./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje --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 3866fcabc53f8729ce5445d739af818fee4df02a7fd7be02b76364ea8cb9d346 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:21:42,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:21:42,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:21:42,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:21:42,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:21:42,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:21:42,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:21:42,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:21:42,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:21:42,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:21:42,193 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:21:42,193 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:21:42,194 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:21:42,194 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:21:42,194 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:21:42,198 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:21:42,198 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:21:42,198 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:21:42,199 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:21:42,199 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:21:42,199 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:21:42,200 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:21:42,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:21:42,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:21:42,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:21:42,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:21:42,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:21:42,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:21:42,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:21:42,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:21:42,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:21:42,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:21:42,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:21:42,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:21:42,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:21:42,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:21:42,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:21:42,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:21:42,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:21:42,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:21:42,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:21:42,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:21:42,209 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:21:42,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:21:42,210 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:21:42,210 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:21:42,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:21:42,211 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_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3866fcabc53f8729ce5445d739af818fee4df02a7fd7be02b76364ea8cb9d346 [2024-11-09 01:21:42,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:21:42,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:21:42,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:21:42,489 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:21:42,490 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:21:42,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i Unable to find full path for "g++" [2024-11-09 01:21:44,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:21:44,724 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:21:44,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i [2024-11-09 01:21:44,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data/d8afe66ac/0f630315bd0649c6864bbc7708b54209/FLAG4cac57cbc [2024-11-09 01:21:45,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data/d8afe66ac/0f630315bd0649c6864bbc7708b54209 [2024-11-09 01:21:45,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:21:45,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:21:45,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:21:45,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:21:45,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:21:45,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d490139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45, skipping insertion in model container [2024-11-09 01:21:45,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:21:45,328 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i[916,929] [2024-11-09 01:21:45,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:21:45,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:21:45,422 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i[916,929] [2024-11-09 01:21:45,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:21:45,499 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:21:45,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45 WrapperNode [2024-11-09 01:21:45,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:21:45,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:21:45,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:21:45,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:21:45,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,593 INFO L138 Inliner]: procedures = 30, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 540 [2024-11-09 01:21:45,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:21:45,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:21:45,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:21:45,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:21:45,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:21:45,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:21:45,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:21:45,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:21:45,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (1/1) ... [2024-11-09 01:21:45,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:21:45,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:45,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:21:45,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:21:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:21:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 01:21:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 01:21:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 01:21:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:21:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 01:21:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:21:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:21:45,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:21:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:21:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:21:45,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:21:45,908 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:21:45,911 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:21:46,735 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-11-09 01:21:46,735 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:21:47,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:21:47,379 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:21:47,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:21:47 BoogieIcfgContainer [2024-11-09 01:21:47,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:21:47,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:21:47,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:21:47,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:21:47,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:21:45" (1/3) ... [2024-11-09 01:21:47,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8ba087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:21:47, skipping insertion in model container [2024-11-09 01:21:47,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:21:45" (2/3) ... [2024-11-09 01:21:47,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8ba087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:21:47, skipping insertion in model container [2024-11-09 01:21:47,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:21:47" (3/3) ... [2024-11-09 01:21:47,393 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-43.i [2024-11-09 01:21:47,411 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:21:47,411 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:21:47,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:21:47,476 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@430ea9cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:21:47,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:21:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:21:47,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 01:21:47,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:47,491 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:47,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:21:47,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:47,497 INFO L85 PathProgramCache]: Analyzing trace with hash 986216739, now seen corresponding path program 1 times [2024-11-09 01:21:47,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:47,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054973287] [2024-11-09 01:21:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:47,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:21:49,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409389772] [2024-11-09 01:21:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:49,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:49,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:49,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:49,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:21:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:21:54,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:21:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:21:57,956 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 01:21:57,959 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:21:57,961 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:21:57,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:21:58,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 01:21:58,168 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 01:21:58,224 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:21:58,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:21:58 BoogieIcfgContainer [2024-11-09 01:21:58,228 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:21:58,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:21:58,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:21:58,229 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:21:58,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:21:47" (3/4) ... [2024-11-09 01:21:58,233 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:21:58,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:21:58,235 INFO L158 Benchmark]: Toolchain (without parser) took 13129.56ms. Allocated memory was 161.5MB in the beginning and 272.6MB in the end (delta: 111.1MB). Free memory was 124.8MB in the beginning and 175.0MB in the end (delta: -50.2MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2024-11-09 01:21:58,236 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:21:58,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.30ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 105.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 01:21:58,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.49ms. Allocated memory is still 161.5MB. Free memory was 104.7MB in the beginning and 100.1MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 01:21:58,238 INFO L158 Benchmark]: Boogie Preprocessor took 91.92ms. Allocated memory is still 161.5MB. Free memory was 100.1MB in the beginning and 96.3MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:21:58,239 INFO L158 Benchmark]: RCFGBuilder took 1693.41ms. Allocated memory is still 161.5MB. Free memory was 96.3MB in the beginning and 90.0MB in the end (delta: 6.3MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-11-09 01:21:58,239 INFO L158 Benchmark]: TraceAbstraction took 10845.70ms. Allocated memory was 161.5MB in the beginning and 272.6MB in the end (delta: 111.1MB). Free memory was 89.0MB in the beginning and 176.0MB in the end (delta: -87.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-11-09 01:21:58,240 INFO L158 Benchmark]: Witness Printer took 5.84ms. Allocated memory is still 272.6MB. Free memory was 176.0MB in the beginning and 175.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:21:58,244 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.30ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 105.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.49ms. Allocated memory is still 161.5MB. Free memory was 104.7MB in the beginning and 100.1MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.92ms. Allocated memory is still 161.5MB. Free memory was 100.1MB in the beginning and 96.3MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1693.41ms. Allocated memory is still 161.5MB. Free memory was 96.3MB in the beginning and 90.0MB in the end (delta: 6.3MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10845.70ms. Allocated memory was 161.5MB in the beginning and 272.6MB in the end (delta: 111.1MB). Free memory was 89.0MB in the beginning and 176.0MB in the end (delta: -87.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Witness Printer took 5.84ms. Allocated memory is still 272.6MB. Free memory was 176.0MB in the beginning and 175.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of shiftLeft at line 70, overapproximation of bitwiseOr at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 81. Possible FailurePath: [L42] unsigned char isInitial = 0; [L43-L62] struct WrapperStruct00 WrapperStruct00 = { 64, 4.5, 64.8, 64.4, 0.2, 10000, 1, 50, 8, 2, 100, 128, 23647, 32, 0, -50, 0, 0 }; [L135] isInitial = 1 [L136] FCALL initially() [L137] COND TRUE 1 [L138] FCALL updateLastVariables() [L139] CALL updateVariables() [L95] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L96] EXPR WrapperStruct00.var_1_2 [L96] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L96] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) [L96] EXPR WrapperStruct00.var_1_2 [L96] EXPR WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F [L96] EXPR WrapperStruct00.var_1_2 [L96] EXPR WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F [L96] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L98] EXPR WrapperStruct00.var_1_3 [L98] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F [L98] EXPR WrapperStruct00.var_1_3 [L98] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F [L98] EXPR (WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] WrapperStruct00.var_1_4 = __VERIFIER_nondet_float() [L100] EXPR WrapperStruct00.var_1_4 [L100] EXPR WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F [L100] EXPR WrapperStruct00.var_1_4 [L100] EXPR WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F [L100] EXPR (WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] WrapperStruct00.var_1_5 = __VERIFIER_nondet_float() [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F [L102] EXPR (WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not((WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L103] WrapperStruct00.var_1_7 = __VERIFIER_nondet_short() [L104] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 8191) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 8191) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] WrapperStruct00.var_1_8 = __VERIFIER_nondet_short() [L107] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 8192) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 8192) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] WrapperStruct00.var_1_9 = __VERIFIER_nondet_short() [L110] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 8191) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 8191) VAL [WrapperStruct00={4:0}, isInitial=1] [L112] WrapperStruct00.var_1_10 = __VERIFIER_nondet_short() [L113] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L116] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L117] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1] [L118] WrapperStruct00.var_1_16 = __VERIFIER_nondet_ushort() [L119] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1] [L121] WrapperStruct00.var_1_19 = __VERIFIER_nondet_char() [L122] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L122] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1] [L123] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L123] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L124] WrapperStruct00.var_1_21 = __VERIFIER_nondet_uchar() [L125] EXPR WrapperStruct00.var_1_21 VAL [WrapperStruct00={4:0}, isInitial=1] [L125] CALL assume_abort_if_not(WrapperStruct00.var_1_21 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(WrapperStruct00.var_1_21 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L126] EXPR WrapperStruct00.var_1_21 VAL [WrapperStruct00={4:0}, isInitial=1] [L126] CALL assume_abort_if_not(WrapperStruct00.var_1_21 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(WrapperStruct00.var_1_21 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L139] RET updateVariables() [L140] CALL step() [L66] EXPR WrapperStruct00.var_1_19 [L66] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_19 [L67] EXPR WrapperStruct00.var_1_21 [L67] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_21 [L68] EXPR WrapperStruct00.var_1_18 [L68] signed char stepLocal_1 = WrapperStruct00.var_1_18; [L69] EXPR WrapperStruct00.var_1_9 [L69] EXPR WrapperStruct00.var_1_7 [L69] signed long int stepLocal_0 = WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7; [L70] EXPR WrapperStruct00.var_1_8 [L70] EXPR WrapperStruct00.var_1_10 [L70] EXPR WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10 [L70] COND FALSE !(stepLocal_1 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) [L77] EXPR WrapperStruct00.var_1_7 [L77] EXPR WrapperStruct00.var_1_18 [L77] EXPR WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18 [L77] signed long int stepLocal_2 = WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18; [L78] EXPR WrapperStruct00.var_1_14 [L78] COND FALSE !(WrapperStruct00.var_1_14 >= stepLocal_2) [L81] EXPR WrapperStruct00.var_1_2 [L81] EXPR WrapperStruct00.var_1_3 [L81] EXPR WrapperStruct00.var_1_4 [L81] EXPR WrapperStruct00.var_1_5 [L81] EXPR ((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5)) [L81] EXPR WrapperStruct00.var_1_4 [L81] EXPR WrapperStruct00.var_1_5 [L81] EXPR ((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5)) [L81] COND TRUE WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5)))) [L82] WrapperStruct00.var_1_20 [L82] COND FALSE !(WrapperStruct00.var_1_20) [L92] EXPR WrapperStruct00.var_1_1 [L92] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_1 [L140] RET step() [L141] CALL, EXPR property() [L131] EXPR WrapperStruct00.var_1_2 [L131] EXPR WrapperStruct00.var_1_3 [L131] EXPR WrapperStruct00.var_1_4 [L131] EXPR WrapperStruct00.var_1_5 [L131] EXPR ((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5)) [L131] EXPR WrapperStruct00.var_1_4 [L131] EXPR WrapperStruct00.var_1_5 [L131] EXPR ((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5)) [L131] EXPR (WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13))) [L131] EXPR WrapperStruct00.var_1_20 [L131] EXPR WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)) [L131] EXPR WrapperStruct00.var_1_1 [L131] EXPR WrapperStruct00.var_1_13 [L131] EXPR WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)) [L131] EXPR (WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13))) [L131] EXPR ((WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)))) && ((WrapperStruct00.var_1_18 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) ? (((WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7) > -25) ? (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14)) : (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14))) : 1) [L131] EXPR (((WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)))) && ((WrapperStruct00.var_1_18 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) ? (((WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7) > -25) ? (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14)) : (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14))) : 1)) && ((WrapperStruct00.var_1_14 >= (WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_15 == ((unsigned short int) (WrapperStruct00.var_1_14 + (WrapperStruct00.var_1_16 - WrapperStruct00.var_1_13)))) : 1) [L131] EXPR ((((WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)))) && ((WrapperStruct00.var_1_18 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) ? (((WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7) > -25) ? (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14)) : (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14))) : 1)) && ((WrapperStruct00.var_1_14 >= (WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_15 == ((unsigned short int) (WrapperStruct00.var_1_14 + (WrapperStruct00.var_1_16 - WrapperStruct00.var_1_13)))) : 1)) && (WrapperStruct00.var_1_17 == ((unsigned short int) WrapperStruct00.var_1_1)) [L131] EXPR (((((WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)))) && ((WrapperStruct00.var_1_18 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) ? (((WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7) > -25) ? (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14)) : (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14))) : 1)) && ((WrapperStruct00.var_1_14 >= (WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_15 == ((unsigned short int) (WrapperStruct00.var_1_14 + (WrapperStruct00.var_1_16 - WrapperStruct00.var_1_13)))) : 1)) && (WrapperStruct00.var_1_17 == ((unsigned short int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_18 == ((signed char) WrapperStruct00.var_1_19)) [L131] EXPR ((((((WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)))) && ((WrapperStruct00.var_1_18 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) ? (((WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7) > -25) ? (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14)) : (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14))) : 1)) && ((WrapperStruct00.var_1_14 >= (WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_15 == ((unsigned short int) (WrapperStruct00.var_1_14 + (WrapperStruct00.var_1_16 - WrapperStruct00.var_1_13)))) : 1)) && (WrapperStruct00.var_1_17 == ((unsigned short int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_18 == ((signed char) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((unsigned char) WrapperStruct00.var_1_21)) [L131-L132] return ((((((WrapperStruct00.var_1_2 != ((((WrapperStruct00.var_1_3) > ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))) ? (WrapperStruct00.var_1_3) : ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5))))) ? (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) (((WrapperStruct00.var_1_7 - 32) + (WrapperStruct00.var_1_13 + WrapperStruct00.var_1_13)) - WrapperStruct00.var_1_13))) : 1) : (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_13)))) && ((WrapperStruct00.var_1_18 > (WrapperStruct00.var_1_8 << WrapperStruct00.var_1_10)) ? (((WrapperStruct00.var_1_9 / WrapperStruct00.var_1_7) > -25) ? (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14)) : (WrapperStruct00.var_1_13 == ((unsigned char) WrapperStruct00.var_1_14))) : 1)) && ((WrapperStruct00.var_1_14 >= (WrapperStruct00.var_1_7 ^ WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_15 == ((unsigned short int) (WrapperStruct00.var_1_14 + (WrapperStruct00.var_1_16 - WrapperStruct00.var_1_13)))) : 1)) && (WrapperStruct00.var_1_17 == ((unsigned short int) WrapperStruct00.var_1_1))) && (WrapperStruct00.var_1_18 == ((signed char) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((unsigned char) WrapperStruct00.var_1_21)) ; [L141] RET, EXPR property() [L141] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 1, TraceHistogramMax: 20, 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=49occurred 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, 6.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 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 [2024-11-09 01:21:58,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje --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 3866fcabc53f8729ce5445d739af818fee4df02a7fd7be02b76364ea8cb9d346 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:22:00,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:22:00,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 01:22:00,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:22:00,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:22:00,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:22:00,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:22:00,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:22:00,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:22:00,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:22:00,808 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:22:00,808 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:22:00,808 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:22:00,813 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:22:00,813 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:22:00,813 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:22:00,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:22:00,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:22:00,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:22:00,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:22:00,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:22:00,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:22:00,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:22:00,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:22:00,819 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:22:00,820 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:22:00,820 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:22:00,820 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:22:00,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:22:00,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:22:00,821 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:22:00,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:22:00,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:22:00,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:22:00,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:22:00,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:22:00,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:22:00,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:22:00,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:22:00,823 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:22:00,824 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:22:00,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:22:00,826 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:22:00,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3866fcabc53f8729ce5445d739af818fee4df02a7fd7be02b76364ea8cb9d346 [2024-11-09 01:22:01,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:22:01,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:22:01,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:22:01,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:22:01,226 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:22:01,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i Unable to find full path for "g++" [2024-11-09 01:22:03,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:22:03,717 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:22:03,717 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i [2024-11-09 01:22:03,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data/a56861089/fe481d85dbd44b3493b6651d9950ebcd/FLAGf1c3121be [2024-11-09 01:22:04,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/data/a56861089/fe481d85dbd44b3493b6651d9950ebcd [2024-11-09 01:22:04,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:22:04,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:22:04,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:22:04,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:22:04,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:22:04,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c307d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04, skipping insertion in model container [2024-11-09 01:22:04,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:22:04,339 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i[916,929] [2024-11-09 01:22:04,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:22:04,517 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:22:04,534 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-43.i[916,929] [2024-11-09 01:22:04,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:22:04,615 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:22:04,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04 WrapperNode [2024-11-09 01:22:04,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:22:04,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:22:04,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:22:04,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:22:04,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,697 INFO L138 Inliner]: procedures = 34, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 499 [2024-11-09 01:22:04,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:22:04,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:22:04,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:22:04,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:22:04,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:22:04,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:22:04,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:22:04,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:22:04,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (1/1) ... [2024-11-09 01:22:04,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:22:04,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:04,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:22:04,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:22:04,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:22:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 01:22:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:22:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 01:22:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 01:22:04,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 01:22:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2024-11-09 01:22:04,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-11-09 01:22:04,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:22:04,885 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:22:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 01:22:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:22:04,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:22:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 01:22:04,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 01:22:05,102 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:22:05,105 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:22:06,833 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-11-09 01:22:06,834 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:22:06,852 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:22:06,853 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:22:06,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:22:06 BoogieIcfgContainer [2024-11-09 01:22:06,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:22:06,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:22:06,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:22:06,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:22:06,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:22:04" (1/3) ... [2024-11-09 01:22:06,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfc0758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:22:06, skipping insertion in model container [2024-11-09 01:22:06,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:22:04" (2/3) ... [2024-11-09 01:22:06,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfc0758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:22:06, skipping insertion in model container [2024-11-09 01:22:06,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:22:06" (3/3) ... [2024-11-09 01:22:06,870 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-43.i [2024-11-09 01:22:06,892 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:22:06,892 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:22:06,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:22:06,978 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@69532566, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:22:06,978 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:22:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 90 states have (on average 1.4) internal successors, (126), 91 states have internal predecessors, (126), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 01:22:07,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:07,004 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:07,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:07,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1403657548, now seen corresponding path program 1 times [2024-11-09 01:22:07,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:07,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509113716] [2024-11-09 01:22:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:07,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:07,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:07,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:07,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 01:22:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:07,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:22:07,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-09 01:22:07,695 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:07,696 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:07,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509113716] [2024-11-09 01:22:07,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509113716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:07,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:07,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:22:07,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892524726] [2024-11-09 01:22:07,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:07,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:22:07,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:22:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:22:07,735 INFO L87 Difference]: Start difference. First operand has 113 states, 90 states have (on average 1.4) internal successors, (126), 91 states have internal predecessors, (126), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:07,791 INFO L93 Difference]: Finished difference Result 219 states and 346 transitions. [2024-11-09 01:22:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:22:07,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-09 01:22:07,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:07,824 INFO L225 Difference]: With dead ends: 219 [2024-11-09 01:22:07,825 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 01:22:07,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:22:07,837 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:07,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:22:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 01:22:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-09 01:22:07,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:07,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2024-11-09 01:22:07,909 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 165 [2024-11-09 01:22:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:07,911 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2024-11-09 01:22:07,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:07,912 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2024-11-09 01:22:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 01:22:07,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:07,917 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:07,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 01:22:08,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:08,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:08,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:08,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1011577324, now seen corresponding path program 1 times [2024-11-09 01:22:08,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:08,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707371643] [2024-11-09 01:22:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:08,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:08,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:08,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:08,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 01:22:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:08,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:22:08,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-09 01:22:08,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:08,719 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:08,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707371643] [2024-11-09 01:22:08,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707371643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:08,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:08,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:22:08,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775597747] [2024-11-09 01:22:08,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:08,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:22:08,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:08,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:22:08,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:22:08,727 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:08,870 INFO L93 Difference]: Finished difference Result 217 states and 318 transitions. [2024-11-09 01:22:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:22:08,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-09 01:22:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:08,881 INFO L225 Difference]: With dead ends: 217 [2024-11-09 01:22:08,881 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 01:22:08,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:22:08,883 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:08,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:22:08,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 01:22:08,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-09 01:22:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:08,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-09 01:22:08,912 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 165 [2024-11-09 01:22:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:08,914 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-09 01:22:08,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:08,914 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-09 01:22:08,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 01:22:08,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:08,920 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:08,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:09,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:09,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:09,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1836809106, now seen corresponding path program 1 times [2024-11-09 01:22:09,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:09,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281017379] [2024-11-09 01:22:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:09,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:09,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:09,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:09,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 01:22:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:09,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:22:09,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:22:09,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:09,835 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:09,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281017379] [2024-11-09 01:22:09,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281017379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:09,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:09,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:22:09,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051398763] [2024-11-09 01:22:09,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:09,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:22:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:22:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:22:09,838 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:09,993 INFO L93 Difference]: Finished difference Result 226 states and 329 transitions. [2024-11-09 01:22:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:22:09,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-09 01:22:09,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:09,997 INFO L225 Difference]: With dead ends: 226 [2024-11-09 01:22:09,997 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 01:22:10,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:22:10,003 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:10,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 740 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:22:10,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 01:22:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-09 01:22:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 95 states have internal predecessors, (127), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 167 transitions. [2024-11-09 01:22:10,018 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 167 transitions. Word has length 165 [2024-11-09 01:22:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:10,019 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 167 transitions. [2024-11-09 01:22:10,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 167 transitions. [2024-11-09 01:22:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 01:22:10,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:10,026 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:10,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:10,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:10,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:10,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash -683150828, now seen corresponding path program 1 times [2024-11-09 01:22:10,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:10,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111321568] [2024-11-09 01:22:10,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:10,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:10,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:10,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:10,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 01:22:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:10,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:22:10,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:22:10,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:10,896 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111321568] [2024-11-09 01:22:10,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111321568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:10,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:10,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 01:22:10,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806495215] [2024-11-09 01:22:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:10,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:22:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:10,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:22:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:22:10,900 INFO L87 Difference]: Start difference. First operand 117 states and 167 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:11,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:11,048 INFO L93 Difference]: Finished difference Result 234 states and 335 transitions. [2024-11-09 01:22:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:22:11,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-09 01:22:11,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:11,052 INFO L225 Difference]: With dead ends: 234 [2024-11-09 01:22:11,052 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 01:22:11,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:22:11,058 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:11,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 881 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:22:11,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 01:22:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-09 01:22:11,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.3298969072164948) internal successors, (129), 97 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:11,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 169 transitions. [2024-11-09 01:22:11,079 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 169 transitions. Word has length 165 [2024-11-09 01:22:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:11,080 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 169 transitions. [2024-11-09 01:22:11,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 169 transitions. [2024-11-09 01:22:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 01:22:11,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:11,085 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:11,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 01:22:11,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:11,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:11,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:11,287 INFO L85 PathProgramCache]: Analyzing trace with hash -681303786, now seen corresponding path program 1 times [2024-11-09 01:22:11,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:11,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593975811] [2024-11-09 01:22:11,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:11,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:11,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:11,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:11,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 01:22:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:11,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:22:11,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:12,134 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 95 treesize of output 41 [2024-11-09 01:22:12,193 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-09 01:22:12,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:12,194 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:12,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593975811] [2024-11-09 01:22:12,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593975811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:12,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:12,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:22:12,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080861752] [2024-11-09 01:22:12,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:12,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:22:12,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:12,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:22:12,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:22:12,197 INFO L87 Difference]: Start difference. First operand 119 states and 169 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:14,228 INFO L93 Difference]: Finished difference Result 236 states and 336 transitions. [2024-11-09 01:22:14,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:22:14,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-09 01:22:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:14,235 INFO L225 Difference]: With dead ends: 236 [2024-11-09 01:22:14,235 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 01:22:14,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:22:14,237 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 139 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:14,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 460 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 01:22:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 01:22:14,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-09 01:22:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 97 states have internal predecessors, (128), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 168 transitions. [2024-11-09 01:22:14,259 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 168 transitions. Word has length 165 [2024-11-09 01:22:14,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:14,259 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 168 transitions. [2024-11-09 01:22:14,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:14,259 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 168 transitions. [2024-11-09 01:22:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-09 01:22:14,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:14,266 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:14,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:14,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:14,471 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:14,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:14,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1295009008, now seen corresponding path program 1 times [2024-11-09 01:22:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167177661] [2024-11-09 01:22:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:14,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:14,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:14,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:14,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 01:22:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:14,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:22:14,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:15,150 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 95 treesize of output 41 [2024-11-09 01:22:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-09 01:22:15,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:15,194 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167177661] [2024-11-09 01:22:15,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167177661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:15,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:15,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:22:15,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889142126] [2024-11-09 01:22:15,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:15,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:22:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:15,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:22:15,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:22:15,197 INFO L87 Difference]: Start difference. First operand 119 states and 168 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:17,109 INFO L93 Difference]: Finished difference Result 236 states and 334 transitions. [2024-11-09 01:22:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:22:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 167 [2024-11-09 01:22:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:17,111 INFO L225 Difference]: With dead ends: 236 [2024-11-09 01:22:17,111 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 01:22:17,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:22:17,113 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 130 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:17,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 456 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 01:22:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 01:22:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-09 01:22:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.309278350515464) internal successors, (127), 97 states have internal predecessors, (127), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 01:22:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2024-11-09 01:22:17,124 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 167 transitions. Word has length 167 [2024-11-09 01:22:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:17,124 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 167 transitions. [2024-11-09 01:22:17,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 167 transitions. [2024-11-09 01:22:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:22:17,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:17,127 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:17,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:17,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:17,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:17,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:17,329 INFO L85 PathProgramCache]: Analyzing trace with hash 334213206, now seen corresponding path program 1 times [2024-11-09 01:22:17,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:17,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299089323] [2024-11-09 01:22:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:17,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:17,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:17,331 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:17,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 01:22:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:18,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:22:18,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:18,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:18,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2024-11-09 01:22:18,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:18,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 52 [2024-11-09 01:22:18,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:18,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 20 [2024-11-09 01:22:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:22:18,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:18,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:18,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299089323] [2024-11-09 01:22:18,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299089323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:18,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:18,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:22:18,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481255735] [2024-11-09 01:22:18,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:18,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:22:18,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:18,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:22:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:22:18,419 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:22,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:22,855 INFO L93 Difference]: Finished difference Result 305 states and 425 transitions. [2024-11-09 01:22:22,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 01:22:22,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-09 01:22:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:22,859 INFO L225 Difference]: With dead ends: 305 [2024-11-09 01:22:22,859 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 01:22:22,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:22:22,864 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 166 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:22,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 466 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 01:22:22,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 01:22:22,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 182. [2024-11-09 01:22:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 142 states have (on average 1.2746478873239437) internal successors, (181), 143 states have internal predecessors, (181), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 01:22:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 253 transitions. [2024-11-09 01:22:22,897 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 253 transitions. Word has length 169 [2024-11-09 01:22:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:22,898 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 253 transitions. [2024-11-09 01:22:22,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 253 transitions. [2024-11-09 01:22:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:22:22,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:22,901 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:22,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:23,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:23,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:23,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash 756915032, now seen corresponding path program 1 times [2024-11-09 01:22:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:23,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787161488] [2024-11-09 01:22:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:23,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:23,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:23,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:23,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 01:22:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:23,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:22:23,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:23,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:23,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2024-11-09 01:22:24,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:24,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 52 [2024-11-09 01:22:24,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:24,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 71 [2024-11-09 01:22:24,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:24,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 74 [2024-11-09 01:22:24,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:24,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 26 [2024-11-09 01:22:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:22:24,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:24,453 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:24,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787161488] [2024-11-09 01:22:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787161488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:24,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:24,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:22:24,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754323362] [2024-11-09 01:22:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:24,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:22:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:22:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:22:24,456 INFO L87 Difference]: Start difference. First operand 182 states and 253 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:31,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:31,480 INFO L93 Difference]: Finished difference Result 413 states and 566 transitions. [2024-11-09 01:22:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 01:22:31,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-09 01:22:31,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:31,485 INFO L225 Difference]: With dead ends: 413 [2024-11-09 01:22:31,485 INFO L226 Difference]: Without dead ends: 289 [2024-11-09 01:22:31,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2024-11-09 01:22:31,487 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 303 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:31,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 537 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-09 01:22:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-09 01:22:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 182. [2024-11-09 01:22:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 142 states have (on average 1.267605633802817) internal successors, (180), 143 states have internal predecessors, (180), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 01:22:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 252 transitions. [2024-11-09 01:22:31,533 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 252 transitions. Word has length 169 [2024-11-09 01:22:31,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:31,537 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 252 transitions. [2024-11-09 01:22:31,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:31,538 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 252 transitions. [2024-11-09 01:22:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:22:31,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:31,540 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:31,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:31,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:31,741 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:31,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash -264153322, now seen corresponding path program 1 times [2024-11-09 01:22:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:31,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560946133] [2024-11-09 01:22:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:31,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:31,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:31,744 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:31,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 01:22:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:32,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 01:22:32,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:22:32,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 91 [2024-11-09 01:22:33,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:33,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 118 [2024-11-09 01:22:33,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:33,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 118 [2024-11-09 01:22:34,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:34,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 118 [2024-11-09 01:22:35,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:35,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 118 [2024-11-09 01:22:36,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:36,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 118 [2024-11-09 01:22:37,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:37,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 119 [2024-11-09 01:22:37,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:37,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 128 [2024-11-09 01:22:38,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:38,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 120 treesize of output 131 [2024-11-09 01:22:39,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:39,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 115 treesize of output 132 [2024-11-09 01:22:40,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:40,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 115 treesize of output 132 [2024-11-09 01:22:41,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:41,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 120 treesize of output 122 [2024-11-09 01:22:42,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:42,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 119 [2024-11-09 01:22:43,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:43,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 125 treesize of output 140 [2024-11-09 01:22:43,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:43,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 129 treesize of output 134 [2024-11-09 01:22:43,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:43,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 120 treesize of output 140 [2024-11-09 01:22:44,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:44,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 130 treesize of output 135 [2024-11-09 01:22:44,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:44,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 147 treesize of output 69 [2024-11-09 01:22:44,777 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 32 proven. 624 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 01:22:44,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:22:45,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:45,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560946133] [2024-11-09 01:22:45,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560946133] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:45,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:22:45,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-11-09 01:22:45,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276591701] [2024-11-09 01:22:45,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:45,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:22:45,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:45,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:22:45,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-09 01:22:45,167 INFO L87 Difference]: Start difference. First operand 182 states and 252 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:48,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:48,141 INFO L93 Difference]: Finished difference Result 432 states and 591 transitions. [2024-11-09 01:22:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:22:48,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-09 01:22:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:48,146 INFO L225 Difference]: With dead ends: 432 [2024-11-09 01:22:48,148 INFO L226 Difference]: Without dead ends: 308 [2024-11-09 01:22:48,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-11-09 01:22:48,149 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 132 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:48,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 895 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 01:22:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-09 01:22:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 304. [2024-11-09 01:22:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 241 states have (on average 1.2697095435684647) internal successors, (306), 242 states have internal predecessors, (306), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:22:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 418 transitions. [2024-11-09 01:22:48,203 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 418 transitions. Word has length 169 [2024-11-09 01:22:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:48,204 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 418 transitions. [2024-11-09 01:22:48,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 418 transitions. [2024-11-09 01:22:48,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:22:48,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:48,211 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:48,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 01:22:48,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:48,411 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:48,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1078805551, now seen corresponding path program 1 times [2024-11-09 01:22:48,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:48,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208610575] [2024-11-09 01:22:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:48,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:48,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:48,414 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:48,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 01:22:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:49,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:22:49,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:49,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:49,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2024-11-09 01:22:49,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:49,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 52 [2024-11-09 01:22:49,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:49,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 71 [2024-11-09 01:22:49,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:49,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 74 [2024-11-09 01:22:49,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:49,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 26 [2024-11-09 01:22:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:22:49,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:49,689 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208610575] [2024-11-09 01:22:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208610575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:49,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:49,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 01:22:49,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886669900] [2024-11-09 01:22:49,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:49,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:22:49,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:49,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:22:49,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:22:49,692 INFO L87 Difference]: Start difference. First operand 304 states and 418 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:54,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:54,932 INFO L93 Difference]: Finished difference Result 663 states and 901 transitions. [2024-11-09 01:22:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 01:22:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-09 01:22:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:54,936 INFO L225 Difference]: With dead ends: 663 [2024-11-09 01:22:54,936 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 01:22:54,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2024-11-09 01:22:54,938 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 333 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:54,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 507 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 01:22:54,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 01:22:54,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 304. [2024-11-09 01:22:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 242 states have internal predecessors, (304), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:22:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 416 transitions. [2024-11-09 01:22:54,973 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 416 transitions. Word has length 169 [2024-11-09 01:22:54,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:54,974 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 416 transitions. [2024-11-09 01:22:54,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:22:54,974 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 416 transitions. [2024-11-09 01:22:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:22:54,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:54,976 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:54,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:55,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:55,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:55,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash 57737197, now seen corresponding path program 1 times [2024-11-09 01:22:55,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:55,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272606684] [2024-11-09 01:22:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:55,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:55,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:55,181 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:55,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 01:22:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:55,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:22:55,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:22:55,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:55,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:55,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272606684] [2024-11-09 01:22:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272606684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:55,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:55,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:22:55,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848444878] [2024-11-09 01:22:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:55,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:22:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:22:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:22:55,703 INFO L87 Difference]: Start difference. First operand 304 states and 416 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:55,755 INFO L93 Difference]: Finished difference Result 550 states and 749 transitions. [2024-11-09 01:22:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:22:55,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-09 01:22:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:55,758 INFO L225 Difference]: With dead ends: 550 [2024-11-09 01:22:55,759 INFO L226 Difference]: Without dead ends: 304 [2024-11-09 01:22:55,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:22:55,760 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:55,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:22:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-09 01:22:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302. [2024-11-09 01:22:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 239 states have (on average 1.2594142259414225) internal successors, (301), 240 states have internal predecessors, (301), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:22:55,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 413 transitions. [2024-11-09 01:22:55,803 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 413 transitions. Word has length 169 [2024-11-09 01:22:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:55,804 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 413 transitions. [2024-11-09 01:22:55,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:22:55,804 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 413 transitions. [2024-11-09 01:22:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:22:55,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:55,806 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:55,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:56,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:56,007 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:56,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:56,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1041885972, now seen corresponding path program 1 times [2024-11-09 01:22:56,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:56,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190311910] [2024-11-09 01:22:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:56,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:22:56,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:56,011 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:22:56,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 01:22:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:56,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:22:56,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:56,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:56,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2024-11-09 01:22:56,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:56,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 52 [2024-11-09 01:22:56,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:22:56,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 20 [2024-11-09 01:22:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:22:56,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:56,952 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190311910] [2024-11-09 01:22:56,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190311910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:56,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:56,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:22:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936346827] [2024-11-09 01:22:56,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:56,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:22:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:56,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:22:56,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:22:56,955 INFO L87 Difference]: Start difference. First operand 302 states and 413 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:23:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:00,450 INFO L93 Difference]: Finished difference Result 557 states and 753 transitions. [2024-11-09 01:23:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 01:23:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-09 01:23:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:00,454 INFO L225 Difference]: With dead ends: 557 [2024-11-09 01:23:00,455 INFO L226 Difference]: Without dead ends: 313 [2024-11-09 01:23:00,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:23:00,456 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 209 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:00,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 460 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 01:23:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-09 01:23:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 302. [2024-11-09 01:23:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 240 states have internal predecessors, (299), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:23:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 411 transitions. [2024-11-09 01:23:00,492 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 411 transitions. Word has length 169 [2024-11-09 01:23:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:00,493 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 411 transitions. [2024-11-09 01:23:00,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:23:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 411 transitions. [2024-11-09 01:23:00,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:23:00,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:00,495 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:00,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-09 01:23:00,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:23:00,699 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:23:00,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:00,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1464587798, now seen corresponding path program 1 times [2024-11-09 01:23:00,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:23:00,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486676148] [2024-11-09 01:23:00,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:00,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:23:00,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:23:00,703 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:23:00,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 01:23:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:01,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 01:23:01,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:01,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:23:01,806 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 80 treesize of output 34 [2024-11-09 01:23:01,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-09 01:23:02,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-09 01:23:02,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-11-09 01:23:02,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:02,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 57 [2024-11-09 01:23:03,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:03,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 70 [2024-11-09 01:23:04,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:04,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 83 [2024-11-09 01:23:04,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:04,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 86 [2024-11-09 01:23:05,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:05,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 96 [2024-11-09 01:23:05,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:05,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 125 treesize of output 109 [2024-11-09 01:23:06,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:06,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 140 treesize of output 112 [2024-11-09 01:23:07,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:07,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 143 [2024-11-09 01:23:08,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:08,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 169 treesize of output 150 [2024-11-09 01:23:13,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:13,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 251 treesize of output 187 [2024-11-09 01:23:15,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:23:15,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 316 treesize of output 118 [2024-11-09 01:23:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 01:23:22,671 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:23:22,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:23:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486676148] [2024-11-09 01:23:22,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486676148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:23:22,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:23:22,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-09 01:23:22,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842900348] [2024-11-09 01:23:22,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:23:22,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 01:23:22,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:23:22,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 01:23:22,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=230, Unknown=1, NotChecked=0, Total=342 [2024-11-09 01:23:22,677 INFO L87 Difference]: Start difference. First operand 302 states and 411 transitions. Second operand has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-09 01:23:23,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:48,875 WARN L286 SmtUtils]: Spent 9.70s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:23:57,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:57,155 INFO L93 Difference]: Finished difference Result 982 states and 1285 transitions. [2024-11-09 01:23:57,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 01:23:57,156 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 169 [2024-11-09 01:23:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:57,161 INFO L225 Difference]: With dead ends: 982 [2024-11-09 01:23:57,161 INFO L226 Difference]: Without dead ends: 738 [2024-11-09 01:23:57,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=129, Invalid=290, Unknown=1, NotChecked=0, Total=420 [2024-11-09 01:23:57,164 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 525 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:57,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 711 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2024-11-09 01:23:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-09 01:23:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 511. [2024-11-09 01:23:57,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 392 states have (on average 1.2244897959183674) internal successors, (480), 393 states have internal predecessors, (480), 96 states have call successors, (96), 22 states have call predecessors, (96), 22 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 01:23:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 672 transitions. [2024-11-09 01:23:57,266 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 672 transitions. Word has length 169 [2024-11-09 01:23:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:57,267 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 672 transitions. [2024-11-09 01:23:57,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-09 01:23:57,268 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 672 transitions. [2024-11-09 01:23:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:23:57,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:57,270 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:57,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:23:57,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:23:57,471 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:23:57,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:57,472 INFO L85 PathProgramCache]: Analyzing trace with hash -529556908, now seen corresponding path program 1 times [2024-11-09 01:23:57,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:23:57,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519787230] [2024-11-09 01:23:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:57,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:23:57,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:23:57,476 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:23:57,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 01:24:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:19,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-09 01:24:19,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:24:19,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:24:19,732 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 80 treesize of output 34 [2024-11-09 01:24:21,013 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 138 treesize of output 65 [2024-11-09 01:24:23,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:23,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 106 [2024-11-09 01:24:25,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:25,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 206 treesize of output 109 [2024-11-09 01:24:25,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:25,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 206 treesize of output 109 [2024-11-09 01:24:26,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:26,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 201 treesize of output 119 [2024-11-09 01:24:28,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:28,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 211 treesize of output 132 [2024-11-09 01:24:29,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:29,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 145 [2024-11-09 01:24:31,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:31,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 236 treesize of output 148 [2024-11-09 01:24:32,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:32,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 236 treesize of output 148 [2024-11-09 01:24:33,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:33,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 251 treesize of output 188 [2024-11-09 01:24:34,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:34,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 270 treesize of output 194 [2024-11-09 01:24:48,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:48,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 260 treesize of output 184 [2024-11-09 01:24:49,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:24:49,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 322 treesize of output 112 [2024-11-09 01:24:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 536 proven. 96 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-09 01:24:51,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:25:05,990 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:05,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519787230] [2024-11-09 01:25:05,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519787230] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:25:05,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:25:05,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [30] total 34 [2024-11-09 01:25:05,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581705653] [2024-11-09 01:25:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:05,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:25:05,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:05,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:25:05,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 01:25:05,992 INFO L87 Difference]: Start difference. First operand 511 states and 672 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:25:08,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:10,848 WARN L539 Checker$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 [] [2024-11-09 01:25:25,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:26,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:40,273 INFO L93 Difference]: Finished difference Result 1045 states and 1362 transitions. [2024-11-09 01:25:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:25:40,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-09 01:25:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:40,285 INFO L225 Difference]: With dead ends: 1045 [2024-11-09 01:25:40,286 INFO L226 Difference]: Without dead ends: 594 [2024-11-09 01:25:40,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=218, Invalid=972, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 01:25:40,289 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 84 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:40,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 366 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 3 Unknown, 0 Unchecked, 32.4s Time] [2024-11-09 01:25:40,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-09 01:25:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 522. [2024-11-09 01:25:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 403 states have (on average 1.218362282878412) internal successors, (491), 404 states have internal predecessors, (491), 96 states have call successors, (96), 22 states have call predecessors, (96), 22 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 01:25:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 683 transitions. [2024-11-09 01:25:40,387 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 683 transitions. Word has length 169 [2024-11-09 01:25:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:40,388 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 683 transitions. [2024-11-09 01:25:40,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:25:40,389 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 683 transitions. [2024-11-09 01:25:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:25:40,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:40,390 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:40,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-09 01:25:40,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:40,591 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:25:40,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:40,592 INFO L85 PathProgramCache]: Analyzing trace with hash -340850536, now seen corresponding path program 1 times [2024-11-09 01:25:40,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:40,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309812784] [2024-11-09 01:25:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:40,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:40,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:40,596 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:40,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 01:26:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:23,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-09 01:26:23,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:23,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:26:23,951 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 80 treesize of output 34 [2024-11-09 01:26:25,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:25,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 65 [2024-11-09 01:26:27,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:27,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 196 treesize of output 96 [2024-11-09 01:26:28,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:28,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 106 [2024-11-09 01:26:29,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:29,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 201 treesize of output 119 [2024-11-09 01:26:31,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:31,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 211 treesize of output 132 [2024-11-09 01:26:32,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:32,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 135 [2024-11-09 01:26:33,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:33,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 145 [2024-11-09 01:26:35,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:35,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 236 treesize of output 148 [2024-11-09 01:26:36,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:36,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 236 treesize of output 148 [2024-11-09 01:26:37,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:37,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 251 treesize of output 188 [2024-11-09 01:26:38,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:38,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 270 treesize of output 194 [2024-11-09 01:26:47,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:47,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 349 treesize of output 219 [2024-11-09 01:26:48,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:26:48,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 411 treesize of output 147 [2024-11-09 01:26:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 568 proven. 96 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 01:26:50,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:27:03,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:03,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309812784] [2024-11-09 01:27:03,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309812784] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:27:03,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:27:03,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [30] total 34 [2024-11-09 01:27:03,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347871346] [2024-11-09 01:27:03,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:03,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:27:03,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:03,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:27:03,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 01:27:03,501 INFO L87 Difference]: Start difference. First operand 522 states and 683 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:27:04,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:18,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:20,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:33,643 WARN L539 Checker$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 [] [2024-11-09 01:27:35,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:37,422 INFO L93 Difference]: Finished difference Result 1097 states and 1419 transitions. [2024-11-09 01:27:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:27:37,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-09 01:27:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:37,435 INFO L225 Difference]: With dead ends: 1097 [2024-11-09 01:27:37,436 INFO L226 Difference]: Without dead ends: 635 [2024-11-09 01:27:37,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 01:27:37,438 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 104 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:37,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 415 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 3 Unknown, 0 Unchecked, 32.8s Time] [2024-11-09 01:27:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-09 01:27:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 629. [2024-11-09 01:27:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 502 states have (on average 1.2270916334661355) internal successors, (616), 507 states have internal predecessors, (616), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 95 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-09 01:27:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 816 transitions. [2024-11-09 01:27:37,549 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 816 transitions. Word has length 169 [2024-11-09 01:27:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:37,549 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 816 transitions. [2024-11-09 01:27:37,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:27:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 816 transitions. [2024-11-09 01:27:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:27:37,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:37,551 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:37,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:37,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:27:37,752 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:27:37,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:37,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1959972054, now seen corresponding path program 1 times [2024-11-09 01:27:37,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:37,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87585] [2024-11-09 01:27:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:37,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:27:37,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:37,759 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:27:37,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-09 01:27:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:51,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-09 01:27:51,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:51,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:27:51,948 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 80 treesize of output 34 [2024-11-09 01:27:52,149 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 80 treesize of output 34 [2024-11-09 01:27:54,065 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 138 treesize of output 65 [2024-11-09 01:27:57,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:27:57,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 106 [2024-11-09 01:27:59,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:27:59,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 206 treesize of output 109 [2024-11-09 01:28:00,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:00,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 206 treesize of output 109 [2024-11-09 01:28:01,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:01,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 206 treesize of output 109 [2024-11-09 01:28:02,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:02,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 201 treesize of output 119 [2024-11-09 01:28:04,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:04,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 216 treesize of output 122 [2024-11-09 01:28:05,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:05,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 211 treesize of output 132 [2024-11-09 01:28:07,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:07,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 145 [2024-11-09 01:28:09,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:09,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 251 treesize of output 170 [2024-11-09 01:28:10,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:10,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 265 treesize of output 177 [2024-11-09 01:28:26,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:26,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 344 treesize of output 202 [2024-11-09 01:28:36,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:28:36,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 406 treesize of output 148 [2024-11-09 01:28:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 516 proven. 96 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 01:28:40,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:28:58,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:28:58,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87585] [2024-11-09 01:28:58,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87585] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:28:58,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:28:58,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [34] total 40 [2024-11-09 01:28:58,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921845837] [2024-11-09 01:28:58,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:58,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:28:58,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:28:58,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:28:58,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1273, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 01:28:58,006 INFO L87 Difference]: Start difference. First operand 629 states and 816 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:29:21,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:21,051 INFO L93 Difference]: Finished difference Result 1192 states and 1537 transitions. [2024-11-09 01:29:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:29:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-09 01:29:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:21,060 INFO L225 Difference]: With dead ends: 1192 [2024-11-09 01:29:21,060 INFO L226 Difference]: Without dead ends: 623 [2024-11-09 01:29:21,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 45.8s TimeCoverageRelationStatistics Valid=312, Invalid=1494, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 01:29:21,063 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 114 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:21,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 627 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2024-11-09 01:29:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-09 01:29:21,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 621. [2024-11-09 01:29:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 494 states have (on average 1.2246963562753037) internal successors, (605), 499 states have internal predecessors, (605), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 95 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-09 01:29:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 805 transitions. [2024-11-09 01:29:21,153 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 805 transitions. Word has length 169 [2024-11-09 01:29:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:21,154 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 805 transitions. [2024-11-09 01:29:21,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:29:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 805 transitions. [2024-11-09 01:29:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 01:29:21,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:21,157 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:21,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-09 01:29:21,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:29:21,357 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:29:21,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash -260020524, now seen corresponding path program 1 times [2024-11-09 01:29:21,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:29:21,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286543172] [2024-11-09 01:29:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:21,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:29:21,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:29:21,363 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:29:21,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-09 01:29:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:21,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:29:21,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:29:21,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:29:21,931 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:29:21,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286543172] [2024-11-09 01:29:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286543172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:21,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:21,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:29:21,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249865070] [2024-11-09 01:29:21,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:21,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:29:21,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:29:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:29:21,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:29:21,935 INFO L87 Difference]: Start difference. First operand 621 states and 805 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:29:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:22,119 INFO L93 Difference]: Finished difference Result 1230 states and 1594 transitions. [2024-11-09 01:29:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:29:22,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-09 01:29:22,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:22,129 INFO L225 Difference]: With dead ends: 1230 [2024-11-09 01:29:22,130 INFO L226 Difference]: Without dead ends: 621 [2024-11-09 01:29:22,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:29:22,133 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:22,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:29:22,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-09 01:29:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2024-11-09 01:29:22,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 494 states have (on average 1.214574898785425) internal successors, (600), 499 states have internal predecessors, (600), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 95 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-09 01:29:22,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 800 transitions. [2024-11-09 01:29:22,239 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 800 transitions. Word has length 169 [2024-11-09 01:29:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:22,239 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 800 transitions. [2024-11-09 01:29:22,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:29:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 800 transitions. [2024-11-09 01:29:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 01:29:22,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:22,241 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:22,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-09 01:29:22,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:29:22,444 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:29:22,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:22,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2068530360, now seen corresponding path program 1 times [2024-11-09 01:29:22,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:29:22,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720811369] [2024-11-09 01:29:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:22,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:29:22,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:29:22,453 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:29:22,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 01:29:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:23,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:29:23,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:29:23,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:29:23,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:29:23,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720811369] [2024-11-09 01:29:23,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720811369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:23,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:23,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:29:23,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217368284] [2024-11-09 01:29:23,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:23,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:29:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:29:23,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:29:23,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:29:23,164 INFO L87 Difference]: Start difference. First operand 621 states and 800 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:29:23,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:23,291 INFO L93 Difference]: Finished difference Result 1194 states and 1530 transitions. [2024-11-09 01:29:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:29:23,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 171 [2024-11-09 01:29:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:23,296 INFO L225 Difference]: With dead ends: 1194 [2024-11-09 01:29:23,296 INFO L226 Difference]: Without dead ends: 633 [2024-11-09 01:29:23,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:29:23,298 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:23,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 583 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:29:23,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-09 01:29:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2024-11-09 01:29:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 506 states have (on average 1.209486166007905) internal successors, (612), 511 states have internal predecessors, (612), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 95 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-09 01:29:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 812 transitions. [2024-11-09 01:29:23,419 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 812 transitions. Word has length 171 [2024-11-09 01:29:23,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:23,421 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 812 transitions. [2024-11-09 01:29:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:29:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 812 transitions. [2024-11-09 01:29:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 01:29:23,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:23,424 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:23,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-09 01:29:23,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:29:23,625 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:29:23,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:23,626 INFO L85 PathProgramCache]: Analyzing trace with hash -881760528, now seen corresponding path program 1 times [2024-11-09 01:29:23,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:29:23,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299257286] [2024-11-09 01:29:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:23,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:29:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:29:23,631 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:29:23,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-09 01:29:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:24,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-09 01:29:24,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:24,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:29:24,862 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 49 treesize of output 21 [2024-11-09 01:29:25,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:25,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 54 [2024-11-09 01:29:26,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:26,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 54 [2024-11-09 01:29:26,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:26,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 54 [2024-11-09 01:29:27,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:27,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 64 [2024-11-09 01:29:27,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:27,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 77 [2024-11-09 01:29:28,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:28,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 124 treesize of output 90 [2024-11-09 01:29:29,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:29,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 139 treesize of output 93 [2024-11-09 01:29:30,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:30,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 139 treesize of output 93 [2024-11-09 01:29:31,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:31,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 134 treesize of output 103 [2024-11-09 01:29:32,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:32,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 144 treesize of output 116 [2024-11-09 01:29:33,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:33,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 174 treesize of output 141 [2024-11-09 01:29:34,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:34,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 188 treesize of output 148 [2024-11-09 01:29:35,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:35,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 188 treesize of output 148 [2024-11-09 01:29:36,160 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:36,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 253 treesize of output 97 [2024-11-09 01:29:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 587 proven. 57 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-09 01:29:37,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:43,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:29:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299257286] [2024-11-09 01:29:43,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299257286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:29:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1918778971] [2024-11-09 01:29:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:43,579 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:29:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:29:43,583 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:29:43,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 01:29:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:46,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-09 01:29:46,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:47,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 01:29:51,965 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 62 treesize of output 30 [2024-11-09 01:29:54,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:54,626 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 1 case distinctions, treesize of input 110 treesize of output 61 [2024-11-09 01:29:55,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:55,093 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 1 case distinctions, treesize of input 110 treesize of output 61 [2024-11-09 01:29:55,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:55,635 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 1 case distinctions, treesize of input 110 treesize of output 61 [2024-11-09 01:29:56,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:56,199 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 1 case distinctions, treesize of input 107 treesize of output 69 [2024-11-09 01:29:57,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:57,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 80 [2024-11-09 01:29:58,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:29:58,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 91 [2024-11-09 01:30:00,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:00,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 102 [2024-11-09 01:30:01,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:01,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 139 treesize of output 113 [2024-11-09 01:30:03,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:03,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 147 treesize of output 124 [2024-11-09 01:30:05,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:05,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 127 [2024-11-09 01:30:06,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:06,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 55 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 169 treesize of output 152 [2024-11-09 01:30:07,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:07,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 181 treesize of output 159 [2024-11-09 01:30:08,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:08,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 181 treesize of output 159 [2024-11-09 01:30:09,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:09,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 208 treesize of output 100 [2024-11-09 01:30:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 600 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 01:30:10,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:30:15,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1918778971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:30:15,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468109038] [2024-11-09 01:30:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:15,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:15,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:30:15,663 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:30:15,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 01:30:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:16,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 01:30:16,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:30:16,480 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 49 treesize of output 21 [2024-11-09 01:30:18,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:18,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 42 [2024-11-09 01:30:19,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:19,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 42 [2024-11-09 01:30:19,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:19,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 42 [2024-11-09 01:30:19,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:19,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 42 [2024-11-09 01:30:20,212 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:20,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 42 [2024-11-09 01:30:20,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:20,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 52 [2024-11-09 01:30:21,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:21,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 55 [2024-11-09 01:30:22,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:22,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 65 [2024-11-09 01:30:23,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:23,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 78 [2024-11-09 01:30:25,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:25,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 91 [2024-11-09 01:30:27,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:27,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 134 treesize of output 116 [2024-11-09 01:30:28,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:28,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 148 treesize of output 123 [2024-11-09 01:30:30,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:30,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 148 treesize of output 123 [2024-11-09 01:30:32,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:30:32,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 213 treesize of output 81 [2024-11-09 01:30:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 523 proven. 57 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 01:30:36,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:30:37,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468109038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:30:37,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:30:37,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 17] total 50 [2024-11-09 01:30:37,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14639426] [2024-11-09 01:30:37,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:30:37,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-09 01:30:37,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:30:37,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-09 01:30:37,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=3140, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 01:30:37,763 INFO L87 Difference]: Start difference. First operand 633 states and 812 transitions. Second operand has 51 states, 49 states have (on average 4.714285714285714) internal successors, (231), 48 states have internal predecessors, (231), 20 states have call successors, (59), 20 states have call predecessors, (59), 20 states have return successors, (59), 20 states have call predecessors, (59), 20 states have call successors, (59) [2024-11-09 01:31:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:42,590 INFO L93 Difference]: Finished difference Result 2049 states and 2584 transitions. [2024-11-09 01:31:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-09 01:31:42,592 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 49 states have (on average 4.714285714285714) internal successors, (231), 48 states have internal predecessors, (231), 20 states have call successors, (59), 20 states have call predecessors, (59), 20 states have return successors, (59), 20 states have call predecessors, (59), 20 states have call successors, (59) Word has length 171 [2024-11-09 01:31:42,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:42,599 INFO L225 Difference]: With dead ends: 2049 [2024-11-09 01:31:42,600 INFO L226 Difference]: Without dead ends: 1476 [2024-11-09 01:31:42,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 663 SyntacticMatches, 5 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2938 ImplicationChecksByTransitivity, 59.8s TimeCoverageRelationStatistics Valid=1793, Invalid=8509, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 01:31:42,606 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 833 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 4289 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 4289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:42,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 2175 Invalid, 4443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [154 Valid, 4289 Invalid, 0 Unknown, 0 Unchecked, 43.3s Time] [2024-11-09 01:31:42,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-09 01:31:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 990. [2024-11-09 01:31:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 753 states have (on average 1.1952191235059761) internal successors, (900), 761 states have internal predecessors, (900), 188 states have call successors, (188), 48 states have call predecessors, (188), 48 states have return successors, (188), 180 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-09 01:31:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1276 transitions. [2024-11-09 01:31:42,826 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1276 transitions. Word has length 171 [2024-11-09 01:31:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:42,827 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1276 transitions. [2024-11-09 01:31:42,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 49 states have (on average 4.714285714285714) internal successors, (231), 48 states have internal predecessors, (231), 20 states have call successors, (59), 20 states have call predecessors, (59), 20 states have return successors, (59), 20 states have call predecessors, (59), 20 states have call successors, (59) [2024-11-09 01:31:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1276 transitions. [2024-11-09 01:31:42,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 01:31:42,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:42,831 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:42,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-09 01:31:43,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 01:31:43,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-09 01:31:43,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:31:43,439 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:43,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash -383203726, now seen corresponding path program 1 times [2024-11-09 01:31:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:31:43,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320367613] [2024-11-09 01:31:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:43,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:31:43,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:31:43,442 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:31:43,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-09 01:31:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:44,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:31:44,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:44,149 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-09 01:31:44,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:31:44,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:31:44,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320367613] [2024-11-09 01:31:44,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320367613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:44,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:31:44,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:31:44,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928787198] [2024-11-09 01:31:44,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:44,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:31:44,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:31:44,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:31:44,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:31:44,152 INFO L87 Difference]: Start difference. First operand 990 states and 1276 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:31:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:44,715 INFO L93 Difference]: Finished difference Result 1795 states and 2273 transitions. [2024-11-09 01:31:44,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:31:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 171 [2024-11-09 01:31:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:44,729 INFO L225 Difference]: With dead ends: 1795 [2024-11-09 01:31:44,729 INFO L226 Difference]: Without dead ends: 841 [2024-11-09 01:31:44,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:31:44,733 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:44,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 606 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:31:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-09 01:31:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 809. [2024-11-09 01:31:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 629 states have (on average 1.192368839427663) internal successors, (750), 632 states have internal predecessors, (750), 136 states have call successors, (136), 43 states have call predecessors, (136), 43 states have return successors, (136), 133 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-09 01:31:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1022 transitions. [2024-11-09 01:31:44,947 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1022 transitions. Word has length 171 [2024-11-09 01:31:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:44,948 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1022 transitions. [2024-11-09 01:31:44,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:31:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1022 transitions. [2024-11-09 01:31:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:31:44,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:44,951 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:44,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-09 01:31:45,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:31:45,152 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:45,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:45,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1019142403, now seen corresponding path program 1 times [2024-11-09 01:31:45,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:31:45,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137574247] [2024-11-09 01:31:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:45,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:31:45,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:31:45,154 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:31:45,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-09 01:31:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:46,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-09 01:31:46,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:46,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:31:46,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 71 [2024-11-09 01:31:46,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:46,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 92 [2024-11-09 01:31:47,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:47,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 92 [2024-11-09 01:31:47,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:47,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 92 [2024-11-09 01:31:48,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:48,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 92 [2024-11-09 01:31:49,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:49,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 93 [2024-11-09 01:31:49,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:49,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 83 [2024-11-09 01:31:50,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:50,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-09 01:31:51,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:51,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-09 01:31:51,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:51,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-09 01:31:52,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 80 [2024-11-09 01:31:54,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:54,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 89 [2024-11-09 01:31:54,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:54,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 99 [2024-11-09 01:31:56,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:56,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 115 [2024-11-09 01:31:56,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:56,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 128 treesize of output 124 [2024-11-09 01:31:57,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:57,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 124 treesize of output 135 [2024-11-09 01:31:57,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:57,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 129 treesize of output 140 [2024-11-09 01:31:58,553 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:31:58,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 202 treesize of output 96 [2024-11-09 01:31:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 28 proven. 584 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 01:31:58,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:31:59,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:31:59,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137574247] [2024-11-09 01:31:59,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137574247] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:59,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:31:59,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 23 [2024-11-09 01:31:59,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645930138] [2024-11-09 01:31:59,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:59,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:31:59,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:31:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:31:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2024-11-09 01:31:59,534 INFO L87 Difference]: Start difference. First operand 809 states and 1022 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:32:04,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:04,769 INFO L93 Difference]: Finished difference Result 2116 states and 2666 transitions. [2024-11-09 01:32:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:32:04,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 173 [2024-11-09 01:32:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:04,775 INFO L225 Difference]: With dead ends: 2116 [2024-11-09 01:32:04,775 INFO L226 Difference]: Without dead ends: 1371 [2024-11-09 01:32:04,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2024-11-09 01:32:04,778 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 93 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:04,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 773 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 01:32:04,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-09 01:32:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1269. [2024-11-09 01:32:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1023 states have (on average 1.2013685239491692) internal successors, (1229), 1032 states have internal predecessors, (1229), 186 states have call successors, (186), 59 states have call predecessors, (186), 59 states have return successors, (186), 177 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-09 01:32:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1601 transitions. [2024-11-09 01:32:04,969 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1601 transitions. Word has length 173 [2024-11-09 01:32:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:04,970 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1601 transitions. [2024-11-09 01:32:04,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:32:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1601 transitions. [2024-11-09 01:32:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:32:04,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:04,972 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:04,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-09 01:32:05,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:05,173 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:05,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:05,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1437770371, now seen corresponding path program 1 times [2024-11-09 01:32:05,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:32:05,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816185206] [2024-11-09 01:32:05,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:05,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:05,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:32:05,176 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:32:05,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-09 01:32:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:06,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:32:06,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:06,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:32:06,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:06,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2024-11-09 01:32:06,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:06,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 52 [2024-11-09 01:32:06,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:06,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 71 [2024-11-09 01:32:06,568 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:06,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 74 [2024-11-09 01:32:07,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:07,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 43 [2024-11-09 01:32:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:32:07,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:32:07,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:32:07,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816185206] [2024-11-09 01:32:07,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816185206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:07,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:07,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 01:32:07,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723211507] [2024-11-09 01:32:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:07,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:32:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:32:07,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:32:07,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:32:07,281 INFO L87 Difference]: Start difference. First operand 1269 states and 1601 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:32:08,639 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 [] [2024-11-09 01:32:16,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:16,226 INFO L93 Difference]: Finished difference Result 1882 states and 2355 transitions. [2024-11-09 01:32:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 01:32:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2024-11-09 01:32:16,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:16,236 INFO L225 Difference]: With dead ends: 1882 [2024-11-09 01:32:16,236 INFO L226 Difference]: Without dead ends: 1880 [2024-11-09 01:32:16,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:32:16,238 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 242 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:16,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 717 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-09 01:32:16,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-11-09 01:32:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1293. [2024-11-09 01:32:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1047 states have (on average 1.1967526265520534) internal successors, (1253), 1056 states have internal predecessors, (1253), 186 states have call successors, (186), 59 states have call predecessors, (186), 59 states have return successors, (186), 177 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-09 01:32:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1625 transitions. [2024-11-09 01:32:16,492 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1625 transitions. Word has length 173 [2024-11-09 01:32:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:16,493 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1625 transitions. [2024-11-09 01:32:16,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:32:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1625 transitions. [2024-11-09 01:32:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:32:16,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:16,496 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:16,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-09 01:32:16,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:16,697 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:16,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:16,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1435923329, now seen corresponding path program 1 times [2024-11-09 01:32:16,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:32:16,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388509920] [2024-11-09 01:32:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:16,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:16,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:32:16,700 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:32:16,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-09 01:32:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:17,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:32:17,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:17,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 01:32:17,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-09 01:32:17,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:17,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 49 [2024-11-09 01:32:17,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:17,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 56 [2024-11-09 01:32:18,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:18,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 75 [2024-11-09 01:32:18,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:18,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-09 01:32:18,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:18,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 48 [2024-11-09 01:32:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2024-11-09 01:32:18,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:32:18,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:32:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388509920] [2024-11-09 01:32:18,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388509920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:18,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:18,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:32:18,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30235267] [2024-11-09 01:32:18,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:18,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:32:18,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:32:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:32:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:32:18,945 INFO L87 Difference]: Start difference. First operand 1293 states and 1625 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-09 01:32:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:26,504 INFO L93 Difference]: Finished difference Result 3073 states and 3845 transitions. [2024-11-09 01:32:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:32:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 173 [2024-11-09 01:32:26,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:26,530 INFO L225 Difference]: With dead ends: 3073 [2024-11-09 01:32:26,530 INFO L226 Difference]: Without dead ends: 1844 [2024-11-09 01:32:26,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:32:26,534 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 388 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:26,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 498 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-09 01:32:26,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-09 01:32:26,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1293. [2024-11-09 01:32:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1047 states have (on average 1.189111747851003) internal successors, (1245), 1056 states have internal predecessors, (1245), 186 states have call successors, (186), 59 states have call predecessors, (186), 59 states have return successors, (186), 177 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-09 01:32:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1617 transitions. [2024-11-09 01:32:26,840 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1617 transitions. Word has length 173 [2024-11-09 01:32:26,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:26,841 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1617 transitions. [2024-11-09 01:32:26,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-09 01:32:26,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1617 transitions. [2024-11-09 01:32:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:32:26,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:26,844 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:26,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-09 01:32:27,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:27,045 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:27,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash 339084033, now seen corresponding path program 1 times [2024-11-09 01:32:27,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:32:27,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833128897] [2024-11-09 01:32:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:27,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:27,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:32:27,048 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:32:27,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-09 01:32:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:28,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 01:32:28,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:32:28,334 INFO L224 Elim1Store]: Index analysis took 195 ms [2024-11-09 01:32:28,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 131 [2024-11-09 01:32:29,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:29,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 170 [2024-11-09 01:32:30,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:30,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 170 [2024-11-09 01:32:32,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:32,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 170 [2024-11-09 01:32:33,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:33,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 170 [2024-11-09 01:32:35,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:35,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 161 [2024-11-09 01:32:37,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:37,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 158 [2024-11-09 01:32:39,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:39,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 140 treesize of output 148 [2024-11-09 01:32:41,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:41,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 125 treesize of output 145 [2024-11-09 01:32:42,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:42,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 125 treesize of output 145 [2024-11-09 01:32:44,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:44,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 130 treesize of output 135 [2024-11-09 01:32:45,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:45,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 115 treesize of output 132 [2024-11-09 01:32:47,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:47,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 115 treesize of output 132 [2024-11-09 01:32:48,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:48,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 135 treesize of output 135 [2024-11-09 01:32:49,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:49,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 134 treesize of output 124 [2024-11-09 01:32:49,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:49,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 115 treesize of output 132 [2024-11-09 01:32:50,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:50,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 125 treesize of output 138 [2024-11-09 01:32:51,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:51,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 152 treesize of output 74 [2024-11-09 01:32:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 704 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 01:32:52,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:32:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:32:52,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:32:52,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833128897] [2024-11-09 01:32:52,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833128897] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:52,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:32:52,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 18 [2024-11-09 01:32:52,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853100708] [2024-11-09 01:32:52,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:52,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:32:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:32:52,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:32:52,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:32:52,508 INFO L87 Difference]: Start difference. First operand 1293 states and 1617 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:32:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:56,358 INFO L93 Difference]: Finished difference Result 2769 states and 3454 transitions. [2024-11-09 01:32:56,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:32:56,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 173 [2024-11-09 01:32:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:56,365 INFO L225 Difference]: With dead ends: 2769 [2024-11-09 01:32:56,365 INFO L226 Difference]: Without dead ends: 1540 [2024-11-09 01:32:56,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:32:56,369 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 118 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:56,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 666 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 01:32:56,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-09 01:32:56,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1301. [2024-11-09 01:32:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1052 states have (on average 1.1806083650190113) internal successors, (1242), 1061 states have internal predecessors, (1242), 188 states have call successors, (188), 60 states have call predecessors, (188), 60 states have return successors, (188), 179 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-09 01:32:56,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1618 transitions. [2024-11-09 01:32:56,782 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1618 transitions. Word has length 173 [2024-11-09 01:32:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:56,783 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1618 transitions. [2024-11-09 01:32:56,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:32:56,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1618 transitions. [2024-11-09 01:32:56,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:32:56,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:56,790 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:56,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-09 01:32:56,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:56,994 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:56,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:56,995 INFO L85 PathProgramCache]: Analyzing trace with hash -421606163, now seen corresponding path program 1 times [2024-11-09 01:32:56,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:32:56,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810155259] [2024-11-09 01:32:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:56,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:32:56,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:32:56,999 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:32:57,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-09 01:32:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:58,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 01:32:58,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:58,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:32:58,427 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 37 treesize of output 30 [2024-11-09 01:32:59,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:59,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 48 [2024-11-09 01:32:59,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:32:59,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 51 [2024-11-09 01:33:00,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:00,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 61 [2024-11-09 01:33:00,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:00,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 59 [2024-11-09 01:33:01,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:01,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 59 [2024-11-09 01:33:02,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:02,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 59 [2024-11-09 01:33:02,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 99 [2024-11-09 01:33:04,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:04,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 158 treesize of output 136 [2024-11-09 01:33:05,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:05,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 154 treesize of output 156 [2024-11-09 01:33:05,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:05,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 173 treesize of output 163 [2024-11-09 01:33:06,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:06,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 184 treesize of output 78 [2024-11-09 01:33:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 479 proven. 117 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 01:33:07,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:33:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:33:09,609 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:33:09,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810155259] [2024-11-09 01:33:09,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810155259] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:33:09,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:33:09,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [23] total 28 [2024-11-09 01:33:09,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836559225] [2024-11-09 01:33:09,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:33:09,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:33:09,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:33:09,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:33:09,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:33:09,613 INFO L87 Difference]: Start difference. First operand 1301 states and 1618 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:33:13,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 01:33:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:33:17,917 INFO L93 Difference]: Finished difference Result 3267 states and 4057 transitions. [2024-11-09 01:33:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:33:17,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 173 [2024-11-09 01:33:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:33:17,938 INFO L225 Difference]: With dead ends: 3267 [2024-11-09 01:33:17,943 INFO L226 Difference]: Without dead ends: 2038 [2024-11-09 01:33:17,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:33:17,946 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 310 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:33:17,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 436 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-09 01:33:17,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2024-11-09 01:33:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 1801. [2024-11-09 01:33:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1515 states have (on average 1.188118811881188) internal successors, (1800), 1530 states have internal predecessors, (1800), 214 states have call successors, (214), 71 states have call predecessors, (214), 71 states have return successors, (214), 199 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-09 01:33:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2228 transitions. [2024-11-09 01:33:18,501 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2228 transitions. Word has length 173 [2024-11-09 01:33:18,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:33:18,502 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2228 transitions. [2024-11-09 01:33:18,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:33:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2228 transitions. [2024-11-09 01:33:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:33:18,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:33:18,506 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:33:18,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:33:18,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:33:18,707 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:33:18,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:33:18,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1889621499, now seen corresponding path program 1 times [2024-11-09 01:33:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:33:18,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573434160] [2024-11-09 01:33:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:33:18,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:33:18,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:33:18,710 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:33:18,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-09 01:33:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:33:19,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 01:33:19,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:33:19,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 01:33:20,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-09 01:33:20,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-09 01:33:20,759 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:20,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-09 01:33:21,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:21,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-09 01:33:21,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:21,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-09 01:33:21,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:21,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-09 01:33:22,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:22,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-09 01:33:22,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:22,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 77 [2024-11-09 01:33:23,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:23,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 113 [2024-11-09 01:33:23,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:23,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 135 treesize of output 116 [2024-11-09 01:33:25,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:25,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 54 [2024-11-09 01:33:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 508 proven. 84 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-09 01:33:25,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:33:26,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:33:26,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573434160] [2024-11-09 01:33:26,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573434160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:33:26,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [764120982] [2024-11-09 01:33:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:33:26,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:33:26,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:33:26,462 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:33:26,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-09 01:33:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:33:29,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 01:33:29,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:33:30,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 01:33:32,169 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 39 treesize of output 30 [2024-11-09 01:33:32,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:32,905 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 1 case distinctions, treesize of input 32 treesize of output 23 [2024-11-09 01:33:33,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:33,352 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 1 case distinctions, treesize of input 29 treesize of output 31 [2024-11-09 01:33:34,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:34,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 01:33:34,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:34,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 01:33:35,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:35,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-09 01:33:35,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:35,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2024-11-09 01:33:36,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:36,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 70 [2024-11-09 01:33:38,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:38,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 96 treesize of output 104 [2024-11-09 01:33:38,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:38,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 108 [2024-11-09 01:33:40,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:40,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 53 [2024-11-09 01:33:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 512 proven. 84 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 01:33:41,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:33:41,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [764120982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:33:41,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404044972] [2024-11-09 01:33:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:33:41,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:33:41,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:33:41,813 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:33:41,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 01:33:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:33:42,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 01:33:42,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:33:42,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-09 01:33:42,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:42,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-09 01:33:43,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:43,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-09 01:33:43,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:43,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-09 01:33:44,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:44,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-09 01:33:45,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:45,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 59 [2024-11-09 01:33:45,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:45,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-09 01:33:46,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:46,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 103 [2024-11-09 01:33:48,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:48,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 140 treesize of output 139 [2024-11-09 01:33:49,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:49,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 150 treesize of output 143 [2024-11-09 01:33:50,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:50,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 151 treesize of output 63 [2024-11-09 01:33:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 572 proven. 84 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 01:33:52,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:33:52,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404044972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:33:52,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:33:52,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 42 [2024-11-09 01:33:52,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710164660] [2024-11-09 01:33:52,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:33:52,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-09 01:33:52,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:33:52,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-09 01:33:52,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1806, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 01:33:52,441 INFO L87 Difference]: Start difference. First operand 1801 states and 2228 transitions. Second operand has 42 states, 38 states have (on average 5.7105263157894735) internal successors, (217), 38 states have internal predecessors, (217), 16 states have call successors, (54), 15 states have call predecessors, (54), 16 states have return successors, (54), 15 states have call predecessors, (54), 16 states have call successors, (54) [2024-11-09 01:33:57,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:33:58,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:34:01,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 01:34:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:34:39,059 INFO L93 Difference]: Finished difference Result 3919 states and 4761 transitions. [2024-11-09 01:34:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 01:34:39,060 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 38 states have (on average 5.7105263157894735) internal successors, (217), 38 states have internal predecessors, (217), 16 states have call successors, (54), 15 states have call predecessors, (54), 16 states have return successors, (54), 15 states have call predecessors, (54), 16 states have call successors, (54) Word has length 173 [2024-11-09 01:34:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:34:39,070 INFO L225 Difference]: With dead ends: 3919 [2024-11-09 01:34:39,071 INFO L226 Difference]: Without dead ends: 2194 [2024-11-09 01:34:39,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 575 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1740 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=1308, Invalid=5012, Unknown=0, NotChecked=0, Total=6320 [2024-11-09 01:34:39,076 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1197 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:34:39,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 1493 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 36.6s Time] [2024-11-09 01:34:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2024-11-09 01:34:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 1397. [2024-11-09 01:34:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1138 states have (on average 1.1625659050966608) internal successors, (1323), 1146 states have internal predecessors, (1323), 170 states have call successors, (170), 88 states have call predecessors, (170), 88 states have return successors, (170), 162 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-09 01:34:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1663 transitions. [2024-11-09 01:34:39,541 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1663 transitions. Word has length 173 [2024-11-09 01:34:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:34:39,542 INFO L471 AbstractCegarLoop]: Abstraction has 1397 states and 1663 transitions. [2024-11-09 01:34:39,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 38 states have (on average 5.7105263157894735) internal successors, (217), 38 states have internal predecessors, (217), 16 states have call successors, (54), 15 states have call predecessors, (54), 16 states have return successors, (54), 15 states have call predecessors, (54), 16 states have call successors, (54) [2024-11-09 01:34:39,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1663 transitions. [2024-11-09 01:34:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:34:39,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:34:39,545 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:34:39,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 01:34:39,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 01:34:39,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2024-11-09 01:34:40,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:34:40,146 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:34:40,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:34:40,147 INFO L85 PathProgramCache]: Analyzing trace with hash 964597231, now seen corresponding path program 1 times [2024-11-09 01:34:40,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:34:40,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378096482] [2024-11-09 01:34:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:40,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:34:40,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:34:40,150 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:34:40,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-09 01:34:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:34:41,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 01:34:41,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:34:41,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:34:41,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-09 01:34:41,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-09 01:34:41,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:41,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-09 01:34:42,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:42,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-11-09 01:34:42,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:42,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-11-09 01:34:42,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:42,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-09 01:34:43,037 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:43,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-11-09 01:34:43,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 98 [2024-11-09 01:34:45,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:45,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 159 treesize of output 155 [2024-11-09 01:34:45,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:45,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 164 treesize of output 160 [2024-11-09 01:34:46,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:34:46,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 175 treesize of output 75 [2024-11-09 01:34:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 619 proven. 45 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 01:34:47,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:34:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:34:49,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:34:49,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378096482] [2024-11-09 01:34:49,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378096482] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:34:49,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:34:49,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2024-11-09 01:34:49,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241728566] [2024-11-09 01:34:49,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:34:49,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:34:49,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:34:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:34:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:34:49,127 INFO L87 Difference]: Start difference. First operand 1397 states and 1663 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:34:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:34:56,093 INFO L93 Difference]: Finished difference Result 3414 states and 4074 transitions. [2024-11-09 01:34:56,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:34:56,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 173 [2024-11-09 01:34:56,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:34:56,106 INFO L225 Difference]: With dead ends: 3414 [2024-11-09 01:34:56,106 INFO L226 Difference]: Without dead ends: 2020 [2024-11-09 01:34:56,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-11-09 01:34:56,110 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 265 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:34:56,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 534 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-09 01:34:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2024-11-09 01:34:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1448. [2024-11-09 01:34:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1189 states have (on average 1.1631623212783853) internal successors, (1383), 1197 states have internal predecessors, (1383), 170 states have call successors, (170), 88 states have call predecessors, (170), 88 states have return successors, (170), 162 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-09 01:34:56,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1723 transitions. [2024-11-09 01:34:56,670 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1723 transitions. Word has length 173 [2024-11-09 01:34:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:34:56,670 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 1723 transitions. [2024-11-09 01:34:56,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:34:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1723 transitions. [2024-11-09 01:34:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:34:56,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:34:56,673 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:34:56,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-09 01:34:56,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:34:56,874 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:34:56,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:34:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1605263784, now seen corresponding path program 1 times [2024-11-09 01:34:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:34:56,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888623795] [2024-11-09 01:34:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:34:56,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:34:56,880 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:34:56,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-09 01:34:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:34:57,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:34:57,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:34:57,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2024-11-09 01:34:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 4 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:34:57,950 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:34:58,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 25 [2024-11-09 01:34:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:34:58,414 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:34:58,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888623795] [2024-11-09 01:34:58,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888623795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:34:58,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [579650428] [2024-11-09 01:34:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:58,415 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:34:58,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:34:58,418 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:34:58,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-09 01:35:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:00,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:35:00,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:00,614 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 97 treesize of output 43 [2024-11-09 01:35:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 4 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:35:00,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:35:00,869 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 61 treesize of output 25 [2024-11-09 01:35:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:35:00,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [579650428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:35:00,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547718152] [2024-11-09 01:35:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:00,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:35:00,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:35:00,887 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:35:00,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 01:35:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:01,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:35:01,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:01,783 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 126 treesize of output 54 [2024-11-09 01:35:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 4 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:35:01,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:35:02,429 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 91 treesize of output 37 [2024-11-09 01:35:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-09 01:35:02,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547718152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:35:02,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:35:02,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 8, 10, 9] total 16 [2024-11-09 01:35:02,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048476204] [2024-11-09 01:35:02,445 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:35:02,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 01:35:02,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:35:02,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 01:35:02,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:35:02,448 INFO L87 Difference]: Start difference. First operand 1448 states and 1723 transitions. Second operand has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-09 01:35:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:35:09,068 INFO L93 Difference]: Finished difference Result 2997 states and 3563 transitions. [2024-11-09 01:35:09,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 01:35:09,070 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) Word has length 173 [2024-11-09 01:35:09,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:35:09,076 INFO L225 Difference]: With dead ends: 2997 [2024-11-09 01:35:09,077 INFO L226 Difference]: Without dead ends: 1456 [2024-11-09 01:35:09,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1017 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-09 01:35:09,082 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:35:09,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 757 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 01:35:09,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-11-09 01:35:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1432. [2024-11-09 01:35:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1173 states have (on average 1.1517476555839727) internal successors, (1351), 1181 states have internal predecessors, (1351), 170 states have call successors, (170), 88 states have call predecessors, (170), 88 states have return successors, (170), 162 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-09 01:35:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1691 transitions. [2024-11-09 01:35:09,579 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1691 transitions. Word has length 173 [2024-11-09 01:35:09,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:35:09,579 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 1691 transitions. [2024-11-09 01:35:09,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-09 01:35:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1691 transitions. [2024-11-09 01:35:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 01:35:09,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:35:09,583 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:35:09,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:09,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:09,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-09 01:35:10,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -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_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:35:10,184 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:35:10,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:35:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1950091946, now seen corresponding path program 1 times [2024-11-09 01:35:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:35:10,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732891174] [2024-11-09 01:35:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:10,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:35:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:35:10,187 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:35:10,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47aab8b2-2470-4a14-84a1-bac45786ecbc/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-09 01:35:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:11,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-09 01:35:11,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:11,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:35:11,857 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 78 treesize of output 32 [2024-11-09 01:35:12,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:12,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 52 [2024-11-09 01:35:13,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:13,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 52 [2024-11-09 01:35:13,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:13,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 62 [2024-11-09 01:35:14,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:14,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 65 [2024-11-09 01:35:14,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:14,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 75 [2024-11-09 01:35:15,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:15,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 122 treesize of output 88 [2024-11-09 01:35:16,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:16,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 137 treesize of output 91 [2024-11-09 01:35:17,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:17,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 101 [2024-11-09 01:35:18,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:18,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 142 treesize of output 114 [2024-11-09 01:35:20,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:20,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 152 treesize of output 127 [2024-11-09 01:35:21,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:21,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 182 treesize of output 152 [2024-11-09 01:35:22,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:22,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 191 treesize of output 160 [2024-11-09 01:35:29,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:29,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 273 treesize of output 188 [2024-11-09 01:35:33,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:35:33,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 338 treesize of output 128 [2024-11-09 01:35:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 584 proven. 108 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 01:35:40,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:36:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 01:36:01,473 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:36:01,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732891174] [2024-11-09 01:36:01,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732891174] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:36:01,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:36:01,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [26] total 32 [2024-11-09 01:36:01,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80836928] [2024-11-09 01:36:01,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:36:01,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:36:01,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:36:01,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:36:01,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:36:01,476 INFO L87 Difference]: Start difference. First operand 1432 states and 1691 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 01:36:27,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]