./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab1505ae670373b6c322e0c16a487a3f348c7a8c6cd3865cdae18d40153ca8fc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:25:45,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:25:45,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:25:45,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:25:45,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:25:45,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:25:45,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:25:45,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:25:45,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:25:45,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:25:45,691 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:25:45,692 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:25:45,692 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:25:45,693 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:25:45,693 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:25:45,694 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:25:45,694 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:25:45,695 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:25:45,695 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:25:45,696 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:25:45,696 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:25:45,697 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:25:45,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:25:45,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:25:45,699 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:25:45,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:25:45,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:25:45,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:25:45,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:25:45,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:25:45,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:25:45,701 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:25:45,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:25:45,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:25:45,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:25:45,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:25:45,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:25:45,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:25:45,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:25:45,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:25:45,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:25:45,704 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:25:45,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:25:45,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:25:45,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:25:45,705 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:25:45,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:25:45,705 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab1505ae670373b6c322e0c16a487a3f348c7a8c6cd3865cdae18d40153ca8fc [2023-12-02 17:25:45,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:25:45,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:25:45,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:25:45,982 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:25:45,982 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:25:45,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i [2023-12-02 17:25:48,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:25:49,110 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:25:49,111 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i [2023-12-02 17:25:49,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data/ddfaa7d95/1bcbd1192d81494482f783be423dd6ef/FLAG02e45d6d3 [2023-12-02 17:25:49,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data/ddfaa7d95/1bcbd1192d81494482f783be423dd6ef [2023-12-02 17:25:49,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:25:49,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:25:49,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:25:49,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:25:49,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:25:49,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f5cfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49, skipping insertion in model container [2023-12-02 17:25:49,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:25:49,365 WARN L240 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_76e7d823-c360-4dfa-9a9d-761c4ab12daf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i[917,930] [2023-12-02 17:25:49,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:25:49,455 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:25:49,469 WARN L240 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_76e7d823-c360-4dfa-9a9d-761c4ab12daf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i[917,930] [2023-12-02 17:25:49,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:25:49,533 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:25:49,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49 WrapperNode [2023-12-02 17:25:49,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:25:49,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:25:49,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:25:49,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:25:49,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,596 INFO L138 Inliner]: procedures = 29, calls = 146, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 442 [2023-12-02 17:25:49,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:25:49,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:25:49,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:25:49,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:25:49,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:25:49,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:25:49,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:25:49,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:25:49,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (1/1) ... [2023-12-02 17:25:49,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:25:49,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:25:49,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:25:49,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:25:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:25:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:25:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 17:25:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 17:25:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:25:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 17:25:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:25:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:25:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:25:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:25:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:25:49,863 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:25:49,865 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:25:50,269 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:25:50,823 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:25:50,823 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:25:50,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:25:50 BoogieIcfgContainer [2023-12-02 17:25:50,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:25:50,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:25:50,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:25:50,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:25:50,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:25:49" (1/3) ... [2023-12-02 17:25:50,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79afe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:25:50, skipping insertion in model container [2023-12-02 17:25:50,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:49" (2/3) ... [2023-12-02 17:25:50,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79afe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:25:50, skipping insertion in model container [2023-12-02 17:25:50,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:25:50" (3/3) ... [2023-12-02 17:25:50,834 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-13.i [2023-12-02 17:25:50,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:25:50,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:25:50,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:25:50,927 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@3fad5827, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:25:50,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:25:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:25:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 17:25:50,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:25:50,940 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:25:50,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:25:50,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:25:50,945 INFO L85 PathProgramCache]: Analyzing trace with hash 12702543, now seen corresponding path program 1 times [2023-12-02 17:25:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:25:50,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127296661] [2023-12-02 17:25:50,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:25:50,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:25:51,172 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 17:25:51,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258673446] [2023-12-02 17:25:51,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:25:51,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:25:51,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:25:51,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:25:51,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:25:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:25:52,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 17:25:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:25:52,989 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 17:25:52,991 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 17:25:52,992 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 17:25:53,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:25:53,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 17:25:53,198 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 17:25:53,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:25:53,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 17:25:53,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 17:25:53,267 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 17:25:53,269 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 17:25:53,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-12-02 17:25:53,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-12-02 17:25:53,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 17:25:53,270 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-12-02 17:25:53,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 17:25:53,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated [2023-12-02 17:25:53,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-12-02 17:25:53,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated [2023-12-02 17:25:53,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-12-02 17:25:53,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-12-02 17:25:53,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-12-02 17:25:53,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-12-02 17:25:53,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-12-02 17:25:53,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-12-02 17:25:53,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 17:25:53,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-12-02 17:25:53,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 17:25:53,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 17:25:53,275 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-12-02 17:25:53,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-12-02 17:25:53,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 17:25:53,277 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-12-02 17:25:53,277 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-12-02 17:25:53,277 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-12-02 17:25:53,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-12-02 17:25:53,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-12-02 17:25:53,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 17:25:53,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 17:25:53,279 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 17:25:53,279 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-12-02 17:25:53,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 17:25:53,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 17:25:53,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 17:25:53,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated [2023-12-02 17:25:53,281 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated [2023-12-02 17:25:53,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-12-02 17:25:53,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-12-02 17:25:53,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated [2023-12-02 17:25:53,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 17:25:53,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 17:25:53,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-12-02 17:25:53,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated [2023-12-02 17:25:53,284 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 17:25:53,284 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 17:25:53,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 17:25:53,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated [2023-12-02 17:25:53,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated [2023-12-02 17:25:53,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 17:25:53,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 17:25:53,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 17:25:53,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 17:25:53,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated [2023-12-02 17:25:53,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated [2023-12-02 17:25:53,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-12-02 17:25:53,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated [2023-12-02 17:25:53,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-12-02 17:25:53,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-12-02 17:25:53,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-12-02 17:25:53,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-12-02 17:25:53,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-12-02 17:25:53,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-12-02 17:25:53,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-12-02 17:25:53,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-12-02 17:25:53,295 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-12-02 17:25:53,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 17:25:53,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 17:25:53,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated [2023-12-02 17:25:53,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated [2023-12-02 17:25:53,299 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-12-02 17:25:53,300 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-12-02 17:25:53,300 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-12-02 17:25:53,301 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated [2023-12-02 17:25:53,301 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-12-02 17:25:53,302 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-12-02 17:25:53,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:25:53 BoogieIcfgContainer [2023-12-02 17:25:53,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:25:53,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:25:53,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:25:53,328 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:25:53,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:25:50" (3/4) ... [2023-12-02 17:25:53,331 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:25:53,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:25:53,334 INFO L158 Benchmark]: Toolchain (without parser) took 4191.07ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 117.1MB in the beginning and 83.4MB in the end (delta: 33.7MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,335 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:25:53,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.61ms. Allocated memory is still 157.3MB. Free memory was 116.5MB in the beginning and 101.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.87ms. Allocated memory is still 157.3MB. Free memory was 101.7MB in the beginning and 98.2MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,337 INFO L158 Benchmark]: Boogie Preprocessor took 46.08ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 95.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,338 INFO L158 Benchmark]: RCFGBuilder took 1181.38ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 95.0MB in the beginning and 92.9MB in the end (delta: 2.1MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,338 INFO L158 Benchmark]: TraceAbstraction took 2499.63ms. Allocated memory is still 203.4MB. Free memory was 91.8MB in the beginning and 84.4MB in the end (delta: 7.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,339 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 203.4MB. Free memory was 84.4MB in the beginning and 83.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:25:53,343 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.61ms. Allocated memory is still 157.3MB. Free memory was 116.5MB in the beginning and 101.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.87ms. Allocated memory is still 157.3MB. Free memory was 101.7MB in the beginning and 98.2MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.08ms. Allocated memory is still 157.3MB. Free memory was 98.2MB in the beginning and 95.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1181.38ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 95.0MB in the beginning and 92.9MB in the end (delta: 2.1MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2499.63ms. Allocated memory is still 203.4MB. Free memory was 91.8MB in the beginning and 84.4MB in the end (delta: 7.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 203.4MB. Free memory was 84.4MB in the beginning and 83.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem82 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 1 }; [L25] unsigned char* BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer = &(BOOL_unsigned_char_Array_0[0]); [L26-L28] double double_Array_0[2][2] = { {128.4, 3.8}, {50.2, 25.1} }; [L29] double* double_Array_0_arraydouble_Array_0arrayVar0_Pointer = &(double_Array_0[0][0]); [L30] double* double_Array_0_arraydouble_Array_0arrayVar1_Pointer = &(double_Array_0[1][0]); [L31] double* double_Array_0_arraydouble_Array_0arrayVar2_Pointer = &(double_Array_0[0][1]); [L32] double* double_Array_0_arraydouble_Array_0arrayVar3_Pointer = &(double_Array_0[1][1]); [L33-L35] signed char signed_char_Array_0[2][2] = { {64, 4}, {0, 16} }; [L36] signed char* signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer = &(signed_char_Array_0[0][0]); [L37] signed char* signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer = &(signed_char_Array_0[1][0]); [L38] signed char* signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer = &(signed_char_Array_0[0][1]); [L39] signed char* signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer = &(signed_char_Array_0[1][1]); [L40-L42] unsigned char unsigned_char_Array_0[1] = { 16 }; [L43] unsigned char* unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer = &(unsigned_char_Array_0[0]); [L44-L46] unsigned short int unsigned_short_int_Array_0[3] = { 2, 16, 25 }; [L47] unsigned short int* unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer = &(unsigned_short_int_Array_0[0]); [L48] unsigned short int* unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer = &(unsigned_short_int_Array_0[1]); [L49] unsigned short int* unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer = &(unsigned_short_int_Array_0[2]); [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] FCALL updateLastVariables() [L111] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L78] double_Array_0[0][0] = __VERIFIER_nondet_double() [L79] EXPR double_Array_0[0][0] [L79] EXPR double_Array_0[0][0] >= 0.0F && double_Array_0[0][0] <= -1.0e-20F [L79] EXPR double_Array_0[0][0] [L79] EXPR double_Array_0[0][0] >= 0.0F && double_Array_0[0][0] <= -1.0e-20F [L79] EXPR (double_Array_0[0][0] >= 0.0F && double_Array_0[0][0] <= -1.0e-20F) || (double_Array_0[0][0] <= 9223372.036854776000e+12F && double_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L79] CALL assume_abort_if_not((double_Array_0[0][0] >= 0.0F && double_Array_0[0][0] <= -1.0e-20F) || (double_Array_0[0][0] <= 9223372.036854776000e+12F && double_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((double_Array_0[0][0] >= 0.0F && double_Array_0[0][0] <= -1.0e-20F) || (double_Array_0[0][0] <= 9223372.036854776000e+12F && double_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L80] double_Array_0[1][0] = __VERIFIER_nondet_double() [L81] EXPR double_Array_0[1][0] [L81] EXPR double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F [L81] EXPR (double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854776000e+12F && double_Array_0[1][0] >= 1.0e-20F ) [L81] EXPR double_Array_0[1][0] [L81] EXPR double_Array_0[1][0] <= 9223372.036854776000e+12F && double_Array_0[1][0] >= 1.0e-20F [L81] EXPR double_Array_0[1][0] [L81] EXPR double_Array_0[1][0] <= 9223372.036854776000e+12F && double_Array_0[1][0] >= 1.0e-20F [L81] EXPR (double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854776000e+12F && double_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L81] CALL assume_abort_if_not((double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854776000e+12F && double_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854776000e+12F && double_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L82] double_Array_0[0][1] = __VERIFIER_nondet_double() [L83] EXPR double_Array_0[0][1] [L83] EXPR double_Array_0[0][1] >= -922337.2036854776000e+13F && double_Array_0[0][1] <= -1.0e-20F [L83] EXPR double_Array_0[0][1] [L83] EXPR double_Array_0[0][1] >= -922337.2036854776000e+13F && double_Array_0[0][1] <= -1.0e-20F [L83] EXPR (double_Array_0[0][1] >= -922337.2036854776000e+13F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854776000e+12F && double_Array_0[0][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L83] CALL assume_abort_if_not((double_Array_0[0][1] >= -922337.2036854776000e+13F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854776000e+12F && double_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((double_Array_0[0][1] >= -922337.2036854776000e+13F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854776000e+12F && double_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L84] double_Array_0[1][1] = __VERIFIER_nondet_double() [L85] EXPR double_Array_0[1][1] [L85] EXPR double_Array_0[1][1] >= -922337.2036854776000e+13F && double_Array_0[1][1] <= -1.0e-20F [L85] EXPR double_Array_0[1][1] [L85] EXPR double_Array_0[1][1] >= -922337.2036854776000e+13F && double_Array_0[1][1] <= -1.0e-20F [L85] EXPR (double_Array_0[1][1] >= -922337.2036854776000e+13F && double_Array_0[1][1] <= -1.0e-20F) || (double_Array_0[1][1] <= 9223372.036854776000e+12F && double_Array_0[1][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L85] CALL assume_abort_if_not((double_Array_0[1][1] >= -922337.2036854776000e+13F && double_Array_0[1][1] <= -1.0e-20F) || (double_Array_0[1][1] <= 9223372.036854776000e+12F && double_Array_0[1][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((double_Array_0[1][1] >= -922337.2036854776000e+13F && double_Array_0[1][1] <= -1.0e-20F) || (double_Array_0[1][1] <= 9223372.036854776000e+12F && double_Array_0[1][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L86] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L87] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L87] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(signed_char_Array_0[0][0] >= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L88] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L88] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L89] signed_char_Array_0[1][0] = __VERIFIER_nondet_char() [L90] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L90] CALL assume_abort_if_not(signed_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(signed_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L91] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L91] CALL assume_abort_if_not(signed_char_Array_0[1][0] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(signed_char_Array_0[1][0] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L92] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L93] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L93] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L94] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L94] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L95] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L96] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L96] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L97] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L97] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L98] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L98] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=1, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(unsigned_short_int_Array_0[1] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L111] RET updateVariables() [L112] CALL step() [L53] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar0_Pointer) [L53] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar1_Pointer) [L53] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar2_Pointer) [L53] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar3_Pointer) [L53] EXPR ((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))) [L53] COND FALSE !((((*(double_Array_0_arraydouble_Array_0arrayVar0_Pointer)) - (*(double_Array_0_arraydouble_Array_0arrayVar1_Pointer))) + (*(double_Array_0_arraydouble_Array_0arrayVar2_Pointer))) <= (256.625 * ((((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))))))) [L56] EXPR \read(*BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer) [L56] COND FALSE !((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer))) [L59] EXPR \read(*unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer) [L59] ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer)))) [L59] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L59] EXPR \read(*unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer) [L59] ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer)))) [L59] COND FALSE !(((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) [L62] (*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) = 5 [L64] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L64] unsigned char stepLocal_1 = (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)); [L65] EXPR \read(*BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer) [L65] unsigned char stepLocal_0 = (*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)); [L66] stepLocal_0 || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) [L66] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L66] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L66] stepLocal_0 || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) [L66] COND TRUE stepLocal_0 || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) [L67] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer) [L67] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer) [L67] COND TRUE stepLocal_1 < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16) [L68] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer) [L68] EXPR (((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32) [L68] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer) [L68] EXPR (((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32) [L68] (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) = (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))) [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR \read(*BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer) [L103] EXPR (*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1 [L103] EXPR ((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5))) [L103] EXPR \read(*unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer) [L103] EXPR ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer)))) [L103] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L103] EXPR \read(*unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer) [L103] EXPR ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer)))) [L103] EXPR (((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)) [L103] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer) [L103] EXPR (((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)) [L103] EXPR ((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5))) [L103] EXPR (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)))) && (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))))))) [L103] EXPR \read(*BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer) [L103] EXPR (*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) [L103] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L103] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L103] EXPR (*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) [L103] EXPR ((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) [L103] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L103] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer) [L103] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer) [L103] EXPR ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1 [L103] EXPR \read(*unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer) [L103] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer) [L103] EXPR (((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32) [L103] EXPR \read(*signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer) [L103] EXPR (((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32) [L103] EXPR ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1 [L103] EXPR ((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) [L103] EXPR (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)))) && (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))))))) [L103] EXPR ((((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)))) && (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))))) && (((((*(double_Array_0_arraydouble_Array_0arrayVar0_Pointer)) - (*(double_Array_0_arraydouble_Array_0arrayVar1_Pointer))) + (*(double_Array_0_arraydouble_Array_0arrayVar2_Pointer))) <= (256.625 * ((((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))))))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) [L103] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar0_Pointer) [L103] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar1_Pointer) [L103] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar2_Pointer) [L103] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar3_Pointer) [L103] EXPR ((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))) [L103] EXPR \read(*double_Array_0_arraydouble_Array_0arrayVar3_Pointer) [L103] EXPR ((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))) [L103] EXPR ((((*(double_Array_0_arraydouble_Array_0arrayVar0_Pointer)) - (*(double_Array_0_arraydouble_Array_0arrayVar1_Pointer))) + (*(double_Array_0_arraydouble_Array_0arrayVar2_Pointer))) <= (256.625 * ((((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))))))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1 [L103] EXPR \read(*unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer) [L103] EXPR ((((*(double_Array_0_arraydouble_Array_0arrayVar0_Pointer)) - (*(double_Array_0_arraydouble_Array_0arrayVar1_Pointer))) + (*(double_Array_0_arraydouble_Array_0arrayVar2_Pointer))) <= (256.625 * ((((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))))))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1 [L103] EXPR ((((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)))) && (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))))) && (((((*(double_Array_0_arraydouble_Array_0arrayVar0_Pointer)) - (*(double_Array_0_arraydouble_Array_0arrayVar1_Pointer))) + (*(double_Array_0_arraydouble_Array_0arrayVar2_Pointer))) <= (256.625 * ((((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))))))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) [L103-L104] return ((((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == ((unsigned short int) (((((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) > ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))) : 1) && ((((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer)) == 16) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (10 / (*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer))))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) (*(signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer)))) : ((*(signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer)) == ((signed char) 5)))) && (((*(BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer)) || ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) >= (*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? (((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) < (((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer)) - (*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) - 16)) ? ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) > (32)) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer))) : (32))))) : 1) : ((*(unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer)) == ((unsigned short int) (((((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) < ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)))) ? ((*(signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer))) : ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer))))))))) && (((((*(double_Array_0_arraydouble_Array_0arrayVar0_Pointer)) - (*(double_Array_0_arraydouble_Array_0arrayVar1_Pointer))) + (*(double_Array_0_arraydouble_Array_0arrayVar2_Pointer))) <= (256.625 * ((((1.875) > ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer)))) ? (1.875) : ((*(double_Array_0_arraydouble_Array_0arrayVar3_Pointer))))))) ? ((*(unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer)) == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, double_Array_0_arraydouble_Array_0arrayVar0_Pointer={5:0}, double_Array_0_arraydouble_Array_0arrayVar1_Pointer={5:16}, double_Array_0_arraydouble_Array_0arrayVar2_Pointer={5:8}, double_Array_0_arraydouble_Array_0arrayVar3_Pointer={5:24}, isInitial=1, signed_char_Array_0={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer={6:0}, signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer={6:2}, signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer={6:1}, signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer={6:3}, unsigned_char_Array_0={7:0}, unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer={7:0}, unsigned_short_int_Array_0={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer={8:0}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer={8:2}, unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer={8:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2023-12-02 17:25:53,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab1505ae670373b6c322e0c16a487a3f348c7a8c6cd3865cdae18d40153ca8fc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:25:55,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:25:55,391 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 17:25:55,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:25:55,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:25:55,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:25:55,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:25:55,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:25:55,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:25:55,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:25:55,427 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:25:55,428 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:25:55,428 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:25:55,429 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:25:55,430 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:25:55,430 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:25:55,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:25:55,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:25:55,433 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:25:55,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:25:55,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:25:55,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:25:55,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:25:55,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:25:55,436 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:25:55,436 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:25:55,437 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:25:55,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:25:55,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:25:55,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:25:55,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:25:55,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:25:55,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:25:55,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:25:55,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:25:55,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:25:55,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:25:55,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:25:55,440 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:25:55,441 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:25:55,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:25:55,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:25:55,441 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:25:55,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:25:55,442 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab1505ae670373b6c322e0c16a487a3f348c7a8c6cd3865cdae18d40153ca8fc [2023-12-02 17:25:55,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:25:55,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:25:55,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:25:55,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:25:55,823 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:25:55,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i [2023-12-02 17:25:58,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:25:59,018 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:25:59,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i [2023-12-02 17:25:59,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data/2004727da/09c12bfb322b4c3b8fbbb66e1b83e382/FLAG2bc83823b [2023-12-02 17:25:59,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/data/2004727da/09c12bfb322b4c3b8fbbb66e1b83e382 [2023-12-02 17:25:59,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:25:59,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:25:59,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:25:59,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:25:59,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:25:59,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16460b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59, skipping insertion in model container [2023-12-02 17:25:59,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:25:59,220 WARN L240 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_76e7d823-c360-4dfa-9a9d-761c4ab12daf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i[917,930] [2023-12-02 17:25:59,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:25:59,316 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:25:59,328 WARN L240 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_76e7d823-c360-4dfa-9a9d-761c4ab12daf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-13.i[917,930] [2023-12-02 17:25:59,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:25:59,402 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:25:59,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59 WrapperNode [2023-12-02 17:25:59,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:25:59,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:25:59,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:25:59,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:25:59,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,475 INFO L138 Inliner]: procedures = 33, calls = 146, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2023-12-02 17:25:59,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:25:59,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:25:59,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:25:59,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:25:59,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:25:59,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:25:59,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:25:59,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:25:59,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (1/1) ... [2023-12-02 17:25:59,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:25:59,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:25:59,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:25:59,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:25:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:25:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 17:25:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 17:25:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 17:25:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 17:25:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:25:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 17:25:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 17:25:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:25:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:25:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:25:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:25:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 17:25:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 17:25:59,795 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:25:59,796 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:26:08,682 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:26:08,763 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:26:08,764 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:26:08,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:26:08 BoogieIcfgContainer [2023-12-02 17:26:08,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:26:08,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:26:08,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:26:08,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:26:08,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:25:59" (1/3) ... [2023-12-02 17:26:08,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715868fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:26:08, skipping insertion in model container [2023-12-02 17:26:08,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:25:59" (2/3) ... [2023-12-02 17:26:08,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715868fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:26:08, skipping insertion in model container [2023-12-02 17:26:08,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:26:08" (3/3) ... [2023-12-02 17:26:08,773 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-13.i [2023-12-02 17:26:08,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:26:08,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:26:08,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:26:08,841 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@6925bcf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:26:08,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:26:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 87 states have (on average 1.4827586206896552) internal successors, (129), 88 states have internal predecessors, (129), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:26:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 17:26:08,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:26:08,860 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:26:08,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:26:08,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:26:08,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2019246980, now seen corresponding path program 1 times [2023-12-02 17:26:08,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:26:08,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899518989] [2023-12-02 17:26:08,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:26:08,880 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 [2023-12-02 17:26:08,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:26:08,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:26:08,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:26:09,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:26:09,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:26:09,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-12-02 17:26:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:26:09,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:26:09,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:26:09,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899518989] [2023-12-02 17:26:09,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899518989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:26:09,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:26:09,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:26:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805267716] [2023-12-02 17:26:09,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:26:09,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:26:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:26:09,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:26:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:26:09,797 INFO L87 Difference]: Start difference. First operand has 105 states, 87 states have (on average 1.4827586206896552) internal successors, (129), 88 states have internal predecessors, (129), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:26:12,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:16,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:18,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:21,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:26:24,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:26:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:26:24,222 INFO L93 Difference]: Finished difference Result 264 states and 420 transitions. [2023-12-02 17:26:24,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:26:24,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2023-12-02 17:26:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:26:24,239 INFO L225 Difference]: With dead ends: 264 [2023-12-02 17:26:24,239 INFO L226 Difference]: Without dead ends: 160 [2023-12-02 17:26:24,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:26:24,248 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 119 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:26:24,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 510 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 5 Unknown, 0 Unchecked, 14.0s Time] [2023-12-02 17:26:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-02 17:26:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 107. [2023-12-02 17:26:24,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 90 states have (on average 1.4333333333333333) internal successors, (129), 90 states have internal predecessors, (129), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:26:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 159 transitions. [2023-12-02 17:26:24,303 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 159 transitions. Word has length 126 [2023-12-02 17:26:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:26:24,305 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 159 transitions. [2023-12-02 17:26:24,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:26:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 159 transitions. [2023-12-02 17:26:24,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 17:26:24,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:26:24,310 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:26:24,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Forceful destruction successful, exit code 0 [2023-12-02 17:26:24,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:26:24,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:26:24,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:26:24,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1008129730, now seen corresponding path program 1 times [2023-12-02 17:26:24,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:26:24,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546541465] [2023-12-02 17:26:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:26:24,514 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 [2023-12-02 17:26:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:26:24,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:26:24,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:26:25,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:26:25,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:26:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:26:25,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:26:25,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:26:25,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546541465] [2023-12-02 17:26:25,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546541465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:26:25,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:26:25,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:26:25,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702057792] [2023-12-02 17:26:25,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:26:25,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:26:25,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:26:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:26:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:26:25,142 INFO L87 Difference]: Start difference. First operand 107 states and 159 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:26:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:26:25,235 INFO L93 Difference]: Finished difference Result 235 states and 351 transitions. [2023-12-02 17:26:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:26:25,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2023-12-02 17:26:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:26:25,239 INFO L225 Difference]: With dead ends: 235 [2023-12-02 17:26:25,239 INFO L226 Difference]: Without dead ends: 129 [2023-12-02 17:26:25,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:26:25,242 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 41 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:26:25,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 483 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:26:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-02 17:26:25,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 109. [2023-12-02 17:26:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:26:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2023-12-02 17:26:25,255 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 126 [2023-12-02 17:26:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:26:25,256 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2023-12-02 17:26:25,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:26:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2023-12-02 17:26:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-02 17:26:25,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:26:25,258 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:26:25,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 17:26:25,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:26:25,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:26:25,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:26:25,460 INFO L85 PathProgramCache]: Analyzing trace with hash 904457387, now seen corresponding path program 1 times [2023-12-02 17:26:25,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:26:25,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124674990] [2023-12-02 17:26:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:26:25,461 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 [2023-12-02 17:26:25,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:26:25,462 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:26:25,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:26:26,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:26:26,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:26:26,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:26:26,187 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 155 treesize of output 65 [2023-12-02 17:26:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-02 17:26:26,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:26:26,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:26:26,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124674990] [2023-12-02 17:26:26,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124674990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:26:26,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:26:26,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:26:26,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167075853] [2023-12-02 17:26:26,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:26:26,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:26:26,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:26:26,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:26:26,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:26:26,238 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:26:29,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:31,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:33,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:35,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:36,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:39,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:41,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:41,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:26:41,623 INFO L93 Difference]: Finished difference Result 223 states and 330 transitions. [2023-12-02 17:26:41,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:26:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2023-12-02 17:26:41,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:26:41,626 INFO L225 Difference]: With dead ends: 223 [2023-12-02 17:26:41,627 INFO L226 Difference]: Without dead ends: 115 [2023-12-02 17:26:41,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:26:41,629 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 157 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:26:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 414 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 5 Unknown, 0 Unchecked, 15.3s Time] [2023-12-02 17:26:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-02 17:26:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2023-12-02 17:26:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:26:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2023-12-02 17:26:41,646 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 128 [2023-12-02 17:26:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:26:41,646 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2023-12-02 17:26:41,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:26:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2023-12-02 17:26:41,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 17:26:41,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:26:41,650 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:26:41,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:41,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:26:41,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:26:41,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:26:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1043645285, now seen corresponding path program 1 times [2023-12-02 17:26:41,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:26:41,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400855591] [2023-12-02 17:26:41,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:26:41,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:26:41,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:26:41,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:26:41,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:26:42,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:26:42,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:26:42,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:26:42,670 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 173 treesize of output 65 [2023-12-02 17:26:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 17:26:42,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:26:42,716 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:26:42,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400855591] [2023-12-02 17:26:42,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400855591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:26:42,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:26:42,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:26:42,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781174289] [2023-12-02 17:26:42,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:26:42,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:26:42,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:26:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:26:42,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:26:42,719 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:26:45,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:47,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:49,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:52,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:26:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:26:52,750 INFO L93 Difference]: Finished difference Result 223 states and 328 transitions. [2023-12-02 17:26:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:26:52,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2023-12-02 17:26:52,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:26:52,753 INFO L225 Difference]: With dead ends: 223 [2023-12-02 17:26:52,754 INFO L226 Difference]: Without dead ends: 115 [2023-12-02 17:26:52,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:26:52,756 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 146 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:26:52,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 410 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 17:26:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-02 17:26:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2023-12-02 17:26:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 92 states have (on average 1.4021739130434783) internal successors, (129), 92 states have internal predecessors, (129), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:26:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2023-12-02 17:26:52,769 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 130 [2023-12-02 17:26:52,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:26:52,769 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2023-12-02 17:26:52,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:26:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2023-12-02 17:26:52,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 17:26:52,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:26:52,773 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:26:52,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:52,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:26:52,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:26:52,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:26:52,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1945467925, now seen corresponding path program 1 times [2023-12-02 17:26:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:26:52,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581734198] [2023-12-02 17:26:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:26:52,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:26:52,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:26:52,976 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:26:52,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:26:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:26:53,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 17:26:53,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:26:54,680 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 18 treesize of output 13 [2023-12-02 17:26:55,173 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 18 treesize of output 13 [2023-12-02 17:26:55,661 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 18 treesize of output 13 [2023-12-02 17:26:56,040 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 18 treesize of output 13 [2023-12-02 17:26:56,381 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 18 treesize of output 13 [2023-12-02 17:26:56,781 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 18 treesize of output 13 [2023-12-02 17:26:57,149 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 18 treesize of output 13 [2023-12-02 17:26:57,489 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 18 treesize of output 13 [2023-12-02 17:26:57,917 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 18 treesize of output 13 [2023-12-02 17:26:58,113 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 17 treesize of output 12 [2023-12-02 17:26:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 349 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-02 17:26:58,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:26:58,252 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array (_ BitVec 32) (_ BitVec 32)))) (= ((_ extract 7 0) (select (select (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_140) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset)) (_ bv0 8))) is different from false [2023-12-02 17:26:58,415 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_139 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_139))) (or (not (= ((_ extract 7 0) (select (select .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset)) (_ bv0 8))) (= ((_ extract 7 0) (select (select (store .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_140) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset)) (_ bv0 8))))) is different from false [2023-12-02 17:26:58,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:26:58,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581734198] [2023-12-02 17:26:58,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581734198] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:26:58,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [788242850] [2023-12-02 17:26:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:26:58,478 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:26:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:26:58,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:26:58,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 17:27:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:27:00,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:27:00,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:27:01,091 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 17 treesize of output 12 [2023-12-02 17:27:01,197 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:27:01,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:27:01,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [788242850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:27:01,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:27:01,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 18 [2023-12-02 17:27:01,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812555821] [2023-12-02 17:27:01,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:27:01,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:27:01,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:27:01,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:27:01,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=369, Unknown=2, NotChecked=82, Total=552 [2023-12-02 17:27:01,201 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:03,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:05,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:08,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:10,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:11,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:13,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:27:14,513 INFO L93 Difference]: Finished difference Result 261 states and 382 transitions. [2023-12-02 17:27:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:27:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 132 [2023-12-02 17:27:14,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:27:14,516 INFO L225 Difference]: With dead ends: 261 [2023-12-02 17:27:14,516 INFO L226 Difference]: Without dead ends: 153 [2023-12-02 17:27:14,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=402, Unknown=2, NotChecked=86, Total=600 [2023-12-02 17:27:14,518 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 139 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:27:14,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 315 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 444 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 17:27:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-02 17:27:14,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 114. [2023-12-02 17:27:14,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 97 states have (on average 1.402061855670103) internal successors, (136), 97 states have internal predecessors, (136), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:27:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 166 transitions. [2023-12-02 17:27:14,532 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 166 transitions. Word has length 132 [2023-12-02 17:27:14,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:27:14,533 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 166 transitions. [2023-12-02 17:27:14,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:14,534 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 166 transitions. [2023-12-02 17:27:14,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 17:27:14,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:27:14,536 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:27:14,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 17:27:14,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:27:14,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:27:14,937 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:27:14,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:27:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1328431017, now seen corresponding path program 1 times [2023-12-02 17:27:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:27:14,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446029602] [2023-12-02 17:27:14,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:27:14,939 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 [2023-12-02 17:27:14,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:27:14,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:27:14,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:27:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:27:15,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:27:15,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:27:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:27:15,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:27:15,549 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:27:15,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446029602] [2023-12-02 17:27:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446029602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:27:15,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:27:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:27:15,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888632474] [2023-12-02 17:27:15,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:27:15,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:27:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:27:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:27:15,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:27:15,552 INFO L87 Difference]: Start difference. First operand 114 states and 166 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:17,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:19,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:23,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:25,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:26,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:27:26,794 INFO L93 Difference]: Finished difference Result 278 states and 406 transitions. [2023-12-02 17:27:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:27:26,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 132 [2023-12-02 17:27:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:27:26,796 INFO L225 Difference]: With dead ends: 278 [2023-12-02 17:27:26,797 INFO L226 Difference]: Without dead ends: 165 [2023-12-02 17:27:26,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:27:26,798 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 111 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:27:26,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 431 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2023-12-02 17:27:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-02 17:27:26,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 116. [2023-12-02 17:27:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 99 states have (on average 1.393939393939394) internal successors, (138), 99 states have internal predecessors, (138), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:27:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2023-12-02 17:27:26,806 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 168 transitions. Word has length 132 [2023-12-02 17:27:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:27:26,807 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 168 transitions. [2023-12-02 17:27:26,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 168 transitions. [2023-12-02 17:27:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:27:26,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:27:26,809 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:27:26,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:27:27,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:27:27,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:27:27,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:27:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash -962347387, now seen corresponding path program 1 times [2023-12-02 17:27:27,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:27:27,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992557338] [2023-12-02 17:27:27,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:27:27,011 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 [2023-12-02 17:27:27,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:27:27,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:27:27,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 17:27:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:27:27,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:27:27,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:27:31,386 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 [2023-12-02 17:27:31,868 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 [2023-12-02 17:27:32,002 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 17 treesize of output 17 [2023-12-02 17:27:32,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2023-12-02 17:27:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-12-02 17:27:32,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:27:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:27:32,511 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:27:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992557338] [2023-12-02 17:27:32,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992557338] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 17:27:32,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:27:32,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2023-12-02 17:27:32,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347419848] [2023-12-02 17:27:32,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:27:32,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:27:32,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:27:32,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:27:32,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-02 17:27:32,513 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:34,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:37,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:39,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:42,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:43,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:43,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:27:43,375 INFO L93 Difference]: Finished difference Result 296 states and 428 transitions. [2023-12-02 17:27:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:27:43,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:27:43,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:27:43,404 INFO L225 Difference]: With dead ends: 296 [2023-12-02 17:27:43,404 INFO L226 Difference]: Without dead ends: 181 [2023-12-02 17:27:43,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-02 17:27:43,406 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 160 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:27:43,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 567 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2023-12-02 17:27:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-02 17:27:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 139. [2023-12-02 17:27:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 122 states have (on average 1.3852459016393444) internal successors, (169), 122 states have internal predecessors, (169), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:27:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 199 transitions. [2023-12-02 17:27:43,416 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 199 transitions. Word has length 133 [2023-12-02 17:27:43,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:27:43,417 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 199 transitions. [2023-12-02 17:27:43,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:43,417 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 199 transitions. [2023-12-02 17:27:43,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:27:43,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:27:43,419 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:27:43,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 17:27:43,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:27:43,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:27:43,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:27:43,620 INFO L85 PathProgramCache]: Analyzing trace with hash -282289017, now seen corresponding path program 1 times [2023-12-02 17:27:43,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:27:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976681793] [2023-12-02 17:27:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:27:43,621 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 [2023-12-02 17:27:43,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:27:43,622 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:27:43,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:27:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:27:44,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:27:44,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:27:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:27:44,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:27:44,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:27:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976681793] [2023-12-02 17:27:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976681793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:27:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:27:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:27:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931367599] [2023-12-02 17:27:44,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:27:44,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:27:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:27:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:27:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:27:44,171 INFO L87 Difference]: Start difference. First operand 139 states and 199 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:44,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:27:44,247 INFO L93 Difference]: Finished difference Result 297 states and 428 transitions. [2023-12-02 17:27:44,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:27:44,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:27:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:27:44,249 INFO L225 Difference]: With dead ends: 297 [2023-12-02 17:27:44,249 INFO L226 Difference]: Without dead ends: 159 [2023-12-02 17:27:44,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:27:44,250 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 27 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:27:44,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 298 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:27:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-02 17:27:44,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 141. [2023-12-02 17:27:44,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 124 states have (on average 1.3790322580645162) internal successors, (171), 124 states have internal predecessors, (171), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:27:44,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 201 transitions. [2023-12-02 17:27:44,259 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 201 transitions. Word has length 133 [2023-12-02 17:27:44,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:27:44,259 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 201 transitions. [2023-12-02 17:27:44,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:44,260 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 201 transitions. [2023-12-02 17:27:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:27:44,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:27:44,262 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:27:44,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-02 17:27:44,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:27:44,463 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:27:44,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:27:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash -675316027, now seen corresponding path program 1 times [2023-12-02 17:27:44,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:27:44,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426919897] [2023-12-02 17:27:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:27:44,464 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 [2023-12-02 17:27:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:27:44,465 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:27:44,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:27:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:27:45,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:27:45,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:27:46,001 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 [2023-12-02 17:27:46,127 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 18 treesize of output 13 [2023-12-02 17:27:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:27:46,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:27:46,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:27:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426919897] [2023-12-02 17:27:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426919897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:27:46,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:27:46,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:27:46,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986078122] [2023-12-02 17:27:46,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:27:46,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:27:46,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:27:46,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:27:46,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:27:46,236 INFO L87 Difference]: Start difference. First operand 141 states and 201 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:27:48,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:51,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:52,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:54,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:56,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:27:58,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:00,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:02,272 INFO L93 Difference]: Finished difference Result 365 states and 522 transitions. [2023-12-02 17:28:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:28:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:28:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:02,303 INFO L225 Difference]: With dead ends: 365 [2023-12-02 17:28:02,303 INFO L226 Difference]: Without dead ends: 225 [2023-12-02 17:28:02,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:28:02,304 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 297 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:02,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 427 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 317 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 17:28:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-02 17:28:02,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 162. [2023-12-02 17:28:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 145 states have (on average 1.3655172413793104) internal successors, (198), 145 states have internal predecessors, (198), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:28:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 228 transitions. [2023-12-02 17:28:02,315 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 228 transitions. Word has length 133 [2023-12-02 17:28:02,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:02,315 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 228 transitions. [2023-12-02 17:28:02,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:02,315 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 228 transitions. [2023-12-02 17:28:02,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:28:02,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:02,317 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:28:02,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:28:02,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:28:02,518 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:02,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash -394874512, now seen corresponding path program 1 times [2023-12-02 17:28:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:28:02,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360188072] [2023-12-02 17:28:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:02,519 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 [2023-12-02 17:28:02,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:28:02,520 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:28:02,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:28:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:03,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:28:03,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:28:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:28:03,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:28:03,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:28:03,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360188072] [2023-12-02 17:28:03,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360188072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:28:03,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:28:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:28:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281376125] [2023-12-02 17:28:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:03,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:28:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:28:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:28:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:28:03,034 INFO L87 Difference]: Start difference. First operand 162 states and 228 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:03,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:03,077 INFO L93 Difference]: Finished difference Result 321 states and 452 transitions. [2023-12-02 17:28:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:28:03,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:28:03,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:03,079 INFO L225 Difference]: With dead ends: 321 [2023-12-02 17:28:03,079 INFO L226 Difference]: Without dead ends: 160 [2023-12-02 17:28:03,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:28:03,080 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:03,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:28:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-02 17:28:03,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-12-02 17:28:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 143 states have (on average 1.3426573426573427) internal successors, (192), 143 states have internal predecessors, (192), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:28:03,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 222 transitions. [2023-12-02 17:28:03,089 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 222 transitions. Word has length 133 [2023-12-02 17:28:03,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:03,089 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 222 transitions. [2023-12-02 17:28:03,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:03,089 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 222 transitions. [2023-12-02 17:28:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:28:03,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:03,091 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:28:03,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 17:28:03,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:28:03,291 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:03,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1492964477, now seen corresponding path program 1 times [2023-12-02 17:28:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:28:03,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7801525] [2023-12-02 17:28:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:03,293 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 [2023-12-02 17:28:03,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:28:03,293 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:28:03,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:28:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:04,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 17:28:04,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:28:06,494 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 [2023-12-02 17:28:07,099 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 23 treesize of output 22 [2023-12-02 17:28:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 17:28:07,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:28:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:28:10,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:28:10,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7801525] [2023-12-02 17:28:10,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7801525] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 17:28:10,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:28:10,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2023-12-02 17:28:10,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696030109] [2023-12-02 17:28:10,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:10,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:28:10,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:28:10,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:28:10,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:28:10,435 INFO L87 Difference]: Start difference. First operand 160 states and 222 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:15,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:24,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:26,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:28:30,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:32,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 17:28:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:32,437 INFO L93 Difference]: Finished difference Result 382 states and 531 transitions. [2023-12-02 17:28:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:28:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:28:32,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:32,451 INFO L225 Difference]: With dead ends: 382 [2023-12-02 17:28:32,451 INFO L226 Difference]: Without dead ends: 223 [2023-12-02 17:28:32,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-12-02 17:28:32,452 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 68 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:32,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 584 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 306 Invalid, 8 Unknown, 0 Unchecked, 21.1s Time] [2023-12-02 17:28:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-02 17:28:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 174. [2023-12-02 17:28:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 157 states have (on average 1.3439490445859872) internal successors, (211), 157 states have internal predecessors, (211), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:28:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 241 transitions. [2023-12-02 17:28:32,462 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 241 transitions. Word has length 133 [2023-12-02 17:28:32,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:32,462 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 241 transitions. [2023-12-02 17:28:32,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 241 transitions. [2023-12-02 17:28:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:28:32,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:32,464 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:28:32,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:28:32,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:28:32,665 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:32,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:32,665 INFO L85 PathProgramCache]: Analyzing trace with hash 826027717, now seen corresponding path program 1 times [2023-12-02 17:28:32,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:28:32,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695637433] [2023-12-02 17:28:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:32,666 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 [2023-12-02 17:28:32,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:28:32,667 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:28:32,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:28:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:33,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 17:28:33,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:28:34,343 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 [2023-12-02 17:28:34,474 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 19 treesize of output 14 [2023-12-02 17:28:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:28:34,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:28:34,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:28:34,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695637433] [2023-12-02 17:28:34,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695637433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:28:34,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:28:34,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:28:34,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648188154] [2023-12-02 17:28:34,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:34,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:28:34,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:28:34,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:28:34,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:28:34,600 INFO L87 Difference]: Start difference. First operand 174 states and 241 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:37,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:38,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:41,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:43,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:45,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:28:45,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:45,655 INFO L93 Difference]: Finished difference Result 420 states and 586 transitions. [2023-12-02 17:28:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:28:45,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:28:45,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:45,658 INFO L225 Difference]: With dead ends: 420 [2023-12-02 17:28:45,658 INFO L226 Difference]: Without dead ends: 247 [2023-12-02 17:28:45,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:28:45,659 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 197 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:45,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 519 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 431 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2023-12-02 17:28:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-02 17:28:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 181. [2023-12-02 17:28:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 164 states have (on average 1.329268292682927) internal successors, (218), 164 states have internal predecessors, (218), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:28:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 248 transitions. [2023-12-02 17:28:45,668 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 248 transitions. Word has length 133 [2023-12-02 17:28:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:45,669 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 248 transitions. [2023-12-02 17:28:45,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:28:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 248 transitions. [2023-12-02 17:28:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:28:45,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:45,670 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:28:45,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:28:45,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:28:45,871 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:45,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash 433000707, now seen corresponding path program 1 times [2023-12-02 17:28:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:28:45,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615200263] [2023-12-02 17:28:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:45,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:28:45,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:28:45,873 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:28:45,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 17:28:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:46,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 17:28:46,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:28:49,482 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 [2023-12-02 17:28:50,161 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 23 treesize of output 22 [2023-12-02 17:28:50,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-12-02 17:28:50,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 36 [2023-12-02 17:28:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 17:28:51,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:28:52,529 WARN L854 $PredicateComparison]: unable to prove that (or |c_ULTIMATE.start_step_#t~short19#1| (forall ((v_ArrVal_392 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_392))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))))) is different from false [2023-12-02 17:28:52,840 WARN L854 $PredicateComparison]: unable to prove that (or (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))) (forall ((v_ArrVal_392 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_392))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))))) is different from false [2023-12-02 17:28:53,581 WARN L854 $PredicateComparison]: unable to prove that (forall ((~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_392 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base (store (select |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) ~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset ((_ sign_extend 24) (_ bv10 8)))) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_392))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) ~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset)))))))) is different from false [2023-12-02 17:28:54,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:28:54,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615200263] [2023-12-02 17:28:54,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615200263] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:28:54,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [376097377] [2023-12-02 17:28:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:54,370 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:28:54,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:28:54,371 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:28:54,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 17:28:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:56,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:28:56,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:28:57,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:28:58,086 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 17 treesize of output 12 [2023-12-02 17:28:58,349 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 40 treesize of output 28 [2023-12-02 17:28:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:28:58,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:28:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [376097377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:28:58,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:28:58,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-02 17:28:58,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625498971] [2023-12-02 17:28:58,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:58,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:28:58,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:28:58,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:28:58,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=202, Unknown=3, NotChecked=96, Total=380 [2023-12-02 17:28:58,467 INFO L87 Difference]: Start difference. First operand 181 states and 248 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:29:01,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:02,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:04,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:06,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:08,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:11,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:29:11,105 INFO L93 Difference]: Finished difference Result 446 states and 611 transitions. [2023-12-02 17:29:11,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:29:11,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:29:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:29:11,133 INFO L225 Difference]: With dead ends: 446 [2023-12-02 17:29:11,133 INFO L226 Difference]: Without dead ends: 260 [2023-12-02 17:29:11,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=93, Invalid=258, Unknown=3, NotChecked=108, Total=462 [2023-12-02 17:29:11,135 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 204 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:29:11,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 355 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 4 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 17:29:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-02 17:29:11,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 186. [2023-12-02 17:29:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 169 states have (on average 1.319526627218935) internal successors, (223), 169 states have internal predecessors, (223), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:29:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 253 transitions. [2023-12-02 17:29:11,147 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 253 transitions. Word has length 133 [2023-12-02 17:29:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:29:11,148 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 253 transitions. [2023-12-02 17:29:11,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:29:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 253 transitions. [2023-12-02 17:29:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:29:11,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:29:11,149 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:29:11,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 17:29:11,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 17:29:11,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:29:11,550 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:29:11,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:29:11,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1113059077, now seen corresponding path program 1 times [2023-12-02 17:29:11,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:29:11,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138562569] [2023-12-02 17:29:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:29:11,551 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 [2023-12-02 17:29:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:29:11,552 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:29:11,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:29:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:29:12,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:29:12,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:29:12,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:29:12,241 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 37 treesize of output 25 [2023-12-02 17:29:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:29:12,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:29:12,288 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:29:12,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138562569] [2023-12-02 17:29:12,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138562569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:29:12,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:29:12,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:29:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217864708] [2023-12-02 17:29:12,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:29:12,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:29:12,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:29:12,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:29:12,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:29:12,291 INFO L87 Difference]: Start difference. First operand 186 states and 253 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:29:13,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:16,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:18,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:20,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:22,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:29:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:29:23,083 INFO L93 Difference]: Finished difference Result 415 states and 569 transitions. [2023-12-02 17:29:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:29:23,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:29:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:29:23,113 INFO L225 Difference]: With dead ends: 415 [2023-12-02 17:29:23,113 INFO L226 Difference]: Without dead ends: 230 [2023-12-02 17:29:23,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:29:23,115 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 127 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:29:23,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 715 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 212 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2023-12-02 17:29:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-12-02 17:29:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 187. [2023-12-02 17:29:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 170 states have (on average 1.3235294117647058) internal successors, (225), 170 states have internal predecessors, (225), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 17:29:23,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2023-12-02 17:29:23,124 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 133 [2023-12-02 17:29:23,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:29:23,124 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2023-12-02 17:29:23,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:29:23,125 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2023-12-02 17:29:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:29:23,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:29:23,126 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:29:23,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:29:23,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:29:23,327 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:29:23,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:29:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1626977983, now seen corresponding path program 1 times [2023-12-02 17:29:23,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:29:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794915482] [2023-12-02 17:29:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:29:23,328 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 [2023-12-02 17:29:23,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:29:23,329 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:29:23,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:29:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:29:24,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 17:29:24,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:29:24,390 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 17 treesize of output 12 [2023-12-02 17:29:25,178 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 17 treesize of output 12 [2023-12-02 17:29:25,815 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 17 treesize of output 12 [2023-12-02 17:29:26,434 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 17 treesize of output 12 [2023-12-02 17:29:26,916 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 17 treesize of output 12 [2023-12-02 17:29:27,393 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 17 treesize of output 12 [2023-12-02 17:29:27,988 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 17 treesize of output 12 [2023-12-02 17:29:28,592 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 17 treesize of output 12 [2023-12-02 17:29:29,152 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 17 treesize of output 12 [2023-12-02 17:29:30,508 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-02 17:29:30,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:29:38,189 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_481 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (let ((.cse0 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_481))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))) (= ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_481 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|)))) (_ bv0 32)))) is different from false [2023-12-02 17:29:38,339 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:29:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794915482] [2023-12-02 17:29:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794915482] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:29:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [950524972] [2023-12-02 17:29:38,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:29:38,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:29:38,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:29:38,341 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:29:38,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 17:29:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:29:40,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:29:40,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:29:43,712 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 [2023-12-02 17:29:49,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2023-12-02 17:29:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 96 proven. 56 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-02 17:29:53,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:29:59,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [950524972] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:29:59,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789878349] [2023-12-02 17:29:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:29:59,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:29:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:29:59,793 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:29:59,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 17:30:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:30:01,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:30:01,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:30:04,439 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 15 treesize of output 1 [2023-12-02 17:30:07,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2023-12-02 17:30:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 17:30:10,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:30:13,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789878349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:30:13,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:30:13,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6] total 24 [2023-12-02 17:30:13,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026754263] [2023-12-02 17:30:13,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:30:13,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-02 17:30:13,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:30:13,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-02 17:30:13,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=977, Unknown=3, NotChecked=66, Total=1260 [2023-12-02 17:30:13,159 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 25 states, 23 states have (on average 6.608695652173913) internal successors, (152), 22 states have internal predecessors, (152), 8 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 8 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-02 17:30:25,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:30:30,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:30:43,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:30:45,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:30:47,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:00,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:01,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:06,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:11,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:20,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:22,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:24,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:26,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:28,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:29,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:33,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:35,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:36,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:38,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:39,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:41,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:45,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:47,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:48,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:51,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:53,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:56,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:31:59,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:32:01,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:32:04,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:32:05,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:32:05,442 INFO L93 Difference]: Finished difference Result 642 states and 875 transitions. [2023-12-02 17:32:05,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 17:32:05,469 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.608695652173913) internal successors, (152), 22 states have internal predecessors, (152), 8 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 8 states have call predecessors, (33), 8 states have call successors, (33) Word has length 133 [2023-12-02 17:32:05,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:32:05,473 INFO L225 Difference]: With dead ends: 642 [2023-12-02 17:32:05,473 INFO L226 Difference]: Without dead ends: 456 [2023-12-02 17:32:05,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 460 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 45.8s TimeCoverageRelationStatistics Valid=678, Invalid=2861, Unknown=5, NotChecked=116, Total=3660 [2023-12-02 17:32:05,477 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1119 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 252 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:32:05,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 1478 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2256 Invalid, 26 Unknown, 0 Unchecked, 88.3s Time] [2023-12-02 17:32:05,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-12-02 17:32:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 300. [2023-12-02 17:32:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 265 states have (on average 1.3056603773584905) internal successors, (346), 265 states have internal predecessors, (346), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:32:05,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 406 transitions. [2023-12-02 17:32:05,520 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 406 transitions. Word has length 133 [2023-12-02 17:32:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:32:05,521 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 406 transitions. [2023-12-02 17:32:05,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.608695652173913) internal successors, (152), 22 states have internal predecessors, (152), 8 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 8 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-02 17:32:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 406 transitions. [2023-12-02 17:32:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 17:32:05,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:32:05,524 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:32:05,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 17:32:05,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-02 17:32:05,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 17:32:06,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:32:06,125 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:32:06,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:32:06,125 INFO L85 PathProgramCache]: Analyzing trace with hash 298987201, now seen corresponding path program 1 times [2023-12-02 17:32:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:32:06,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101238802] [2023-12-02 17:32:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:32:06,126 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 [2023-12-02 17:32:06,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:32:06,128 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:32:06,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:32:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:32:06,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 17:32:06,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:32:07,155 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 17 treesize of output 12 [2023-12-02 17:32:07,890 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 17 treesize of output 12 [2023-12-02 17:32:08,544 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 17 treesize of output 12 [2023-12-02 17:32:09,174 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 17 treesize of output 12 [2023-12-02 17:32:09,662 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 17 treesize of output 12 [2023-12-02 17:32:10,205 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 17 treesize of output 12 [2023-12-02 17:32:10,804 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 17 treesize of output 12 [2023-12-02 17:32:11,425 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 17 treesize of output 12 [2023-12-02 17:32:12,012 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 17 treesize of output 12 [2023-12-02 17:32:14,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2023-12-02 17:32:15,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 45 [2023-12-02 17:32:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-02 17:32:15,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:32:17,320 WARN L854 $PredicateComparison]: unable to prove that (or |c_ULTIMATE.start_step_#t~short19#1| (forall ((v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_569))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))))) is different from false [2023-12-02 17:32:17,614 WARN L854 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_step_#t~mem18#1_34| (_ BitVec 8))) (bvslt ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem18#1_34|) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset)))))) (forall ((v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_569))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))))) is different from false [2023-12-02 17:32:19,956 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:32:19,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101238802] [2023-12-02 17:32:19,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101238802] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:32:19,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2140592069] [2023-12-02 17:32:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:32:19,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:32:19,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:32:19,957 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:32:19,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 17:32:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:32:22,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:32:22,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:32:25,331 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 12 treesize of output 8 [2023-12-02 17:32:27,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-12-02 17:32:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 17:32:29,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:32:33,015 WARN L854 $PredicateComparison]: unable to prove that (forall ((~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset (_ BitVec 32))) (or (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) ~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))) (forall ((v_ArrVal_595 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_595))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) ~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset)))))))))) is different from false [2023-12-02 17:32:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2140592069] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:32:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200720582] [2023-12-02 17:32:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:32:34,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:32:34,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:32:34,248 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:32:34,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 17:32:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:32:36,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:32:36,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:32:39,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-12-02 17:32:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:32:42,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:32:42,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200720582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:32:42,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:32:42,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 6] total 20 [2023-12-02 17:32:42,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083706773] [2023-12-02 17:32:42,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:32:42,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:32:42,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:32:42,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:32:42,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=417, Unknown=11, NotChecked=138, Total=702 [2023-12-02 17:32:42,597 INFO L87 Difference]: Start difference. First operand 300 states and 406 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:32:51,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:32:53,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:32:55,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:03,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:05,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:07,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:08,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:11,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:12,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:12,513 INFO L93 Difference]: Finished difference Result 689 states and 938 transitions. [2023-12-02 17:33:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:33:12,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2023-12-02 17:33:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:12,552 INFO L225 Difference]: With dead ends: 689 [2023-12-02 17:33:12,553 INFO L226 Difference]: Without dead ends: 390 [2023-12-02 17:33:12,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=176, Invalid=581, Unknown=11, NotChecked=162, Total=930 [2023-12-02 17:33:12,554 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 212 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 5 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:12,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 420 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 326 Invalid, 6 Unknown, 0 Unchecked, 27.6s Time] [2023-12-02 17:33:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-02 17:33:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 283. [2023-12-02 17:33:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 248 states have (on average 1.3064516129032258) internal successors, (324), 248 states have internal predecessors, (324), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:33:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 384 transitions. [2023-12-02 17:33:12,594 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 384 transitions. Word has length 133 [2023-12-02 17:33:12,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:12,594 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 384 transitions. [2023-12-02 17:33:12,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 384 transitions. [2023-12-02 17:33:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:33:12,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:12,596 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:12,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 17:33:12,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 17:33:13,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:13,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:33:13,197 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:33:13,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1056434, now seen corresponding path program 1 times [2023-12-02 17:33:13,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:33:13,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080618290] [2023-12-02 17:33:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:13,199 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 [2023-12-02 17:33:13,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:33:13,200 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:33:13,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:13,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 17:33:13,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:14,121 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 [2023-12-02 17:33:14,979 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 18 treesize of output 13 [2023-12-02 17:33:15,527 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 18 treesize of output 13 [2023-12-02 17:33:16,088 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 18 treesize of output 13 [2023-12-02 17:33:16,589 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 18 treesize of output 13 [2023-12-02 17:33:17,024 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 18 treesize of output 13 [2023-12-02 17:33:17,466 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 18 treesize of output 13 [2023-12-02 17:33:18,028 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 18 treesize of output 13 [2023-12-02 17:33:18,513 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 18 treesize of output 13 [2023-12-02 17:33:19,095 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 18 treesize of output 13 [2023-12-02 17:33:19,364 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 17 treesize of output 12 [2023-12-02 17:33:19,510 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 17 treesize of output 12 [2023-12-02 17:33:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 349 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-02 17:33:19,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:33:20,184 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_660 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_659 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_658 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_658))) (or (not (= ((_ extract 7 0) (select (select .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset)) (_ bv0 8))) (= ((_ extract 7 0) (select (select (store (store .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_659) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_660) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset)) (_ bv0 8))))) is different from false [2023-12-02 17:33:20,245 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:33:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080618290] [2023-12-02 17:33:20,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080618290] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:33:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [929073027] [2023-12-02 17:33:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:20,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:33:20,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:33:20,247 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:33:20,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 17:33:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:21,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:33:21,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:23,448 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 17 treesize of output 12 [2023-12-02 17:33:23,538 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 17 treesize of output 12 [2023-12-02 17:33:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:33:23,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:33:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [929073027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:33:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 18 [2023-12-02 17:33:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272985149] [2023-12-02 17:33:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:23,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:33:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:33:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:33:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=417, Unknown=33, NotChecked=44, Total=600 [2023-12-02 17:33:23,554 INFO L87 Difference]: Start difference. First operand 283 states and 384 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:26,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:28,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:29,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:32,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:34,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:36,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:38,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:40,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:42,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:42,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:42,432 INFO L93 Difference]: Finished difference Result 546 states and 737 transitions. [2023-12-02 17:33:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:33:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:33:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:42,467 INFO L225 Difference]: With dead ends: 546 [2023-12-02 17:33:42,467 INFO L226 Difference]: Without dead ends: 371 [2023-12-02 17:33:42,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=125, Invalid=496, Unknown=33, NotChecked=48, Total=702 [2023-12-02 17:33:42,469 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 239 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:42,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 445 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 378 Invalid, 5 Unknown, 0 Unchecked, 18.7s Time] [2023-12-02 17:33:42,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-02 17:33:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 293. [2023-12-02 17:33:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 258 states have (on average 1.310077519379845) internal successors, (338), 258 states have internal predecessors, (338), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:33:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 398 transitions. [2023-12-02 17:33:42,496 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 398 transitions. Word has length 134 [2023-12-02 17:33:42,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:42,497 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 398 transitions. [2023-12-02 17:33:42,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 398 transitions. [2023-12-02 17:33:42,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:33:42,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:42,498 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:42,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:42,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 17:33:42,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:33:42,899 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:33:42,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:42,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1512497306, now seen corresponding path program 1 times [2023-12-02 17:33:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:33:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944089561] [2023-12-02 17:33:42,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:42,901 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 [2023-12-02 17:33:42,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:33:42,902 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:33:42,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:43,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:33:43,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:43,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:33:43,515 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 25 treesize of output 13 [2023-12-02 17:33:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:33:43,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:33:43,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:33:43,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944089561] [2023-12-02 17:33:43,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944089561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:43,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:33:43,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:33:43,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537705996] [2023-12-02 17:33:43,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:43,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:33:43,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:33:43,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:33:43,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:33:43,542 INFO L87 Difference]: Start difference. First operand 293 states and 398 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:46,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:46,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:46,132 INFO L93 Difference]: Finished difference Result 481 states and 654 transitions. [2023-12-02 17:33:46,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:33:46,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:33:46,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:46,167 INFO L225 Difference]: With dead ends: 481 [2023-12-02 17:33:46,167 INFO L226 Difference]: Without dead ends: 296 [2023-12-02 17:33:46,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:33:46,168 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 7 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:46,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 352 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 17:33:46,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-02 17:33:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2023-12-02 17:33:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 259 states have (on average 1.308880308880309) internal successors, (339), 259 states have internal predecessors, (339), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:33:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 399 transitions. [2023-12-02 17:33:46,205 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 399 transitions. Word has length 134 [2023-12-02 17:33:46,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:46,206 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 399 transitions. [2023-12-02 17:33:46,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:46,206 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 399 transitions. [2023-12-02 17:33:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:33:46,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:46,208 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:46,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-02 17:33:46,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:33:46,409 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:33:46,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:46,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1293642588, now seen corresponding path program 1 times [2023-12-02 17:33:46,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:33:46,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999466976] [2023-12-02 17:33:46,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:46,410 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 [2023-12-02 17:33:46,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:33:46,411 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:33:46,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:46,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:33:46,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:46,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:33:47,051 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2023-12-02 17:33:47,051 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 1 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 17:33:47,100 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 17:33:47,101 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 46 treesize of output 30 [2023-12-02 17:33:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:33:47,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:33:47,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:33:47,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999466976] [2023-12-02 17:33:47,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999466976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:47,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:33:47,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:33:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708202380] [2023-12-02 17:33:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:47,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:33:47,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:33:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:33:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:33:47,131 INFO L87 Difference]: Start difference. First operand 294 states and 399 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:49,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:51,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:54,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:33:56,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:56,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:56,169 INFO L93 Difference]: Finished difference Result 485 states and 659 transitions. [2023-12-02 17:33:56,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:33:56,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:33:56,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:56,199 INFO L225 Difference]: With dead ends: 485 [2023-12-02 17:33:56,200 INFO L226 Difference]: Without dead ends: 299 [2023-12-02 17:33:56,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:33:56,201 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 7 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:56,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 516 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 229 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2023-12-02 17:33:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-02 17:33:56,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 298. [2023-12-02 17:33:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 263 states have (on average 1.3041825095057034) internal successors, (343), 263 states have internal predecessors, (343), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:33:56,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 403 transitions. [2023-12-02 17:33:56,242 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 403 transitions. Word has length 134 [2023-12-02 17:33:56,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:56,242 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 403 transitions. [2023-12-02 17:33:56,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:33:56,243 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 403 transitions. [2023-12-02 17:33:56,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:33:56,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:56,245 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:56,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:56,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:33:56,445 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:33:56,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:56,446 INFO L85 PathProgramCache]: Analyzing trace with hash -681763740, now seen corresponding path program 1 times [2023-12-02 17:33:56,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:33:56,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667141482] [2023-12-02 17:33:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:56,447 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 [2023-12-02 17:33:56,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:33:56,448 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:33:56,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:33:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:57,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 17:33:57,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:58,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:33:58,879 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 28 treesize of output 23 [2023-12-02 17:33:59,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-12-02 17:33:59,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2023-12-02 17:33:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:33:59,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:33:59,373 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:33:59,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667141482] [2023-12-02 17:33:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667141482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:33:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 17:33:59,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551400254] [2023-12-02 17:33:59,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:59,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:33:59,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:33:59,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:33:59,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:33:59,376 INFO L87 Difference]: Start difference. First operand 298 states and 403 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:34:02,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:04,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:34:09,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:12,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:15,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:17,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:34:19,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:34:21,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:34:22,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:34:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:34:22,840 INFO L93 Difference]: Finished difference Result 626 states and 842 transitions. [2023-12-02 17:34:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 17:34:22,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:34:22,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:34:22,843 INFO L225 Difference]: With dead ends: 626 [2023-12-02 17:34:22,843 INFO L226 Difference]: Without dead ends: 436 [2023-12-02 17:34:22,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2023-12-02 17:34:22,845 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 337 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:34:22,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 876 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 744 Invalid, 7 Unknown, 0 Unchecked, 22.8s Time] [2023-12-02 17:34:22,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-02 17:34:22,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 306. [2023-12-02 17:34:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 271 states have (on average 1.3062730627306274) internal successors, (354), 271 states have internal predecessors, (354), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:34:22,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 414 transitions. [2023-12-02 17:34:22,887 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 414 transitions. Word has length 134 [2023-12-02 17:34:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:34:22,887 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 414 transitions. [2023-12-02 17:34:22,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:34:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 414 transitions. [2023-12-02 17:34:22,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:34:22,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:34:22,890 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:22,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:34:23,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:34:23,090 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:34:23,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:34:23,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1371948696, now seen corresponding path program 1 times [2023-12-02 17:34:23,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:34:23,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509097058] [2023-12-02 17:34:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:23,092 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 [2023-12-02 17:34:23,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:34:23,093 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:34:23,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:34:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:23,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:34:23,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:34:23,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 17:34:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:34:23,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:34:23,716 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:34:23,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509097058] [2023-12-02 17:34:23,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509097058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:34:23,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:34:23,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:34:23,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636901498] [2023-12-02 17:34:23,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:34:23,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:34:23,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:34:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:34:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:34:23,718 INFO L87 Difference]: Start difference. First operand 306 states and 414 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:34:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:34:23,820 INFO L93 Difference]: Finished difference Result 504 states and 682 transitions. [2023-12-02 17:34:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:34:23,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:34:23,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:34:23,823 INFO L225 Difference]: With dead ends: 504 [2023-12-02 17:34:23,823 INFO L226 Difference]: Without dead ends: 306 [2023-12-02 17:34:23,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:34:23,824 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:34:23,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:34:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-02 17:34:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-02 17:34:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 271 states have (on average 1.3025830258302582) internal successors, (353), 271 states have internal predecessors, (353), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:34:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 413 transitions. [2023-12-02 17:34:23,851 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 413 transitions. Word has length 134 [2023-12-02 17:34:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:34:23,851 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 413 transitions. [2023-12-02 17:34:23,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:34:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 413 transitions. [2023-12-02 17:34:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:34:23,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:34:23,853 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:23,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:34:24,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:34:24,054 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:34:24,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:34:24,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1153093978, now seen corresponding path program 1 times [2023-12-02 17:34:24,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:34:24,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857759868] [2023-12-02 17:34:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:24,055 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 [2023-12-02 17:34:24,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:34:24,056 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:34:24,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:34:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:24,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 17:34:24,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:34:24,923 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 17 treesize of output 12 [2023-12-02 17:34:25,445 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 17 treesize of output 12 [2023-12-02 17:34:25,921 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 17 treesize of output 12 [2023-12-02 17:34:26,428 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 17 treesize of output 12 [2023-12-02 17:34:26,820 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 17 treesize of output 12 [2023-12-02 17:34:27,176 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 17 treesize of output 12 [2023-12-02 17:34:27,615 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 17 treesize of output 12 [2023-12-02 17:34:28,018 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 17 treesize of output 12 [2023-12-02 17:34:28,393 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 17 treesize of output 12 [2023-12-02 17:34:28,948 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 28 treesize of output 23 [2023-12-02 17:34:29,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2023-12-02 17:34:29,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-12-02 17:34:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:34:29,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:34:29,678 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_846 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_846))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset)))))))) is different from false [2023-12-02 17:34:29,717 WARN L854 $PredicateComparison]: unable to prove that (forall ((~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_846 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base (store (select |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) ~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |c_ULTIMATE.start_step_#t~ite15#1|)))) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_846))) (= ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) ~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset)))))) is different from false [2023-12-02 17:34:29,751 WARN L854 $PredicateComparison]: unable to prove that (forall ((~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_846 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base (store (select |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) ~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))))))) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_846))) (= ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) ~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset)))))) is different from false [2023-12-02 17:34:29,825 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:34:29,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857759868] [2023-12-02 17:34:29,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857759868] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:34:29,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [101798768] [2023-12-02 17:34:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:29,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:34:29,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:34:29,827 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:34:29,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 17:34:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:31,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 17:34:31,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:34:33,268 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 19 treesize of output 19 [2023-12-02 17:34:33,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2023-12-02 17:34:33,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2023-12-02 17:34:33,956 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:34:33,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:34:33,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [101798768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:34:33,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:34:33,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 19 [2023-12-02 17:34:33,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758576116] [2023-12-02 17:34:33,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:34:33,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:34:33,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:34:33,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:34:33,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=472, Unknown=3, NotChecked=138, Total=702 [2023-12-02 17:34:33,958 INFO L87 Difference]: Start difference. First operand 306 states and 413 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:34:36,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:38,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:40,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:46,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:49,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:51,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:53,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:34:56,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:58,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:00,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:03,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:05,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:07,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:35:09,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:35:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:35:09,150 INFO L93 Difference]: Finished difference Result 637 states and 858 transitions. [2023-12-02 17:35:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 17:35:09,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:35:09,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:35:09,154 INFO L225 Difference]: With dead ends: 637 [2023-12-02 17:35:09,154 INFO L226 Difference]: Without dead ends: 439 [2023-12-02 17:35:09,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=241, Invalid=1174, Unknown=3, NotChecked=222, Total=1640 [2023-12-02 17:35:09,155 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 316 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 8 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:35:09,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1088 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1024 Invalid, 13 Unknown, 0 Unchecked, 34.0s Time] [2023-12-02 17:35:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-02 17:35:09,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 304. [2023-12-02 17:35:09,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 269 states have (on average 1.3011152416356877) internal successors, (350), 269 states have internal predecessors, (350), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:35:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 410 transitions. [2023-12-02 17:35:09,181 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 410 transitions. Word has length 134 [2023-12-02 17:35:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:35:09,181 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 410 transitions. [2023-12-02 17:35:09,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:35:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 410 transitions. [2023-12-02 17:35:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:35:09,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:35:09,183 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:35:09,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 17:35:09,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:35:09,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:35:09,584 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:35:09,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:35:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1452929576, now seen corresponding path program 1 times [2023-12-02 17:35:09,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:35:09,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505249082] [2023-12-02 17:35:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:35:09,586 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 [2023-12-02 17:35:09,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:35:09,587 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:35:09,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:35:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:35:10,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:35:10,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:35:10,524 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 17 treesize of output 12 [2023-12-02 17:35:10,884 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 17 treesize of output 12 [2023-12-02 17:35:11,192 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 17 treesize of output 12 [2023-12-02 17:35:11,528 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 17 treesize of output 12 [2023-12-02 17:35:11,781 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 17 treesize of output 12 [2023-12-02 17:35:12,030 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 17 treesize of output 12 [2023-12-02 17:35:12,294 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 17 treesize of output 12 [2023-12-02 17:35:12,535 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 17 treesize of output 12 [2023-12-02 17:35:12,715 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 17 treesize of output 12 [2023-12-02 17:35:13,024 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2023-12-02 17:35:13,024 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 1 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 17:35:13,092 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 17:35:13,093 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 46 treesize of output 30 [2023-12-02 17:35:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:35:13,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:35:13,359 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_909 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) ((_ sign_extend 16) ((_ extract 15 0) ((_ zero_extend 24) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_909) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))))))))) is different from false [2023-12-02 17:35:13,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:35:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505249082] [2023-12-02 17:35:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505249082] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:35:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1000077991] [2023-12-02 17:35:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:35:13,370 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:35:13,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:35:13,378 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:35:13,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 17:35:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:35:15,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 17:35:15,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:35:17,471 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 19 treesize of output 19 [2023-12-02 17:35:19,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2023-12-02 17:35:22,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2023-12-02 17:35:24,903 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:35:24,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:35:24,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1000077991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:35:24,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:35:24,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2023-12-02 17:35:24,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034707039] [2023-12-02 17:35:24,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:35:24,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:35:24,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:35:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:35:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=401, Unknown=1, NotChecked=40, Total=506 [2023-12-02 17:35:24,906 INFO L87 Difference]: Start difference. First operand 304 states and 410 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:35:30,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:06,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:10,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:11,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:16,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:18,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:20,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:21,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:24,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:25,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:28,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:30,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:36:31,779 INFO L93 Difference]: Finished difference Result 635 states and 854 transitions. [2023-12-02 17:36:31,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 17:36:31,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:36:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:36:31,789 INFO L225 Difference]: With dead ends: 635 [2023-12-02 17:36:31,789 INFO L226 Difference]: Without dead ends: 439 [2023-12-02 17:36:31,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=189, Invalid=1004, Unknown=1, NotChecked=66, Total=1260 [2023-12-02 17:36:31,791 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 364 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 8 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:36:31,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1057 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 998 Invalid, 8 Unknown, 0 Unchecked, 49.2s Time] [2023-12-02 17:36:31,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-02 17:36:31,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 302. [2023-12-02 17:36:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 267 states have (on average 1.299625468164794) internal successors, (347), 267 states have internal predecessors, (347), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:36:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 407 transitions. [2023-12-02 17:36:31,824 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 407 transitions. Word has length 134 [2023-12-02 17:36:31,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:36:31,825 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 407 transitions. [2023-12-02 17:36:31,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:36:31,825 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 407 transitions. [2023-12-02 17:36:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 17:36:31,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:36:31,826 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:36:31,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 17:36:32,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-02 17:36:32,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:36:32,227 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:36:32,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:36:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -541215130, now seen corresponding path program 1 times [2023-12-02 17:36:32,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:36:32,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873086604] [2023-12-02 17:36:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:36:32,228 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 [2023-12-02 17:36:32,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:36:32,229 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:36:32,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-02 17:36:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:36:32,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:36:32,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:36:32,977 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 17 treesize of output 12 [2023-12-02 17:36:33,254 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 17 treesize of output 12 [2023-12-02 17:36:33,508 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 17 treesize of output 12 [2023-12-02 17:36:33,803 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 17 treesize of output 12 [2023-12-02 17:36:34,032 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 17 treesize of output 12 [2023-12-02 17:36:34,240 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 17 treesize of output 12 [2023-12-02 17:36:34,488 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 17 treesize of output 12 [2023-12-02 17:36:34,749 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 17 treesize of output 12 [2023-12-02 17:36:34,963 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 17 treesize of output 12 [2023-12-02 17:36:35,275 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2023-12-02 17:36:35,275 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 1 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 17:36:35,336 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 17:36:35,336 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 46 treesize of output 30 [2023-12-02 17:36:35,372 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:36:35,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:36:35,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:36:35,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873086604] [2023-12-02 17:36:35,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873086604] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:36:35,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [663564658] [2023-12-02 17:36:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:36:35,658 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:36:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:36:35,659 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:36:35,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 17:36:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:36:37,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:36:37,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:36:39,373 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 19 treesize of output 19 [2023-12-02 17:36:39,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 17:36:39,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 17:36:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:36:40,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:36:40,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [663564658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:36:40,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:36:40,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 17 [2023-12-02 17:36:40,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869958397] [2023-12-02 17:36:40,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:36:40,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 17:36:40,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:36:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 17:36:40,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=395, Unknown=2, NotChecked=0, Total=462 [2023-12-02 17:36:40,035 INFO L87 Difference]: Start difference. First operand 302 states and 407 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:36:43,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:45,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:47,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:36:52,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:54,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:57,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:59,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:01,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:37:03,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:37:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:37:03,981 INFO L93 Difference]: Finished difference Result 586 states and 785 transitions. [2023-12-02 17:37:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 17:37:03,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-02 17:37:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:37:03,984 INFO L225 Difference]: With dead ends: 586 [2023-12-02 17:37:03,984 INFO L226 Difference]: Without dead ends: 392 [2023-12-02 17:37:03,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=141, Invalid=787, Unknown=2, NotChecked=0, Total=930 [2023-12-02 17:37:03,986 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 270 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:37:03,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 829 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 698 Invalid, 9 Unknown, 0 Unchecked, 23.1s Time] [2023-12-02 17:37:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-12-02 17:37:04,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 292. [2023-12-02 17:37:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 257 states have (on average 1.2957198443579767) internal successors, (333), 257 states have internal predecessors, (333), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:37:04,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 393 transitions. [2023-12-02 17:37:04,019 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 393 transitions. Word has length 134 [2023-12-02 17:37:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:37:04,020 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 393 transitions. [2023-12-02 17:37:04,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:37:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 393 transitions. [2023-12-02 17:37:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 17:37:04,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:37:04,021 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:37:04,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-02 17:37:04,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 17:37:04,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:37:04,422 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:37:04,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:37:04,423 INFO L85 PathProgramCache]: Analyzing trace with hash 773214592, now seen corresponding path program 1 times [2023-12-02 17:37:04,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:37:04,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025554547] [2023-12-02 17:37:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:04,424 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 [2023-12-02 17:37:04,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:37:04,425 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:37:04,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:37:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:05,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:37:05,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:37:05,216 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 17 treesize of output 12 [2023-12-02 17:37:05,757 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 17 treesize of output 12 [2023-12-02 17:37:06,170 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 17 treesize of output 12 [2023-12-02 17:37:06,573 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 17 treesize of output 12 [2023-12-02 17:37:06,992 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 17 treesize of output 12 [2023-12-02 17:37:07,387 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 17 treesize of output 12 [2023-12-02 17:37:07,816 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 17 treesize of output 12 [2023-12-02 17:37:08,242 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 17 treesize of output 12 [2023-12-02 17:37:08,624 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 21 treesize of output 20 [2023-12-02 17:37:09,158 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 25 treesize of output 18 [2023-12-02 17:37:09,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2023-12-02 17:37:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:37:09,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:37:09,369 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1040 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1040) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset)))))) is different from false [2023-12-02 17:37:09,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:37:09,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025554547] [2023-12-02 17:37:09,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025554547] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:37:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1181487098] [2023-12-02 17:37:09,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:09,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:37:09,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:37:09,394 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:37:09,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 17:37:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:11,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 17:37:11,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:37:11,814 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 17 treesize of output 12 [2023-12-02 17:37:12,662 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 17 treesize of output 12 [2023-12-02 17:37:13,322 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 17 treesize of output 12 [2023-12-02 17:37:13,988 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 17 treesize of output 12 [2023-12-02 17:37:14,533 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 17 treesize of output 12 [2023-12-02 17:37:15,101 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 17 treesize of output 12 [2023-12-02 17:37:15,798 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 17 treesize of output 12 [2023-12-02 17:37:16,378 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 17 treesize of output 12 [2023-12-02 17:37:16,943 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 21 treesize of output 20 [2023-12-02 17:37:17,736 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 25 treesize of output 18 [2023-12-02 17:37:17,986 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 25 treesize of output 18 [2023-12-02 17:37:18,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-12-02 17:37:18,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2023-12-02 17:37:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:37:18,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:37:19,103 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1079 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (let ((.cse0 (store (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1078) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1079))) (store .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset)))))) is different from false [2023-12-02 17:37:19,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1181487098] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:37:19,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034626414] [2023-12-02 17:37:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:37:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:37:19,133 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:37:19,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-12-02 17:37:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:20,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:37:20,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:37:22,803 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 17 treesize of output 17 [2023-12-02 17:37:23,044 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 22 treesize of output 15 [2023-12-02 17:37:23,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2023-12-02 17:37:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:37:23,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:37:23,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034626414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:37:23,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:37:23,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 10] total 25 [2023-12-02 17:37:23,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692963648] [2023-12-02 17:37:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:37:23,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 17:37:23,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:37:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 17:37:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=680, Unknown=17, NotChecked=110, Total=930 [2023-12-02 17:37:23,618 INFO L87 Difference]: Start difference. First operand 292 states and 393 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:37:26,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:28,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:31,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:33,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:35,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:37,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:39,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:41,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:44,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:37:44,113 INFO L93 Difference]: Finished difference Result 607 states and 825 transitions. [2023-12-02 17:37:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 17:37:44,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2023-12-02 17:37:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:37:44,141 INFO L225 Difference]: With dead ends: 607 [2023-12-02 17:37:44,141 INFO L226 Difference]: Without dead ends: 423 [2023-12-02 17:37:44,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=231, Invalid=1320, Unknown=17, NotChecked=154, Total=1722 [2023-12-02 17:37:44,142 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 466 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:37:44,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 648 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 406 Invalid, 5 Unknown, 0 Unchecked, 19.8s Time] [2023-12-02 17:37:44,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-12-02 17:37:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 308. [2023-12-02 17:37:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 273 states have (on average 1.304029304029304) internal successors, (356), 273 states have internal predecessors, (356), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:37:44,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 416 transitions. [2023-12-02 17:37:44,177 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 416 transitions. Word has length 135 [2023-12-02 17:37:44,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:37:44,177 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 416 transitions. [2023-12-02 17:37:44,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:37:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 416 transitions. [2023-12-02 17:37:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 17:37:44,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:37:44,179 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:37:44,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 17:37:44,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-12-02 17:37:44,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:37:44,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:37:44,784 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:37:44,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:37:44,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1060245952, now seen corresponding path program 1 times [2023-12-02 17:37:44,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:37:44,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862886248] [2023-12-02 17:37:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:44,785 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 [2023-12-02 17:37:44,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:37:44,786 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:37:44,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:37:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:45,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:37:45,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:37:45,627 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 17 treesize of output 12 [2023-12-02 17:37:46,177 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 17 treesize of output 12 [2023-12-02 17:37:46,604 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 17 treesize of output 12 [2023-12-02 17:37:47,049 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 17 treesize of output 12 [2023-12-02 17:37:47,356 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 17 treesize of output 12 [2023-12-02 17:37:47,647 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 17 treesize of output 12 [2023-12-02 17:37:48,097 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 17 treesize of output 12 [2023-12-02 17:37:48,480 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 17 treesize of output 12 [2023-12-02 17:37:48,859 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 21 treesize of output 20 [2023-12-02 17:37:49,314 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 25 treesize of output 18 [2023-12-02 17:37:49,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2023-12-02 17:37:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:37:49,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:37:49,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:37:49,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862886248] [2023-12-02 17:37:49,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862886248] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:37:49,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [581711540] [2023-12-02 17:37:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:49,537 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:37:49,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:37:49,537 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:37:49,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 17:37:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:51,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:37:51,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:37:55,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:37:55,565 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 [2023-12-02 17:37:55,810 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 18 treesize of output 13 [2023-12-02 17:37:55,997 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 23 treesize of output 22 [2023-12-02 17:37:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 17:37:56,178 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:37:56,673 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1180))) (or (not (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset))))) (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (let ((.cse1 (store .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1181))) (store .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset))))))) is different from false [2023-12-02 17:37:56,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [581711540] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:37:56,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123467583] [2023-12-02 17:37:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:56,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:37:56,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:37:56,746 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:37:56,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-12-02 17:37:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:57,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 17:37:57,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:38:00,321 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 18 treesize of output 13 [2023-12-02 17:38:00,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2023-12-02 17:38:00,713 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:38:00,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:38:00,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123467583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:38:00,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:38:00,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 8] total 20 [2023-12-02 17:38:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432913906] [2023-12-02 17:38:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:38:00,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:38:00,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:38:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:38:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=586, Unknown=8, NotChecked=50, Total=756 [2023-12-02 17:38:00,716 INFO L87 Difference]: Start difference. First operand 308 states and 416 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:38:03,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:06,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:08,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:10,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:12,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:14,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:15,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:38:15,487 INFO L93 Difference]: Finished difference Result 631 states and 858 transitions. [2023-12-02 17:38:15,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:38:15,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2023-12-02 17:38:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:38:15,517 INFO L225 Difference]: With dead ends: 631 [2023-12-02 17:38:15,517 INFO L226 Difference]: Without dead ends: 431 [2023-12-02 17:38:15,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=162, Invalid=826, Unknown=8, NotChecked=60, Total=1056 [2023-12-02 17:38:15,519 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 299 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:38:15,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 564 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 543 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2023-12-02 17:38:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-02 17:38:15,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 318. [2023-12-02 17:38:15,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 283 states have (on average 1.3109540636042403) internal successors, (371), 283 states have internal predecessors, (371), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:38:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 431 transitions. [2023-12-02 17:38:15,559 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 431 transitions. Word has length 135 [2023-12-02 17:38:15,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:38:15,559 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 431 transitions. [2023-12-02 17:38:15,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:38:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 431 transitions. [2023-12-02 17:38:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 17:38:15,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:38:15,561 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:38:15,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-12-02 17:38:15,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:38:15,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 17:38:16,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:38:16,162 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:38:16,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:38:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1414771136, now seen corresponding path program 1 times [2023-12-02 17:38:16,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:38:16,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939388356] [2023-12-02 17:38:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:16,163 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 [2023-12-02 17:38:16,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:38:16,163 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:38:16,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:38:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:16,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 17:38:16,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:38:17,140 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 17 treesize of output 12 [2023-12-02 17:38:17,894 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 17 treesize of output 12 [2023-12-02 17:38:18,579 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 17 treesize of output 12 [2023-12-02 17:38:19,248 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 17 treesize of output 12 [2023-12-02 17:38:19,784 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 17 treesize of output 12 [2023-12-02 17:38:20,349 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 17 treesize of output 12 [2023-12-02 17:38:20,951 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 17 treesize of output 12 [2023-12-02 17:38:21,665 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 17 treesize of output 12 [2023-12-02 17:38:22,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 17:38:23,040 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 17 treesize of output 12 [2023-12-02 17:38:23,223 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 17 treesize of output 12 [2023-12-02 17:38:23,382 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 22 treesize of output 21 [2023-12-02 17:38:23,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2023-12-02 17:38:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:38:23,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:38:23,740 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1252 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1252))) (store .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset)))))) is different from false [2023-12-02 17:38:24,062 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:38:24,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939388356] [2023-12-02 17:38:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939388356] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:38:24,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1084100409] [2023-12-02 17:38:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:24,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:38:24,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:38:24,063 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:38:24,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 17:38:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:26,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 17:38:26,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:38:29,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:38:30,348 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 [2023-12-02 17:38:30,727 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 19 treesize of output 14 [2023-12-02 17:38:30,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2023-12-02 17:38:31,142 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 17:38:31,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:38:31,229 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1285 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (let ((.cse0 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1285))) (store .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset)))))) is different from false [2023-12-02 17:38:31,587 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1284 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1285 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1284))) (or (not (= ((_ zero_extend 16) ((_ extract 15 0) (select (select (let ((.cse0 (store .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1285))) (store .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset))) (_ bv16 32))) (= (_ bv16 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var2_Pointer~0.offset))))))) is different from false [2023-12-02 17:38:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1084100409] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:38:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167964770] [2023-12-02 17:38:31,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:31,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:38:31,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:38:31,662 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:38:31,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-12-02 17:38:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:33,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:38:33,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:38:36,044 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 19 treesize of output 14 [2023-12-02 17:38:36,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2023-12-02 17:38:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:38:36,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:38:36,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167964770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:38:36,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:38:36,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 9] total 22 [2023-12-02 17:38:36,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135883681] [2023-12-02 17:38:36,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:38:36,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:38:36,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:38:36,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:38:36,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=542, Unknown=22, NotChecked=162, Total=930 [2023-12-02 17:38:36,432 INFO L87 Difference]: Start difference. First operand 318 states and 431 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:38:39,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:40,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:43,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:45,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:47,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:48,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:51,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:52,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:55,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:56,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:38:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:38:56,558 INFO L93 Difference]: Finished difference Result 634 states and 865 transitions. [2023-12-02 17:38:56,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 17:38:56,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2023-12-02 17:38:56,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:38:56,584 INFO L225 Difference]: With dead ends: 634 [2023-12-02 17:38:56,584 INFO L226 Difference]: Without dead ends: 424 [2023-12-02 17:38:56,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=237, Invalid=683, Unknown=22, NotChecked=180, Total=1122 [2023-12-02 17:38:56,585 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 382 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:38:56,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 517 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 5 Unknown, 0 Unchecked, 19.8s Time] [2023-12-02 17:38:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-12-02 17:38:56,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 317. [2023-12-02 17:38:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 282 states have (on average 1.3049645390070923) internal successors, (368), 282 states have internal predecessors, (368), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:38:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 428 transitions. [2023-12-02 17:38:56,624 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 428 transitions. Word has length 135 [2023-12-02 17:38:56,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:38:56,625 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 428 transitions. [2023-12-02 17:38:56,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:38:56,625 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 428 transitions. [2023-12-02 17:38:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 17:38:56,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:38:56,626 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:38:56,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 17:38:56,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-12-02 17:38:57,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Forceful destruction successful, exit code 0 [2023-12-02 17:38:57,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:38:57,227 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:38:57,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:38:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1021744126, now seen corresponding path program 1 times [2023-12-02 17:38:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:38:57,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715127551] [2023-12-02 17:38:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:57,228 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 [2023-12-02 17:38:57,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:38:57,229 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:38:57,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:38:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:58,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 17:38:58,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:39:01,541 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 [2023-12-02 17:39:02,520 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 23 treesize of output 22 [2023-12-02 17:39:03,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2023-12-02 17:39:04,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2023-12-02 17:39:05,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 50 [2023-12-02 17:39:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 17:39:05,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:39:09,129 WARN L854 $PredicateComparison]: unable to prove that (or (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1348 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1348))) (store .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset)))))))) (forall ((|v_ULTIMATE.start_step_#t~mem18#1_76| (_ BitVec 8))) (bvslt ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem18#1_76|) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))) is different from false [2023-12-02 17:39:09,964 WARN L854 $PredicateComparison]: unable to prove that (forall ((~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset (_ BitVec 32))) (let ((.cse0 (store |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base (store (select |c_#memory_int| c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) ~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset ((_ sign_extend 24) (_ bv10 8)))))) (or (forall ((|v_ULTIMATE.start_step_#t~mem18#1_76| (_ BitVec 8))) (bvslt ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem18#1_76|) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset)))))) (forall ((|ULTIMATE.start_step_#t~ite30#1| (_ BitVec 32)) (v_ArrVal_1348 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse1 (let ((.cse2 (store .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base v_ArrVal_1348))) (store .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base (store (select .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) |ULTIMATE.start_step_#t~ite30#1|))))))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) ~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset))))))))))) is different from false [2023-12-02 17:39:11,343 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:39:11,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715127551] [2023-12-02 17:39:11,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715127551] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:39:11,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1462970758] [2023-12-02 17:39:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:11,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:39:11,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:39:11,344 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:39:11,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 17:39:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:39:13,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 17:39:13,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:39:14,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:39:15,468 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 17 treesize of output 12 [2023-12-02 17:39:15,935 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 17 treesize of output 12 [2023-12-02 17:39:16,345 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 40 treesize of output 28 [2023-12-02 17:39:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:39:16,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:39:16,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1462970758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:39:16,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:39:16,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2023-12-02 17:39:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238199999] [2023-12-02 17:39:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:39:16,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:39:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:39:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:39:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=323, Unknown=3, NotChecked=78, Total=506 [2023-12-02 17:39:16,430 INFO L87 Difference]: Start difference. First operand 317 states and 428 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:39:18,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:21,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:24,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:24,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:39:24,932 INFO L93 Difference]: Finished difference Result 640 states and 863 transitions. [2023-12-02 17:39:24,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:39:24,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2023-12-02 17:39:24,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:39:24,960 INFO L225 Difference]: With dead ends: 640 [2023-12-02 17:39:24,960 INFO L226 Difference]: Without dead ends: 431 [2023-12-02 17:39:24,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=119, Invalid=392, Unknown=3, NotChecked=86, Total=600 [2023-12-02 17:39:24,961 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 244 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:39:24,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 367 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 302 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 17:39:24,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-02 17:39:24,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 329. [2023-12-02 17:39:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 294 states have (on average 1.2993197278911566) internal successors, (382), 294 states have internal predecessors, (382), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:39:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 442 transitions. [2023-12-02 17:39:25,000 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 442 transitions. Word has length 135 [2023-12-02 17:39:25,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:39:25,000 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 442 transitions. [2023-12-02 17:39:25,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:39:25,000 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 442 transitions. [2023-12-02 17:39:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 17:39:25,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:39:25,002 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:39:25,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 17:39:25,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:39:25,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:39:25,402 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:39:25,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:39:25,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1701802496, now seen corresponding path program 1 times [2023-12-02 17:39:25,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:39:25,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161387406] [2023-12-02 17:39:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:25,404 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 [2023-12-02 17:39:25,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:39:25,405 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:39:25,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:39:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:39:26,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:39:26,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:39:26,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 17:39:27,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2023-12-02 17:39:27,150 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 37 treesize of output 25 [2023-12-02 17:39:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 17:39:27,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:39:27,205 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:39:27,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161387406] [2023-12-02 17:39:27,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161387406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:39:27,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:39:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 17:39:27,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169899161] [2023-12-02 17:39:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:39:27,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:39:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:39:27,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:39:27,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:39:27,207 INFO L87 Difference]: Start difference. First operand 329 states and 442 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:39:29,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:31,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:34,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:36,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:38,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:39:38,192 INFO L93 Difference]: Finished difference Result 615 states and 830 transitions. [2023-12-02 17:39:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:39:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2023-12-02 17:39:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:39:38,222 INFO L225 Difference]: With dead ends: 615 [2023-12-02 17:39:38,222 INFO L226 Difference]: Without dead ends: 394 [2023-12-02 17:39:38,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:39:38,223 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 285 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:39:38,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 588 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2023-12-02 17:39:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-02 17:39:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 323. [2023-12-02 17:39:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 288 states have (on average 1.3055555555555556) internal successors, (376), 288 states have internal predecessors, (376), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 17:39:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 436 transitions. [2023-12-02 17:39:38,262 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 436 transitions. Word has length 135 [2023-12-02 17:39:38,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:39:38,263 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 436 transitions. [2023-12-02 17:39:38,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 17:39:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 436 transitions. [2023-12-02 17:39:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 17:39:38,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:39:38,264 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:39:38,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:39:38,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:39:38,465 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:39:38,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:39:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1083783740, now seen corresponding path program 1 times [2023-12-02 17:39:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:39:38,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213254793] [2023-12-02 17:39:38,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:38,466 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 [2023-12-02 17:39:38,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:39:38,467 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 17:39:38,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 17:39:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:39:39,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 17:39:39,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:39:39,588 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 17 treesize of output 12 [2023-12-02 17:39:40,405 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 17 treesize of output 12 [2023-12-02 17:39:41,175 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 17 treesize of output 12 [2023-12-02 17:39:41,865 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 17 treesize of output 12 [2023-12-02 17:39:42,482 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 17 treesize of output 12 [2023-12-02 17:39:43,042 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 17 treesize of output 12 [2023-12-02 17:39:43,684 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 17 treesize of output 12 [2023-12-02 17:39:44,365 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 17 treesize of output 12 [2023-12-02 17:39:44,954 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 17 treesize of output 12 [2023-12-02 17:39:46,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-12-02 17:39:46,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-12-02 17:39:47,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 41 [2023-12-02 17:39:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-02 17:39:47,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:39:55,202 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:39:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213254793] [2023-12-02 17:39:55,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213254793] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:39:55,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1405258724] [2023-12-02 17:39:55,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:55,203 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:39:55,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:39:55,204 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:39:55,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 17:39:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:39:57,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 17:39:57,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:39:58,326 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 17 treesize of output 12 [2023-12-02 17:39:59,116 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 17 treesize of output 12 [2023-12-02 17:39:59,585 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 17 treesize of output 12 [2023-12-02 17:39:59,995 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 17 treesize of output 12 [2023-12-02 17:40:00,345 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 17 treesize of output 12 [2023-12-02 17:40:01,032 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 17 treesize of output 12 [2023-12-02 17:40:01,443 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 17 treesize of output 12 [2023-12-02 17:40:01,852 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 17 treesize of output 12 [2023-12-02 17:40:02,586 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 17 treesize of output 12 [2023-12-02 17:40:03,519 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 17 treesize of output 12 [2023-12-02 17:40:03,980 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 17 treesize of output 12 [2023-12-02 17:40:04,377 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 40 treesize of output 28 [2023-12-02 17:40:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-02 17:40:04,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:40:07,456 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1485 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_property_#t~mem93#1_63| (_ BitVec 16))) (not (bvslt ((_ zero_extend 24) ((_ extract 7 0) (select (select (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1485) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.base) c_~unsigned_char_Array_0_arrayunsigned_char_Array_0Var0_Pointer~0.offset))) (bvsdiv (_ bv10 32) ((_ zero_extend 16) |v_ULTIMATE.start_property_#t~mem93#1_63|))))) is different from false [2023-12-02 17:40:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1405258724] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:40:11,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665656594] [2023-12-02 17:40:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:11,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:11,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:11,130 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:40:11,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76e7d823-c360-4dfa-9a9d-761c4ab12daf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-12-02 17:40:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:13,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:40:13,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:40:17,090 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 [2023-12-02 17:40:19,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-12-02 17:40:22,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2023-12-02 17:40:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-02 17:40:23,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:40:31,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665656594] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:40:31,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:40:31,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 7] total 26 [2023-12-02 17:40:31,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059035376] [2023-12-02 17:40:31,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:40:31,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 17:40:31,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:40:31,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 17:40:31,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=890, Unknown=23, NotChecked=66, Total=1260 [2023-12-02 17:40:31,713 INFO L87 Difference]: Start difference. First operand 323 states and 436 transitions. Second operand has 27 states, 26 states have (on average 7.384615384615385) internal successors, (192), 25 states have internal predecessors, (192), 10 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 10 states have call predecessors, (45), 10 states have call successors, (45)