09,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:09,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 121 [2024-11-13 13:20:10,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:10,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 365 treesize of output 119 [2024-11-13 13:20:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:20:10,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:20:10,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979828442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:10,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:20:10,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2024-11-13 13:20:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404523683] [2024-11-13 13:20:10,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:10,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:20:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:20:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:20:10,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=497, Unknown=2, NotChecked=0, Total=600 [2024-11-13 13:20:10,558 INFO L87 Difference]: Start difference. First operand 610 states and 773 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:20:20,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:20,045 INFO L93 Difference]: Finished difference Result 1388 states and 1759 transitions. [2024-11-13 13:20:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:20:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-13 13:20:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:20,050 INFO L225 Difference]: With dead ends: 1388 [2024-11-13 13:20:20,050 INFO L226 Difference]: Without dead ends: 1018 [2024-11-13 13:20:20,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=187, Invalid=1001, Unknown=2, NotChecked=0, Total=1190 [2024-11-13 13:20:20,052 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 162 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:20,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 774 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-13 13:20:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-13 13:20:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 731. [2024-11-13 13:20:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 678 states have (on average 1.2492625368731562) internal successors, (847), 681 states have internal predecessors, (847), 40 states have call successors, (40), 12 states have call predecessors, (40), 12 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-13 13:20:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 927 transitions. [2024-11-13 13:20:20,151 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 927 transitions. Word has length 64 [2024-11-13 13:20:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:20,152 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 927 transitions. [2024-11-13 13:20:20,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:20:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 927 transitions. [2024-11-13 13:20:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:20:20,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:20,154 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:20,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:20,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:20:20,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:20:20,555 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:20,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash -392371464, now seen corresponding path program 1 times [2024-11-13 13:20:20,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:20:20,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315512738] [2024-11-13 13:20:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:20,556 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 [2024-11-13 13:20:20,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:20:20,560 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:20:20,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:20:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:20,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 13:20:20,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:21,016 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 20 treesize of output 21 [2024-11-13 13:20:25,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:25,888 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 150 treesize of output 65 [2024-11-13 13:20:26,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:26,011 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 150 treesize of output 65 [2024-11-13 13:20:26,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:26,169 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 219 treesize of output 106 [2024-11-13 13:20:26,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:26,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-11-13 13:20:27,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:20:27,038 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 246 treesize of output 78 [2024-11-13 13:20:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:20:27,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:20:29,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:20:29,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315512738] [2024-11-13 13:20:29,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315512738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:29,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715861315] [2024-11-13 13:20:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:29,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:29,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:29,180 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:29,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 13:20:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:31,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 13:20:31,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:32,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:21:32,233 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 130 treesize of output 57 [2024-11-13 13:21:32,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:21:32,248 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 130 treesize of output 57 [2024-11-13 13:21:32,281 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:21:32,281 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 199 treesize of output 98 [2024-11-13 13:21:32,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:21:32,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-11-13 13:21:33,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:21:33,269 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 246 treesize of output 78 [2024-11-13 13:21:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:21:33,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:33,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715861315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:33,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:21:33,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 22 [2024-11-13 13:21:33,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328286660] [2024-11-13 13:21:33,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:33,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 13:21:33,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:21:33,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 13:21:33,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=528, Unknown=16, NotChecked=0, Total=650 [2024-11-13 13:21:33,495 INFO L87 Difference]: Start difference. First operand 731 states and 927 transitions. Second operand has 23 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:21:59,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:59,002 INFO L93 Difference]: Finished difference Result 1836 states and 2322 transitions. [2024-11-13 13:21:59,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 13:21:59,004 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2024-11-13 13:21:59,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:59,007 INFO L225 Difference]: With dead ends: 1836 [2024-11-13 13:21:59,007 INFO L226 Difference]: Without dead ends: 1258 [2024-11-13 13:21:59,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 150 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 87.5s TimeCoverageRelationStatistics Valid=470, Invalid=1960, Unknown=20, NotChecked=0, Total=2450 [2024-11-13 13:21:59,008 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 430 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:59,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 755 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-13 13:21:59,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-13 13:21:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 618. [2024-11-13 13:21:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 569 states have (on average 1.2442882249560632) internal successors, (708), 572 states have internal predecessors, (708), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-13 13:21:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 780 transitions. [2024-11-13 13:21:59,129 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 780 transitions. Word has length 64 [2024-11-13 13:21:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:59,129 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 780 transitions. [2024-11-13 13:21:59,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:21:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 780 transitions. [2024-11-13 13:21:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:21:59,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:59,132 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:59,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:21:59,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-13 13:21:59,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:59,532 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:59,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash 470803574, now seen corresponding path program 1 times [2024-11-13 13:21:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:21:59,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189413477] [2024-11-13 13:21:59,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:59,533 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 [2024-11-13 13:21:59,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:21:59,535 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:21:59,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:21:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:59,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:21:59,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:21:59,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:21:59,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:21:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189413477] [2024-11-13 13:21:59,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189413477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:59,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:59,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:21:59,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996616906] [2024-11-13 13:21:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:59,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:21:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:21:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:21:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:59,811 INFO L87 Difference]: Start difference. First operand 618 states and 780 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:21:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:59,981 INFO L93 Difference]: Finished difference Result 903 states and 1133 transitions. [2024-11-13 13:21:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:21:59,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-13 13:21:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:59,984 INFO L225 Difference]: With dead ends: 903 [2024-11-13 13:21:59,984 INFO L226 Difference]: Without dead ends: 345 [2024-11-13 13:21:59,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:21:59,985 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 1 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:59,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 398 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:21:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-13 13:22:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 337. [2024-11-13 13:22:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 308 states have (on average 1.224025974025974) internal successors, (377), 308 states have internal predecessors, (377), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 13:22:00,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2024-11-13 13:22:00,050 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 64 [2024-11-13 13:22:00,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:00,050 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2024-11-13 13:22:00,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:22:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2024-11-13 13:22:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:22:00,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:00,052 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:00,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:00,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:00,253 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:00,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1789383983, now seen corresponding path program 1 times [2024-11-13 13:22:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:00,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324035433] [2024-11-13 13:22:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:00,254 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 [2024-11-13 13:22:00,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:00,256 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:00,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:00,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:22:00,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:00,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:00,708 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 103 treesize of output 31 [2024-11-13 13:22:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:22:00,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:22:00,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:22:00,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324035433] [2024-11-13 13:22:00,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324035433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:22:00,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:22:00,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:22:00,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126458659] [2024-11-13 13:22:00,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:22:00,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:22:00,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:22:00,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:22:00,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:22:00,740 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:22:00,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:22:00,853 INFO L93 Difference]: Finished difference Result 559 states and 700 transitions. [2024-11-13 13:22:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:22:00,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-13 13:22:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:22:00,856 INFO L225 Difference]: With dead ends: 559 [2024-11-13 13:22:00,856 INFO L226 Difference]: Without dead ends: 337 [2024-11-13 13:22:00,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:22:00,858 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:22:00,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:22:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-13 13:22:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-13 13:22:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 308 states have (on average 1.2077922077922079) internal successors, (372), 308 states have internal predecessors, (372), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 13:22:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 412 transitions. [2024-11-13 13:22:00,911 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 412 transitions. Word has length 67 [2024-11-13 13:22:00,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:00,911 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 412 transitions. [2024-11-13 13:22:00,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:22:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 412 transitions. [2024-11-13 13:22:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:22:00,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:00,912 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:00,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:01,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:01,116 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:01,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash 700144979, now seen corresponding path program 1 times [2024-11-13 13:22:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:01,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147752961] [2024-11-13 13:22:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:01,117 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 [2024-11-13 13:22:01,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:01,119 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:01,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:01,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 13:22:01,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:01,412 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 [2024-11-13 13:22:01,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:22:01,530 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 31 treesize of output 34 [2024-11-13 13:22:05,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:05,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-13 13:22:05,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:05,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-13 13:22:05,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:05,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 73 [2024-11-13 13:22:05,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:05,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 106 [2024-11-13 13:22:06,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:06,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 124 [2024-11-13 13:22:06,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:06,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 147 treesize of output 63 [2024-11-13 13:22:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 13:22:06,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:22:06,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:22:06,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147752961] [2024-11-13 13:22:06,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147752961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:22:06,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:22:06,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 13:22:06,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224078178] [2024-11-13 13:22:06,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:22:06,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:22:06,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:22:06,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:22:06,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-13 13:22:06,615 INFO L87 Difference]: Start difference. First operand 337 states and 412 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:22:09,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:22:09,110 INFO L93 Difference]: Finished difference Result 674 states and 827 transitions. [2024-11-13 13:22:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:22:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-11-13 13:22:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:22:09,112 INFO L225 Difference]: With dead ends: 674 [2024-11-13 13:22:09,112 INFO L226 Difference]: Without dead ends: 476 [2024-11-13 13:22:09,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2024-11-13 13:22:09,113 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 195 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:22:09,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 333 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:22:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-13 13:22:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 343. [2024-11-13 13:22:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 314 states have (on average 1.2070063694267517) internal successors, (379), 314 states have internal predecessors, (379), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 13:22:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 419 transitions. [2024-11-13 13:22:09,165 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 419 transitions. Word has length 67 [2024-11-13 13:22:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:09,165 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 419 transitions. [2024-11-13 13:22:09,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:22:09,165 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 419 transitions. [2024-11-13 13:22:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:22:09,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:09,166 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:09,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:09,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:09,367 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:09,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:09,368 INFO L85 PathProgramCache]: Analyzing trace with hash 52151864, now seen corresponding path program 1 times [2024-11-13 13:22:09,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:09,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306972209] [2024-11-13 13:22:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:09,369 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 [2024-11-13 13:22:09,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:09,370 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:09,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:09,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:22:09,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:09,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:09,715 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 103 treesize of output 31 [2024-11-13 13:22:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:22:09,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:22:09,746 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:22:09,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306972209] [2024-11-13 13:22:09,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306972209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:22:09,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:22:09,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:22:09,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008760913] [2024-11-13 13:22:09,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:22:09,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:22:09,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:22:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:22:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:22:09,748 INFO L87 Difference]: Start difference. First operand 343 states and 419 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:22:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:22:10,086 INFO L93 Difference]: Finished difference Result 546 states and 670 transitions. [2024-11-13 13:22:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:22:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-11-13 13:22:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:22:10,089 INFO L225 Difference]: With dead ends: 546 [2024-11-13 13:22:10,089 INFO L226 Difference]: Without dead ends: 329 [2024-11-13 13:22:10,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:22:10,089 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:22:10,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 206 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:22:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-13 13:22:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-13 13:22:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 300 states have (on average 1.18) internal successors, (354), 300 states have internal predecessors, (354), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 13:22:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 394 transitions. [2024-11-13 13:22:10,163 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 394 transitions. Word has length 69 [2024-11-13 13:22:10,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:10,164 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 394 transitions. [2024-11-13 13:22:10,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:22:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 394 transitions. [2024-11-13 13:22:10,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:22:10,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:10,167 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:10,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:10,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:10,368 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:10,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:10,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1629960254, now seen corresponding path program 1 times [2024-11-13 13:22:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:10,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369648961] [2024-11-13 13:22:10,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:10,369 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 [2024-11-13 13:22:10,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:10,371 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:10,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:10,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 13:22:10,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:10,819 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 [2024-11-13 13:22:13,335 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:13,335 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 96 treesize of output 40 [2024-11-13 13:22:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:22:15,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:22:19,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:19,817 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 100 treesize of output 1 [2024-11-13 13:22:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-13 13:22:19,845 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:22:19,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369648961] [2024-11-13 13:22:19,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369648961] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:22:19,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:22:19,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 30 [2024-11-13 13:22:19,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026121280] [2024-11-13 13:22:19,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:22:19,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:22:19,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:22:19,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:22:19,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-11-13 13:22:19,846 INFO L87 Difference]: Start difference. First operand 329 states and 394 transitions. Second operand has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-13 13:22:31,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:22:31,404 INFO L93 Difference]: Finished difference Result 842 states and 1005 transitions. [2024-11-13 13:22:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-13 13:22:31,405 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-11-13 13:22:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:22:31,408 INFO L225 Difference]: With dead ends: 842 [2024-11-13 13:22:31,408 INFO L226 Difference]: Without dead ends: 587 [2024-11-13 13:22:31,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 13:22:31,411 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 224 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:22:31,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 539 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 13:22:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-13 13:22:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 429. [2024-11-13 13:22:31,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 386 states have (on average 1.1735751295336787) internal successors, (453), 386 states have internal predecessors, (453), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:22:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 513 transitions. [2024-11-13 13:22:31,501 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 513 transitions. Word has length 123 [2024-11-13 13:22:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:31,501 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 513 transitions. [2024-11-13 13:22:31,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-13 13:22:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 513 transitions. [2024-11-13 13:22:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:22:31,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:31,503 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:31,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-13 13:22:31,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:31,704 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:31,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash -930902592, now seen corresponding path program 1 times [2024-11-13 13:22:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:31,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733653860] [2024-11-13 13:22:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:31,705 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 [2024-11-13 13:22:31,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:31,707 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:31,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:32,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 13:22:32,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:32,242 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 17 [2024-11-13 13:22:32,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2024-11-13 13:22:32,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:22:32,331 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 30 treesize of output 1 [2024-11-13 13:22:32,369 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 [2024-11-13 13:22:32,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-11-13 13:22:32,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:32,486 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 83 treesize of output 64 [2024-11-13 13:22:32,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:32,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 69 [2024-11-13 13:22:32,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:32,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 69 [2024-11-13 13:22:34,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:34,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 48 [2024-11-13 13:22:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:22:34,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:22:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-13 13:22:36,588 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:22:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733653860] [2024-11-13 13:22:36,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733653860] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:22:36,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:22:36,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 28 [2024-11-13 13:22:36,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523002536] [2024-11-13 13:22:36,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:22:36,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:22:36,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:22:36,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:22:36,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2024-11-13 13:22:36,590 INFO L87 Difference]: Start difference. First operand 429 states and 513 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-13 13:22:41,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:22:41,857 INFO L93 Difference]: Finished difference Result 883 states and 1055 transitions. [2024-11-13 13:22:41,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 13:22:41,859 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-11-13 13:22:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:22:41,861 INFO L225 Difference]: With dead ends: 883 [2024-11-13 13:22:41,862 INFO L226 Difference]: Without dead ends: 679 [2024-11-13 13:22:41,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 216 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=346, Invalid=1460, Unknown=0, NotChecked=0, Total=1806 [2024-11-13 13:22:41,863 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 528 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:22:41,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 436 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 13:22:41,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-13 13:22:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 430. [2024-11-13 13:22:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 387 states have (on average 1.1757105943152455) internal successors, (455), 387 states have internal predecessors, (455), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:22:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 515 transitions. [2024-11-13 13:22:41,988 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 515 transitions. Word has length 123 [2024-11-13 13:22:41,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:41,989 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 515 transitions. [2024-11-13 13:22:41,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-13 13:22:41,989 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 515 transitions. [2024-11-13 13:22:41,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 13:22:41,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:41,991 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:42,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-11-13 13:22:42,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:42,192 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:42,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:42,192 INFO L85 PathProgramCache]: Analyzing trace with hash 635855358, now seen corresponding path program 1 times [2024-11-13 13:22:42,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:42,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731446898] [2024-11-13 13:22:42,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:42,193 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 [2024-11-13 13:22:42,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:42,195 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:42,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:42,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 13:22:42,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:42,804 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 [2024-11-13 13:22:42,807 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 19 treesize of output 19 [2024-11-13 13:22:42,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:42,835 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 60 treesize of output 30 [2024-11-13 13:22:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-13 13:22:42,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:22:42,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:22:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731446898] [2024-11-13 13:22:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731446898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:22:42,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:22:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:22:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796070555] [2024-11-13 13:22:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:22:42,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:22:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:22:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:22:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:22:42,859 INFO L87 Difference]: Start difference. First operand 430 states and 515 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:22:43,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:22:43,340 INFO L93 Difference]: Finished difference Result 644 states and 779 transitions. [2024-11-13 13:22:43,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:22:43,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2024-11-13 13:22:43,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:22:43,343 INFO L225 Difference]: With dead ends: 644 [2024-11-13 13:22:43,343 INFO L226 Difference]: Without dead ends: 436 [2024-11-13 13:22:43,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:22:43,344 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:22:43,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 225 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:22:43,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-13 13:22:43,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 430. [2024-11-13 13:22:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 387 states have (on average 1.1705426356589148) internal successors, (453), 387 states have internal predecessors, (453), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-13 13:22:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 513 transitions. [2024-11-13 13:22:43,419 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 513 transitions. Word has length 123 [2024-11-13 13:22:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:22:43,420 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 513 transitions. [2024-11-13 13:22:43,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:22:43,420 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 513 transitions. [2024-11-13 13:22:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 13:22:43,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:22:43,421 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:22:43,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-13 13:22:43,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:22:43,622 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:22:43,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:22:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1857501047, now seen corresponding path program 1 times [2024-11-13 13:22:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:22:43,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439630142] [2024-11-13 13:22:43,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:22:43,623 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 [2024-11-13 13:22:43,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:22:43,624 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:22:43,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:22:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:22:44,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 13:22:44,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:22:44,389 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 [2024-11-13 13:22:44,500 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 16 treesize of output 12 [2024-11-13 13:22:44,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:22:44,531 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 52 treesize of output 14 [2024-11-13 13:22:44,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-13 13:22:45,003 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 55 treesize of output 37 [2024-11-13 13:22:45,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:45,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 37 treesize of output 17 [2024-11-13 13:22:45,108 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 [2024-11-13 13:22:45,292 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 41 treesize of output 14 [2024-11-13 13:22:45,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:45,585 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 66 treesize of output 62 [2024-11-13 13:22:45,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 76 [2024-11-13 13:22:45,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:22:45,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 119 [2024-11-13 13:22:46,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 180 [2024-11-13 13:22:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 158 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-13 13:22:46,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:23:00,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:23:00,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439630142] [2024-11-13 13:23:00,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439630142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:23:00,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406541068] [2024-11-13 13:23:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:23:00,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:23:00,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:23:00,116 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:23:00,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-13 13:23:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:00,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-13 13:23:00,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:23:00,501 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 [2024-11-13 13:23:04,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:04,524 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 51 treesize of output 21 [2024-11-13 13:23:06,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2024-11-13 13:23:06,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:06,989 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 73 treesize of output 63 [2024-11-13 13:23:07,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:07,706 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 100 treesize of output 81 [2024-11-13 13:23:09,210 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:09,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 114 [2024-11-13 13:23:10,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:10,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 139 treesize of output 132 [2024-11-13 13:23:14,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:14,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 175 treesize of output 81 [2024-11-13 13:23:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 128 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:23:15,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:23:21,514 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 90 treesize of output 60 [2024-11-13 13:23:27,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406541068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:23:27,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:23:27,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 34 [2024-11-13 13:23:27,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992204234] [2024-11-13 13:23:27,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:23:27,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-13 13:23:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:23:27,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-13 13:23:27,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2120, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 13:23:27,596 INFO L87 Difference]: Start difference. First operand 430 states and 513 transitions. Second operand has 35 states, 35 states have (on average 3.742857142857143) internal successors, (131), 34 states have internal predecessors, (131), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:23:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:23:57,490 INFO L93 Difference]: Finished difference Result 1166 states and 1402 transitions. [2024-11-13 13:23:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-13 13:23:57,491 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.742857142857143) internal successors, (131), 34 states have internal predecessors, (131), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2024-11-13 13:23:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:23:57,497 INFO L225 Difference]: With dead ends: 1166 [2024-11-13 13:23:57,497 INFO L226 Difference]: Without dead ends: 958 [2024-11-13 13:23:57,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2378 ImplicationChecksByTransitivity, 51.2s TimeCoverageRelationStatistics Valid=1017, Invalid=7539, Unknown=0, NotChecked=0, Total=8556 [2024-11-13 13:23:57,500 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 680 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:23:57,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1565 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-11-13 13:23:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-13 13:23:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 795. [2024-11-13 13:23:57,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 732 states have (on average 1.1816939890710383) internal successors, (865), 734 states have internal predecessors, (865), 44 states have call successors, (44), 18 states have call predecessors, (44), 18 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 13:23:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 953 transitions. [2024-11-13 13:23:57,642 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 953 transitions. Word has length 125 [2024-11-13 13:23:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:23:57,643 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 953 transitions. [2024-11-13 13:23:57,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.742857142857143) internal successors, (131), 34 states have internal predecessors, (131), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-13 13:23:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 953 transitions. [2024-11-13 13:23:57,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 13:23:57,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:23:57,644 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:23:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-13 13:23:57,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-13 13:23:58,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:23:58,045 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:23:58,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:23:58,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2014764423, now seen corresponding path program 1 times [2024-11-13 13:23:58,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:23:58,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97364445] [2024-11-13 13:23:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:23:58,046 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 [2024-11-13 13:23:58,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:23:58,048 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:23:58,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:23:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:58,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-13 13:23:58,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:23:58,818 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 [2024-11-13 13:23:58,910 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 16 treesize of output 12 [2024-11-13 13:23:58,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:23:58,936 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 42 treesize of output 34 [2024-11-13 13:23:58,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:58,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 40 [2024-11-13 13:23:59,863 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 75 treesize of output 53 [2024-11-13 13:23:59,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:23:59,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 53 treesize of output 25 [2024-11-13 13:24:00,011 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 [2024-11-13 13:24:00,242 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 31 treesize of output 34 [2024-11-13 13:24:04,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:04,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 72 [2024-11-13 13:24:04,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 86 [2024-11-13 13:24:05,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 135 [2024-11-13 13:24:06,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:06,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 181 treesize of output 160 [2024-11-13 13:24:06,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:06,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 151 treesize of output 73 [2024-11-13 13:24:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 161 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 13:24:06,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:24:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-13 13:24:08,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:24:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97364445] [2024-11-13 13:24:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97364445] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:24:08,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:24:08,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 25 [2024-11-13 13:24:08,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484109235] [2024-11-13 13:24:08,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:24:08,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:24:08,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:24:08,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:24:08,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=507, Unknown=1, NotChecked=0, Total=600 [2024-11-13 13:24:08,537 INFO L87 Difference]: Start difference. First operand 795 states and 953 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:24:13,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:24:17,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:24:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:24:18,382 INFO L93 Difference]: Finished difference Result 1406 states and 1693 transitions. [2024-11-13 13:24:18,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:24:18,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 125 [2024-11-13 13:24:18,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:24:18,387 INFO L225 Difference]: With dead ends: 1406 [2024-11-13 13:24:18,387 INFO L226 Difference]: Without dead ends: 907 [2024-11-13 13:24:18,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=99, Invalid=550, Unknown=1, NotChecked=0, Total=650 [2024-11-13 13:24:18,389 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 81 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:24:18,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 264 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2024-11-13 13:24:18,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-13 13:24:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 810. [2024-11-13 13:24:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 747 states have (on average 1.178045515394913) internal successors, (880), 749 states have internal predecessors, (880), 44 states have call successors, (44), 18 states have call predecessors, (44), 18 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 13:24:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 968 transitions. [2024-11-13 13:24:18,511 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 968 transitions. Word has length 125 [2024-11-13 13:24:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:24:18,511 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 968 transitions. [2024-11-13 13:24:18,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:24:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 968 transitions. [2024-11-13 13:24:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-13 13:24:18,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:24:18,512 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:24:18,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Ended with exit code 0 [2024-11-13 13:24:18,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:24:18,713 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:24:18,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:24:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1723487541, now seen corresponding path program 1 times [2024-11-13 13:24:18,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:24:18,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757622954] [2024-11-13 13:24:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:24:18,714 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 [2024-11-13 13:24:18,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:24:18,716 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:24:18,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-13 13:24:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:24:19,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 13:24:19,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:24:19,328 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 [2024-11-13 13:24:20,272 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 59 treesize of output 41 [2024-11-13 13:24:20,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:20,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2024-11-13 13:24:20,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-13 13:24:20,805 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 31 treesize of output 34 [2024-11-13 13:24:25,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:25,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 76 [2024-11-13 13:24:26,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 90 [2024-11-13 13:24:26,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:26,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 138 treesize of output 122 [2024-11-13 13:24:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 13:24:26,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:24:30,587 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:24:30,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757622954] [2024-11-13 13:24:30,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757622954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:24:30,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975956657] [2024-11-13 13:24:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:24:30,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:24:30,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:24:30,589 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:24:30,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-13 13:24:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:24:30,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 13:24:30,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:24:30,986 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 [2024-11-13 13:24:31,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:31,330 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 51 treesize of output 21 [2024-11-13 13:24:32,470 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 38 treesize of output 37 [2024-11-13 13:24:32,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:32,780 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 55 treesize of output 51 [2024-11-13 13:24:33,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:33,063 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 82 treesize of output 69 [2024-11-13 13:24:33,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:33,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 82 [2024-11-13 13:24:37,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:37,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 107 treesize of output 94 [2024-11-13 13:24:39,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:24:39,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 131 treesize of output 67 [2024-11-13 13:24:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 128 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:24:40,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:24:49,396 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 44 treesize of output 32 [2024-11-13 13:24:49,453 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 45 treesize of output 33 [2024-11-13 13:24:49,472 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 62 treesize of output 44 [2024-11-13 13:24:50,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975956657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:24:50,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:24:50,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 30 [2024-11-13 13:24:50,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269697267] [2024-11-13 13:24:50,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:24:50,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 13:24:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:24:50,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 13:24:50,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1942, Unknown=2, NotChecked=0, Total=2162 [2024-11-13 13:24:50,359 INFO L87 Difference]: Start difference. First operand 810 states and 968 transitions. Second operand has 31 states, 31 states have (on average 3.5161290322580645) internal successors, (109), 30 states have internal predecessors, (109), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:24:59,868 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 [0] [2024-11-13 13:25:08,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:12,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:16,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:20,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:24,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:28,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:32,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:36,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:25:53,772 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 [0] [2024-11-13 13:26:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:26:22,282 INFO L93 Difference]: Finished difference Result 1406 states and 1680 transitions. [2024-11-13 13:26:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-13 13:26:22,283 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.5161290322580645) internal successors, (109), 30 states have internal predecessors, (109), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 125 [2024-11-13 13:26:22,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:26:22,285 INFO L225 Difference]: With dead ends: 1406 [2024-11-13 13:26:22,286 INFO L226 Difference]: Without dead ends: 892 [2024-11-13 13:26:22,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1667 ImplicationChecksByTransitivity, 59.1s TimeCoverageRelationStatistics Valid=1038, Invalid=6966, Unknown=6, NotChecked=0, Total=8010 [2024-11-13 13:26:22,289 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 818 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 3219 mSolverCounterSat, 140 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 3219 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:26:22,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 1843 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 3219 Invalid, 10 Unknown, 0 Unchecked, 58.5s Time] [2024-11-13 13:26:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2024-11-13 13:26:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 769. [2024-11-13 13:26:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 700 states have (on average 1.1685714285714286) internal successors, (818), 702 states have internal predecessors, (818), 48 states have call successors, (48), 20 states have call predecessors, (48), 20 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-13 13:26:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 914 transitions. [2024-11-13 13:26:22,450 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 914 transitions. Word has length 125 [2024-11-13 13:26:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:26:22,451 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 914 transitions. [2024-11-13 13:26:22,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.5161290322580645) internal successors, (109), 30 states have internal predecessors, (109), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 13:26:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 914 transitions. [2024-11-13 13:26:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 13:26:22,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:26:22,452 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:22,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-13 13:26:22,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-13 13:26:22,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:26:22,853 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:26:22,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1387008901, now seen corresponding path program 1 times [2024-11-13 13:26:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:26:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108070389] [2024-11-13 13:26:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:22,855 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 [2024-11-13 13:26:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:26:22,857 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:26:22,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-13 13:26:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:23,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:26:23,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:26:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-13 13:26:23,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:26:23,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:26:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108070389] [2024-11-13 13:26:23,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108070389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:26:23,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:26:23,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:26:23,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316531676] [2024-11-13 13:26:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:26:23,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:26:23,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:26:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:26:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:26:23,456 INFO L87 Difference]: Start difference. First operand 769 states and 914 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:26:23,662 INFO L93 Difference]: Finished difference Result 1095 states and 1313 transitions. [2024-11-13 13:26:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:26:23,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 127 [2024-11-13 13:26:23,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:26:23,666 INFO L225 Difference]: With dead ends: 1095 [2024-11-13 13:26:23,666 INFO L226 Difference]: Without dead ends: 638 [2024-11-13 13:26:23,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:26:23,667 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 33 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:26:23,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 316 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:26:23,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-13 13:26:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 540. [2024-11-13 13:26:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 485 states have (on average 1.1567010309278352) internal successors, (561), 487 states have internal predecessors, (561), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:26:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 637 transitions. [2024-11-13 13:26:23,786 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 637 transitions. Word has length 127 [2024-11-13 13:26:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:26:23,786 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 637 transitions. [2024-11-13 13:26:23,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 637 transitions. [2024-11-13 13:26:23,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 13:26:23,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:26:23,788 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:23,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2024-11-13 13:26:23,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:26:23,988 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:26:23,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1229742955, now seen corresponding path program 1 times [2024-11-13 13:26:23,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:26:23,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486965239] [2024-11-13 13:26:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:23,990 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 [2024-11-13 13:26:23,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:26:23,992 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:26:23,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-13 13:26:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:24,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 13:26:24,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:26:24,699 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 [2024-11-13 13:26:25,157 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 21 [2024-11-13 13:26:25,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 [2024-11-13 13:26:25,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:26:25,242 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 30 treesize of output 1 [2024-11-13 13:26:25,275 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 16 treesize of output 12 [2024-11-13 13:26:25,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-13 13:26:25,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:25,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 49 [2024-11-13 13:26:25,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:25,701 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 77 treesize of output 58 [2024-11-13 13:26:25,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:25,895 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 104 treesize of output 56 [2024-11-13 13:26:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-13 13:26:26,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:26:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-13 13:26:26,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:26:26,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486965239] [2024-11-13 13:26:26,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486965239] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:26:26,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:26:26,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-13 13:26:26,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466906245] [2024-11-13 13:26:26,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:26:26,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:26:26,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:26:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:26:26,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:26:26,283 INFO L87 Difference]: Start difference. First operand 540 states and 637 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:26,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:26:26,910 INFO L93 Difference]: Finished difference Result 892 states and 1063 transitions. [2024-11-13 13:26:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:26:26,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2024-11-13 13:26:26,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:26:26,913 INFO L225 Difference]: With dead ends: 892 [2024-11-13 13:26:26,913 INFO L226 Difference]: Without dead ends: 527 [2024-11-13 13:26:26,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:26:26,915 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 33 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:26:26,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 287 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:26:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-13 13:26:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 511. [2024-11-13 13:26:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 456 states have (on average 1.1491228070175439) internal successors, (524), 458 states have internal predecessors, (524), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:26:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 600 transitions. [2024-11-13 13:26:27,063 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 600 transitions. Word has length 128 [2024-11-13 13:26:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:26:27,064 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 600 transitions. [2024-11-13 13:26:27,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 600 transitions. [2024-11-13 13:26:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 13:26:27,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:26:27,065 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:27,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-13 13:26:27,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:26:27,266 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:26:27,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1506602811, now seen corresponding path program 1 times [2024-11-13 13:26:27,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:26:27,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097379145] [2024-11-13 13:26:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:27,267 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 [2024-11-13 13:26:27,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:26:27,269 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:26:27,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-13 13:26:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:27,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:26:27,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:26:27,851 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 [2024-11-13 13:26:27,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:27,890 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 32 treesize of output 34 [2024-11-13 13:26:27,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:27,926 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 38 treesize of output 16 [2024-11-13 13:26:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-13 13:26:28,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:26:28,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:26:28,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097379145] [2024-11-13 13:26:28,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097379145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:26:28,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:26:28,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:26:28,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712201061] [2024-11-13 13:26:28,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:26:28,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:26:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:26:28,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:26:28,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:26:28,182 INFO L87 Difference]: Start difference. First operand 511 states and 600 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:31,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:26:36,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:26:36,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:26:36,948 INFO L93 Difference]: Finished difference Result 1134 states and 1328 transitions. [2024-11-13 13:26:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:26:36,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2024-11-13 13:26:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:26:36,951 INFO L225 Difference]: With dead ends: 1134 [2024-11-13 13:26:36,952 INFO L226 Difference]: Without dead ends: 763 [2024-11-13 13:26:36,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:26:36,953 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 100 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:26:36,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 339 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-13 13:26:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-13 13:26:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 502. [2024-11-13 13:26:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 447 states have (on average 1.1297539149888143) internal successors, (505), 449 states have internal predecessors, (505), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:26:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 581 transitions. [2024-11-13 13:26:37,077 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 581 transitions. Word has length 128 [2024-11-13 13:26:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:26:37,077 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 581 transitions. [2024-11-13 13:26:37,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:37,077 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 581 transitions. [2024-11-13 13:26:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:26:37,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:26:37,079 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:37,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-11-13 13:26:37,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:26:37,280 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:26:37,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash -137192056, now seen corresponding path program 1 times [2024-11-13 13:26:37,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:26:37,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179187857] [2024-11-13 13:26:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:37,281 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 [2024-11-13 13:26:37,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:26:37,283 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:26:37,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-13 13:26:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:38,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 13:26:38,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:26:38,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:26:38,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-11-13 13:26:38,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:38,264 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 49 treesize of output 44 [2024-11-13 13:26:38,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:38,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 50 [2024-11-13 13:26:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-13 13:26:38,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:26:38,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:26:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179187857] [2024-11-13 13:26:38,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179187857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:26:38,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:26:38,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:26:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904871252] [2024-11-13 13:26:38,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:26:38,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:26:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:26:38,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:26:38,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:26:38,741 INFO L87 Difference]: Start difference. First operand 502 states and 581 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:40,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:26:40,301 INFO L93 Difference]: Finished difference Result 507 states and 586 transitions. [2024-11-13 13:26:40,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:26:40,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-11-13 13:26:40,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:26:40,304 INFO L225 Difference]: With dead ends: 507 [2024-11-13 13:26:40,304 INFO L226 Difference]: Without dead ends: 505 [2024-11-13 13:26:40,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:26:40,305 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 98 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:26:40,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 310 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:26:40,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-13 13:26:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2024-11-13 13:26:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 450 states have (on average 1.1266666666666667) internal successors, (507), 452 states have internal predecessors, (507), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:26:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 583 transitions. [2024-11-13 13:26:40,455 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 583 transitions. Word has length 129 [2024-11-13 13:26:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:26:40,455 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 583 transitions. [2024-11-13 13:26:40,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:26:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 583 transitions. [2024-11-13 13:26:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:26:40,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:26:40,457 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:40,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-13 13:26:40,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:26:40,658 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:26:40,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash -135345014, now seen corresponding path program 1 times [2024-11-13 13:26:40,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:26:40,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684429666] [2024-11-13 13:26:40,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:40,659 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 [2024-11-13 13:26:40,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:26:40,664 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:26:40,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-13 13:26:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:26:41,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-13 13:26:41,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:26:41,548 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 [2024-11-13 13:26:41,651 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 16 treesize of output 12 [2024-11-13 13:26:41,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:26:41,680 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 47 treesize of output 24 [2024-11-13 13:26:45,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:45,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 27 [2024-11-13 13:26:46,450 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 65 treesize of output 45 [2024-11-13 13:26:46,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:46,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 45 treesize of output 21 [2024-11-13 13:26:46,568 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 [2024-11-13 13:26:46,799 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 31 treesize of output 34 [2024-11-13 13:26:51,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:51,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 68 [2024-11-13 13:26:51,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 82 [2024-11-13 13:26:52,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 127 [2024-11-13 13:26:53,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:53,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 159 treesize of output 138 [2024-11-13 13:26:54,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:26:54,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 262 treesize of output 172 [2024-11-13 13:26:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 152 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 13:26:55,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 13:27:00,268 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:27:00,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684429666] [2024-11-13 13:27:00,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684429666] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:00,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [23] total 33 [2024-11-13 13:27:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514494780] [2024-11-13 13:27:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:00,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:27:00,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:27:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:27:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=894, Unknown=2, NotChecked=0, Total=1056 [2024-11-13 13:27:00,270 INFO L87 Difference]: Start difference. First operand 505 states and 583 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:27:05,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:08,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:11,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:15,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:17,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:19,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:25,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-13 13:27:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:25,925 INFO L93 Difference]: Finished difference Result 827 states and 956 transitions. [2024-11-13 13:27:25,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:27:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-11-13 13:27:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:25,931 INFO L225 Difference]: With dead ends: 827 [2024-11-13 13:27:25,931 INFO L226 Difference]: Without dead ends: 642 [2024-11-13 13:27:25,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=239, Invalid=1319, Unknown=2, NotChecked=0, Total=1560 [2024-11-13 13:27:25,933 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 95 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:27:25,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 879 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2024-11-13 13:27:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-13 13:27:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 528. [2024-11-13 13:27:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 473 states have (on average 1.1268498942917549) internal successors, (533), 475 states have internal predecessors, (533), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:27:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 609 transitions. [2024-11-13 13:27:26,065 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 609 transitions. Word has length 129 [2024-11-13 13:27:26,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:26,066 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 609 transitions. [2024-11-13 13:27:26,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:27:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 609 transitions. [2024-11-13 13:27:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:27:26,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:26,067 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:26,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-11-13 13:27:26,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:27:26,267 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:26,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:26,267 INFO L85 PathProgramCache]: Analyzing trace with hash 544713356, now seen corresponding path program 1 times [2024-11-13 13:27:26,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:27:26,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57383874] [2024-11-13 13:27:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:26,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:27:26,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:27:26,270 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:27:26,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-13 13:27:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:26,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-13 13:27:26,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:27,013 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 [2024-11-13 13:27:27,095 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 16 treesize of output 12 [2024-11-13 13:27:27,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:27:27,118 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 52 treesize of output 14 [2024-11-13 13:27:27,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-13 13:27:27,464 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 55 treesize of output 37 [2024-11-13 13:27:27,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:27:27,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 37 treesize of output 17 [2024-11-13 13:27:27,549 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 [2024-11-13 13:27:27,717 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 24 [2024-11-13 13:27:32,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:27:32,326 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 68 treesize of output 67 [2024-11-13 13:27:32,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2024-11-13 13:27:33,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 126 [2024-11-13 13:27:34,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:27:34,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 199 treesize of output 172 [2024-11-13 13:27:35,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:27:35,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 152 treesize of output 80 [2024-11-13 13:27:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 155 proven. 17 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 13:27:35,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 13:27:38,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:27:38,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57383874] [2024-11-13 13:27:38,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57383874] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:38,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:27:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2024-11-13 13:27:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834373726] [2024-11-13 13:27:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:38,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:27:38,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:27:38,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:27:38,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=650, Unknown=1, NotChecked=0, Total=812 [2024-11-13 13:27:38,518 INFO L87 Difference]: Start difference. First operand 528 states and 609 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:27:49,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:49,939 INFO L93 Difference]: Finished difference Result 839 states and 969 transitions. [2024-11-13 13:27:49,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:27:49,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-11-13 13:27:49,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:27:49,943 INFO L225 Difference]: With dead ends: 839 [2024-11-13 13:27:49,943 INFO L226 Difference]: Without dead ends: 631 [2024-11-13 13:27:49,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=211, Invalid=844, Unknown=1, NotChecked=0, Total=1056 [2024-11-13 13:27:49,944 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 127 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:27:49,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 601 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-13 13:27:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-13 13:27:50,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 528. [2024-11-13 13:27:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 473 states have (on average 1.1247357293868923) internal successors, (532), 475 states have internal predecessors, (532), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:27:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 608 transitions. [2024-11-13 13:27:50,064 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 608 transitions. Word has length 129 [2024-11-13 13:27:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:27:50,065 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 608 transitions. [2024-11-13 13:27:50,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:27:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 608 transitions. [2024-11-13 13:27:50,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:27:50,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:27:50,066 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:50,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:50,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:27:50,267 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:27:50,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -644818104, now seen corresponding path program 1 times [2024-11-13 13:27:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:27:50,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324655439] [2024-11-13 13:27:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:50,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:27:50,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:27:50,269 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:27:50,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-13 13:27:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:50,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 13:27:50,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:51,009 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 [2024-11-13 13:27:51,138 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 16 treesize of output 12 [2024-11-13 13:27:51,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:27:51,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2024-11-13 13:27:51,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:27:51,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-11-13 13:27:52,342 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 85 treesize of output 61 [2024-11-13 13:27:52,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:27:52,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 29 [2024-11-13 13:27:52,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:27:52,517 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 20 treesize of output 21 [2024-11-13 13:28:01,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:01,253 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 56 treesize of output 61 [2024-11-13 13:28:01,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 75 [2024-11-13 13:28:01,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:01,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 108 [2024-11-13 13:28:02,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:02,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 120 [2024-11-13 13:28:03,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:03,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 106 treesize of output 52 [2024-11-13 13:28:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 139 proven. 17 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 13:28:07,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:28:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 13:28:10,022 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:28:10,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324655439] [2024-11-13 13:28:10,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324655439] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:10,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:28:10,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 26 [2024-11-13 13:28:10,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294235440] [2024-11-13 13:28:10,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:10,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:28:10,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:28:10,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:28:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=522, Unknown=3, NotChecked=0, Total=650 [2024-11-13 13:28:10,024 INFO L87 Difference]: Start difference. First operand 528 states and 608 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:28:14,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:28:16,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:28:19,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:28:22,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:28:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:23,202 INFO L93 Difference]: Finished difference Result 834 states and 962 transitions. [2024-11-13 13:28:23,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:28:23,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-11-13 13:28:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:23,208 INFO L225 Difference]: With dead ends: 834 [2024-11-13 13:28:23,209 INFO L226 Difference]: Without dead ends: 626 [2024-11-13 13:28:23,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=155, Invalid=654, Unknown=3, NotChecked=0, Total=812 [2024-11-13 13:28:23,210 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 95 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:23,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 414 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-11-13 13:28:23,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-13 13:28:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 553. [2024-11-13 13:28:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 498 states have (on average 1.1265060240963856) internal successors, (561), 500 states have internal predecessors, (561), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:28:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 637 transitions. [2024-11-13 13:28:23,385 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 637 transitions. Word has length 129 [2024-11-13 13:28:23,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:23,386 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 637 transitions. [2024-11-13 13:28:23,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:28:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 637 transitions. [2024-11-13 13:28:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:28:23,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:23,387 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:23,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-11-13 13:28:23,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:28:23,588 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:23,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:23,588 INFO L85 PathProgramCache]: Analyzing trace with hash 35240266, now seen corresponding path program 1 times [2024-11-13 13:28:23,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:28:23,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097516751] [2024-11-13 13:28:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:23,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:28:23,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:28:23,591 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:28:23,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-13 13:28:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:24,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 13:28:24,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:24,450 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 [2024-11-13 13:28:24,547 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 16 treesize of output 12 [2024-11-13 13:28:24,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:28:24,581 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 47 treesize of output 24 [2024-11-13 13:28:28,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:28,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 27 [2024-11-13 13:28:28,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:28,720 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 31 treesize of output 13 [2024-11-13 13:28:28,883 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 16 treesize of output 12 [2024-11-13 13:28:28,929 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 34 treesize of output 27 [2024-11-13 13:28:29,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:29,012 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 63 [2024-11-13 13:28:29,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:29,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 72 [2024-11-13 13:28:29,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:29,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 31 [2024-11-13 13:28:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-13 13:28:29,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:28:30,343 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 13:28:30,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:28:30,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097516751] [2024-11-13 13:28:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097516751] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:28:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 21 [2024-11-13 13:28:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647336324] [2024-11-13 13:28:30,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:30,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:28:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:28:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:28:30,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=363, Unknown=1, NotChecked=0, Total=420 [2024-11-13 13:28:30,345 INFO L87 Difference]: Start difference. First operand 553 states and 637 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:28:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:31,744 INFO L93 Difference]: Finished difference Result 841 states and 972 transitions. [2024-11-13 13:28:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:28:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-11-13 13:28:31,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:31,748 INFO L225 Difference]: With dead ends: 841 [2024-11-13 13:28:31,748 INFO L226 Difference]: Without dead ends: 608 [2024-11-13 13:28:31,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=78, Invalid=571, Unknown=1, NotChecked=0, Total=650 [2024-11-13 13:28:31,749 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 33 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:31,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 692 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 13:28:31,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-13 13:28:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 582. [2024-11-13 13:28:31,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 527 states have (on average 1.1309297912713472) internal successors, (596), 529 states have internal predecessors, (596), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:28:31,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 672 transitions. [2024-11-13 13:28:31,895 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 672 transitions. Word has length 129 [2024-11-13 13:28:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:31,896 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 672 transitions. [2024-11-13 13:28:31,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:28:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 672 transitions. [2024-11-13 13:28:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 13:28:31,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:31,897 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:31,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-11-13 13:28:32,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:28:32,101 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:32,102 INFO L85 PathProgramCache]: Analyzing trace with hash 43802061, now seen corresponding path program 1 times [2024-11-13 13:28:32,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:28:32,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350042827] [2024-11-13 13:28:32,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:32,102 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 [2024-11-13 13:28:32,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:28:32,104 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:28:32,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-13 13:28:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:32,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-13 13:28:32,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:32,995 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 [2024-11-13 13:28:33,087 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 16 treesize of output 12 [2024-11-13 13:28:33,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:28:33,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2024-11-13 13:28:33,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:33,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-11-13 13:28:34,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 61 [2024-11-13 13:28:34,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:34,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 29 [2024-11-13 13:28:34,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:28:34,414 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 20 treesize of output 21 [2024-11-13 13:28:42,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:42,877 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 76 treesize of output 75 [2024-11-13 13:28:42,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:42,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 89 [2024-11-13 13:28:43,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:43,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 107 [2024-11-13 13:28:43,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 120 [2024-11-13 13:28:44,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:44,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 151 treesize of output 138 [2024-11-13 13:28:45,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:45,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 257 treesize of output 145 [2024-11-13 13:28:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 142 proven. 12 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 13:28:45,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:28:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-13 13:28:46,035 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:28:46,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350042827] [2024-11-13 13:28:46,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350042827] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:46,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:28:46,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [22] total 27 [2024-11-13 13:28:46,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592291505] [2024-11-13 13:28:46,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:46,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:28:46,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:28:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:28:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=594, Unknown=2, NotChecked=0, Total=702 [2024-11-13 13:28:46,036 INFO L87 Difference]: Start difference. First operand 582 states and 672 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:28:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:48,123 INFO L93 Difference]: Finished difference Result 948 states and 1101 transitions. [2024-11-13 13:28:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:28:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-13 13:28:48,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:48,127 INFO L225 Difference]: With dead ends: 948 [2024-11-13 13:28:48,127 INFO L226 Difference]: Without dead ends: 686 [2024-11-13 13:28:48,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=124, Invalid=744, Unknown=2, NotChecked=0, Total=870 [2024-11-13 13:28:48,128 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 110 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:48,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 378 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 13:28:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-13 13:28:48,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 589. [2024-11-13 13:28:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 534 states have (on average 1.1310861423220975) internal successors, (604), 536 states have internal predecessors, (604), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:28:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 680 transitions. [2024-11-13 13:28:48,264 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 680 transitions. Word has length 132 [2024-11-13 13:28:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:48,265 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 680 transitions. [2024-11-13 13:28:48,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:28:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 680 transitions. [2024-11-13 13:28:48,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 13:28:48,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:48,266 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:48,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2024-11-13 13:28:48,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:28:48,467 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:48,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:48,467 INFO L85 PathProgramCache]: Analyzing trace with hash -465671029, now seen corresponding path program 1 times [2024-11-13 13:28:48,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:28:48,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609370530] [2024-11-13 13:28:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:48,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:28:48,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:28:48,470 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:28:48,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-11-13 13:28:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:49,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-13 13:28:49,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:49,351 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 [2024-11-13 13:28:49,464 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 16 treesize of output 12 [2024-11-13 13:28:49,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:28:49,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2024-11-13 13:28:49,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:49,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-11-13 13:28:50,715 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 85 treesize of output 61 [2024-11-13 13:28:50,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:50,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 29 [2024-11-13 13:28:50,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-13 13:28:51,020 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 31 treesize of output 34 [2024-11-13 13:28:55,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:55,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 72 [2024-11-13 13:28:55,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 86 [2024-11-13 13:28:56,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 115 [2024-11-13 13:28:57,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:57,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 166 treesize of output 144 [2024-11-13 13:28:59,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:28:59,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 205 treesize of output 111 [2024-11-13 13:28:59,401 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 161 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-13 13:28:59,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:29:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-13 13:29:01,337 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:01,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609370530] [2024-11-13 13:29:01,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609370530] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:29:01,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:29:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 26 [2024-11-13 13:29:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556554619] [2024-11-13 13:29:01,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:01,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:29:01,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:29:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=535, Unknown=1, NotChecked=0, Total=650 [2024-11-13 13:29:01,339 INFO L87 Difference]: Start difference. First operand 589 states and 680 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:29:06,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:10,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:15,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:19,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:23,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:27,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:31,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:35,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:39,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:43,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:44,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:44,250 INFO L93 Difference]: Finished difference Result 968 states and 1110 transitions. [2024-11-13 13:29:44,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:29:44,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-13 13:29:44,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:44,257 INFO L225 Difference]: With dead ends: 968 [2024-11-13 13:29:44,258 INFO L226 Difference]: Without dead ends: 699 [2024-11-13 13:29:44,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=121, Invalid=580, Unknown=1, NotChecked=0, Total=702 [2024-11-13 13:29:44,259 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 84 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:44,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 312 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 10 Unknown, 0 Unchecked, 42.6s Time] [2024-11-13 13:29:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-13 13:29:44,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 604. [2024-11-13 13:29:44,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 549 states have (on average 1.127504553734062) internal successors, (619), 551 states have internal predecessors, (619), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:29:44,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 695 transitions. [2024-11-13 13:29:44,380 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 695 transitions. Word has length 132 [2024-11-13 13:29:44,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:44,380 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 695 transitions. [2024-11-13 13:29:44,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:29:44,380 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 695 transitions. [2024-11-13 13:29:44,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 13:29:44,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:44,381 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:44,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-11-13 13:29:44,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:44,582 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:44,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:44,582 INFO L85 PathProgramCache]: Analyzing trace with hash -458664730, now seen corresponding path program 1 times [2024-11-13 13:29:44,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:44,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33448103] [2024-11-13 13:29:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:44,583 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 [2024-11-13 13:29:44,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:44,585 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:44,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-13 13:29:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:45,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:29:45,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:45,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:45,295 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 103 treesize of output 31 [2024-11-13 13:29:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-13 13:29:45,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:45,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33448103] [2024-11-13 13:29:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33448103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:45,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:45,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:29:45,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491195899] [2024-11-13 13:29:45,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:45,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:45,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:45,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:45,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:45,331 INFO L87 Difference]: Start difference. First operand 604 states and 695 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:29:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:45,742 INFO L93 Difference]: Finished difference Result 1023 states and 1172 transitions. [2024-11-13 13:29:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:45,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 133 [2024-11-13 13:29:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:45,745 INFO L225 Difference]: With dead ends: 1023 [2024-11-13 13:29:45,745 INFO L226 Difference]: Without dead ends: 552 [2024-11-13 13:29:45,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:29:45,746 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 1 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:45,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 190 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:29:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-13 13:29:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 547. [2024-11-13 13:29:45,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 492 states have (on average 1.0873983739837398) internal successors, (535), 494 states have internal predecessors, (535), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:29:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 611 transitions. [2024-11-13 13:29:45,913 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 611 transitions. Word has length 133 [2024-11-13 13:29:45,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:45,913 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 611 transitions. [2024-11-13 13:29:45,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:29:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 611 transitions. [2024-11-13 13:29:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 13:29:45,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:45,915 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:45,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-11-13 13:29:46,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:46,116 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:46,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:46,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1677166176, now seen corresponding path program 1 times [2024-11-13 13:29:46,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:46,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495665879] [2024-11-13 13:29:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:46,117 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 [2024-11-13 13:29:46,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:46,122 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:46,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-13 13:29:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:46,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 13:29:46,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:47,000 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 [2024-11-13 13:29:47,095 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 16 treesize of output 12 [2024-11-13 13:29:47,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:29:47,124 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 47 treesize of output 24 [2024-11-13 13:29:47,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:47,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 27 [2024-11-13 13:29:47,871 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 65 treesize of output 45 [2024-11-13 13:29:47,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:47,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 45 treesize of output 21 [2024-11-13 13:29:47,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:29:48,049 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 20 treesize of output 21 [2024-11-13 13:29:56,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:56,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 55 [2024-11-13 13:29:56,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:56,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-13 13:29:56,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:56,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 87 [2024-11-13 13:29:56,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:56,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 110 treesize of output 120 [2024-11-13 13:29:57,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:57,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 133 treesize of output 138 [2024-11-13 13:29:59,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:59,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 235 treesize of output 141 [2024-11-13 13:30:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 13:30:00,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:30:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 13:30:01,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:30:01,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495665879] [2024-11-13 13:30:01,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495665879] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:30:01,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:30:01,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 28 [2024-11-13 13:30:01,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523334937] [2024-11-13 13:30:01,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:01,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:30:01,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:30:01,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:30:01,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=638, Unknown=2, NotChecked=0, Total=756 [2024-11-13 13:30:01,372 INFO L87 Difference]: Start difference. First operand 547 states and 611 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:30:03,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:03,494 INFO L93 Difference]: Finished difference Result 813 states and 907 transitions. [2024-11-13 13:30:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:30:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 136 [2024-11-13 13:30:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:03,497 INFO L225 Difference]: With dead ends: 813 [2024-11-13 13:30:03,497 INFO L226 Difference]: Without dead ends: 571 [2024-11-13 13:30:03,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=139, Invalid=915, Unknown=2, NotChecked=0, Total=1056 [2024-11-13 13:30:03,498 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 23 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:03,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 542 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 13:30:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-13 13:30:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 547. [2024-11-13 13:30:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 492 states have (on average 1.0873983739837398) internal successors, (535), 494 states have internal predecessors, (535), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:30:03,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 611 transitions. [2024-11-13 13:30:03,599 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 611 transitions. Word has length 136 [2024-11-13 13:30:03,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:03,600 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 611 transitions. [2024-11-13 13:30:03,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:30:03,600 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 611 transitions. [2024-11-13 13:30:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 13:30:03,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:03,600 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:03,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-11-13 13:30:03,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:30:03,801 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:03,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:03,801 INFO L85 PathProgramCache]: Analyzing trace with hash -997107806, now seen corresponding path program 1 times [2024-11-13 13:30:03,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:30:03,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897175180] [2024-11-13 13:30:03,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:03,802 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 [2024-11-13 13:30:03,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:30:03,804 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:30:03,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-11-13 13:30:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:04,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-13 13:30:04,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:30:04,854 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 [2024-11-13 13:30:04,949 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 16 treesize of output 12 [2024-11-13 13:30:04,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-13 13:30:04,975 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 52 treesize of output 14 [2024-11-13 13:30:04,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-13 13:30:05,384 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 55 treesize of output 37 [2024-11-13 13:30:05,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:05,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 37 treesize of output 17 [2024-11-13 13:30:05,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:30:05,594 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 25 treesize of output 10 [2024-11-13 13:30:14,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:14,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-13 13:30:14,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:14,250 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 55 treesize of output 45 [2024-11-13 13:30:14,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:14,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-13 13:30:14,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 82 [2024-11-13 13:30:15,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:15,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 97 [2024-11-13 13:30:16,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:16,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 120 treesize of output 62 [2024-11-13 13:30:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 139 proven. 17 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 13:30:24,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:30:27,190 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:30:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897175180] [2024-11-13 13:30:27,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897175180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:30:27,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874960513] [2024-11-13 13:30:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:27,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:30:27,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:30:27,193 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:30:27,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-13 13:30:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:27,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-13 13:30:27,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:30:27,666 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 21 treesize of output 9 [2024-11-13 13:30:27,787 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 [2024-11-13 13:30:27,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-13 13:30:28,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:28,507 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 89 treesize of output 69 [2024-11-13 13:30:28,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:28,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 77 [2024-11-13 13:30:33,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:33,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 126 treesize of output 52 [2024-11-13 13:30:47,198 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 48 treesize of output 41 [2024-11-13 13:30:51,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:51,493 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 63 treesize of output 44 [2024-11-13 13:30:51,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:51,537 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 75 treesize of output 68 [2024-11-13 13:30:55,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:55,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 111 [2024-11-13 13:31:00,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:00,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 130 treesize of output 129 [2024-11-13 13:31:16,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:16,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 148 treesize of output 72 [2024-11-13 13:31:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 123 proven. 17 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:31:24,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 13:31:27,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874960513] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:27,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:31:27,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 26] total 48 [2024-11-13 13:31:27,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499568691] [2024-11-13 13:31:27,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:27,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:31:27,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:31:27,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:31:27,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=2487, Unknown=13, NotChecked=0, Total=2970 [2024-11-13 13:31:27,436 INFO L87 Difference]: Start difference. First operand 547 states and 611 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:31:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:32,253 INFO L93 Difference]: Finished difference Result 840 states and 936 transitions. [2024-11-13 13:31:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:31:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 136 [2024-11-13 13:31:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:32,258 INFO L225 Difference]: With dead ends: 840 [2024-11-13 13:31:32,258 INFO L226 Difference]: Without dead ends: 598 [2024-11-13 13:31:32,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 389 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1434 ImplicationChecksByTransitivity, 72.1s TimeCoverageRelationStatistics Valid=511, Invalid=2782, Unknown=13, NotChecked=0, Total=3306 [2024-11-13 13:31:32,259 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 90 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:32,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 246 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 13:31:32,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-13 13:31:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 547. [2024-11-13 13:31:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 492 states have (on average 1.089430894308943) internal successors, (536), 494 states have internal predecessors, (536), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:31:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 612 transitions. [2024-11-13 13:31:32,380 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 612 transitions. Word has length 136 [2024-11-13 13:31:32,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:32,380 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 612 transitions. [2024-11-13 13:31:32,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:31:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 612 transitions. [2024-11-13 13:31:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-13 13:31:32,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:32,382 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:32,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-13 13:31:32,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2024-11-13 13:31:32,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:31:32,783 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:32,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:32,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1729562780, now seen corresponding path program 1 times [2024-11-13 13:31:32,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:31:32,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879017398] [2024-11-13 13:31:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:32,784 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 [2024-11-13 13:31:32,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:31:32,786 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:31:32,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-13 13:31:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:33,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-13 13:31:33,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:33,852 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 [2024-11-13 13:31:34,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:34,546 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 51 treesize of output 21 [2024-11-13 13:31:35,086 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 [2024-11-13 13:31:35,194 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 27 treesize of output 15 [2024-11-13 13:31:37,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:37,325 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 76 treesize of output 38 [2024-11-13 13:31:38,704 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 [2024-11-13 13:31:38,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2024-11-13 13:31:39,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:39,303 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 76 treesize of output 54 [2024-11-13 13:31:39,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 68 [2024-11-13 13:31:40,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:40,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 85 treesize of output 79 [2024-11-13 13:31:44,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:44,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 56 [2024-11-13 13:31:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 139 proven. 282 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-13 13:31:44,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-13 13:31:47,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:31:47,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879017398] [2024-11-13 13:31:47,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879017398] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:47,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:31:47,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [35] total 46 [2024-11-13 13:31:47,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213534889] [2024-11-13 13:31:47,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:47,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:31:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:31:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:31:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1861, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 13:31:47,902 INFO L87 Difference]: Start difference. First operand 547 states and 612 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:31:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:50,480 INFO L93 Difference]: Finished difference Result 799 states and 894 transitions. [2024-11-13 13:31:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:31:50,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 190 [2024-11-13 13:31:50,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:50,484 INFO L225 Difference]: With dead ends: 799 [2024-11-13 13:31:50,484 INFO L226 Difference]: Without dead ends: 557 [2024-11-13 13:31:50,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=245, Invalid=2107, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 13:31:50,485 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 218 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:50,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 277 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:31:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-13 13:31:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2024-11-13 13:31:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 492 states have (on average 1.0873983739837398) internal successors, (535), 494 states have internal predecessors, (535), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:31:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 611 transitions. [2024-11-13 13:31:50,627 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 611 transitions. Word has length 190 [2024-11-13 13:31:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:50,628 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 611 transitions. [2024-11-13 13:31:50,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-13 13:31:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 611 transitions. [2024-11-13 13:31:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-13 13:31:50,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:50,629 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:50,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2024-11-13 13:31:50,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:31:50,830 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:50,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 786439334, now seen corresponding path program 1 times [2024-11-13 13:31:50,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:31:50,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707750917] [2024-11-13 13:31:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:50,831 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 [2024-11-13 13:31:50,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:31:50,833 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:31:50,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18d661d-8a34-4031-b6fb-3b264a5caca1/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-11-13 13:31:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:51,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-13 13:31:51,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:52,003 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 [2024-11-13 13:31:52,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:52,621 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 51 treesize of output 21 [2024-11-13 13:31:53,440 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 48 treesize of output 41 [2024-11-13 13:31:53,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:53,583 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 65 treesize of output 55 [2024-11-13 13:31:53,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 98 [2024-11-13 13:31:54,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:54,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 127 treesize of output 112 [2024-11-13 13:32:00,134 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 182 treesize of output 146 [2024-11-13 13:32:00,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:00,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 146 treesize of output 94 [2024-11-13 13:32:00,870 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 [2024-11-13 13:32:01,755 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 24 [2024-11-13 13:32:08,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:08,417 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 68 treesize of output 67 [2024-11-13 13:32:08,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2024-11-13 13:32:09,662 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:09,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 151 treesize of output 120 [2024-11-13 13:32:11,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 163 [2024-11-13 13:32:12,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:12,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 201 treesize of output 174 [2024-11-13 13:32:12,657 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 205 proven. 252 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-13 13:32:12,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:32:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-13 13:32:31,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:32:31,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707750917] [2024-11-13 13:32:31,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707750917] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:31,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:32:31,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [40] total 54 [2024-11-13 13:32:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466233772] [2024-11-13 13:32:31,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:32:31,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:32:31,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:32:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:32:31,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2473, Unknown=1, NotChecked=0, Total=2862 [2024-11-13 13:32:31,679 INFO L87 Difference]: Start difference. First operand 547 states and 611 transitions. Second operand has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)