./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 671a45704fa186ff8f8ae16fa1f231720ab75623ea1dd3c585bf6353937ced8a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:02:58,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:02:58,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:02:58,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:02:58,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:02:58,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:02:58,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:02:58,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:02:58,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:02:58,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:02:58,859 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:02:58,859 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:02:58,860 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:02:58,860 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:02:58,861 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:02:58,861 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:02:58,862 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:02:58,862 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:02:58,863 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:02:58,863 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:02:58,864 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:02:58,865 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:02:58,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:02:58,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:02:58,866 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:02:58,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:02:58,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:02:58,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:02:58,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:02:58,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:02:58,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:02:58,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:02:58,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:02:58,869 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:02:58,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:02:58,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:02:58,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:02:58,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:02:58,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:02:58,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:02:58,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:02:58,871 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:02:58,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:02:58,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:02:58,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:02:58,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:02:58,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:02:58,872 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_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 671a45704fa186ff8f8ae16fa1f231720ab75623ea1dd3c585bf6353937ced8a [2023-12-02 16:02:59,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:02:59,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:02:59,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:02:59,133 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:02:59,133 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:02:59,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i [2023-12-02 16:03:01,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:03:02,030 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:03:02,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i [2023-12-02 16:03:02,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data/e7ce74d8a/432031dd1e7e46d9a2e4454c3db5c943/FLAG27fe9a1ba [2023-12-02 16:03:02,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data/e7ce74d8a/432031dd1e7e46d9a2e4454c3db5c943 [2023-12-02 16:03:02,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:03:02,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:03:02,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:03:02,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:03:02,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:03:02,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f7173a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02, skipping insertion in model container [2023-12-02 16:03:02,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,110 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:03:02,257 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i[916,929] [2023-12-02 16:03:02,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:03:02,319 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:03:02,332 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i[916,929] [2023-12-02 16:03:02,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:03:02,380 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:03:02,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02 WrapperNode [2023-12-02 16:03:02,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:03:02,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:03:02,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:03:02,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:03:02,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,437 INFO L138 Inliner]: procedures = 29, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 304 [2023-12-02 16:03:02,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:03:02,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:03:02,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:03:02,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:03:02,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:03:02,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:03:02,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:03:02,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:03:02,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (1/1) ... [2023-12-02 16:03:02,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:03:02,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:03:02,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:03:02,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:03:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:03:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 16:03:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:03:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 16:03:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:03:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 16:03:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:03:02,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:03:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:03:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:03:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:03:02,722 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:03:02,724 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:03:03,047 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:03:03,454 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:03:03,455 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:03:03,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:03:03 BoogieIcfgContainer [2023-12-02 16:03:03,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:03:03,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:03:03,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:03:03,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:03:03,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:03:02" (1/3) ... [2023-12-02 16:03:03,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0b1201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:03:03, skipping insertion in model container [2023-12-02 16:03:03,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:02" (2/3) ... [2023-12-02 16:03:03,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0b1201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:03:03, skipping insertion in model container [2023-12-02 16:03:03,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:03:03" (3/3) ... [2023-12-02 16:03:03,466 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-9.i [2023-12-02 16:03:03,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:03:03,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:03:03,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:03:03,562 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@446d5817, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:03:03,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:03:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 16:03:03,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:03,576 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:03,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:03,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash 231201762, now seen corresponding path program 1 times [2023-12-02 16:03:03,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:03:03,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658797594] [2023-12-02 16:03:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:03:03,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:03:03,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079749063] [2023-12-02 16:03:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:03,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:03:03,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:03:03,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:03:03,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:03:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:03:04,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:03:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:03:04,604 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:03:04,606 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:03:04,607 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:03:04,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:03:04,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 16:03:04,814 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:03:04,817 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:03:04,857 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-12-02 16:03:04,859 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-12-02 16:03:04,860 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated [2023-12-02 16:03:04,861 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated [2023-12-02 16:03:04,861 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 16:03:04,862 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-12-02 16:03:04,863 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated [2023-12-02 16:03:04,864 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated [2023-12-02 16:03:04,865 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-12-02 16:03:04,865 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 16:03:04,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-12-02 16:03:04,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-12-02 16:03:04,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-12-02 16:03:04,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 16:03:04,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 16:03:04,867 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-12-02 16:03:04,867 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-12-02 16:03:04,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-12-02 16:03:04,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-12-02 16:03:04,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-12-02 16:03:04,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-12-02 16:03:04,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-12-02 16:03:04,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:03:04 BoogieIcfgContainer [2023-12-02 16:03:04,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:03:04,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:03:04,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:03:04,887 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:03:04,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:03:03" (3/4) ... [2023-12-02 16:03:04,889 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:03:04,890 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:03:04,891 INFO L158 Benchmark]: Toolchain (without parser) took 2828.40ms. Allocated memory is still 157.3MB. Free memory was 121.4MB in the beginning and 67.5MB in the end (delta: 53.9MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2023-12-02 16:03:04,891 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:03:04,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.90ms. Allocated memory is still 157.3MB. Free memory was 121.4MB in the beginning and 107.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:03:04,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.88ms. Allocated memory is still 157.3MB. Free memory was 107.6MB in the beginning and 104.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:03:04,893 INFO L158 Benchmark]: Boogie Preprocessor took 46.57ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:03:04,894 INFO L158 Benchmark]: RCFGBuilder took 970.98ms. Allocated memory is still 157.3MB. Free memory was 102.5MB in the beginning and 44.9MB in the end (delta: 57.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-12-02 16:03:04,894 INFO L158 Benchmark]: TraceAbstraction took 1426.56ms. Allocated memory is still 157.3MB. Free memory was 44.1MB in the beginning and 68.6MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:03:04,895 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 157.3MB. Free memory was 68.6MB in the beginning and 67.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:03:04,898 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.90ms. Allocated memory is still 157.3MB. Free memory was 121.4MB in the beginning and 107.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.88ms. Allocated memory is still 157.3MB. Free memory was 107.6MB in the beginning and 104.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.57ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 970.98ms. Allocated memory is still 157.3MB. Free memory was 102.5MB in the beginning and 44.9MB in the end (delta: 57.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1426.56ms. Allocated memory is still 157.3MB. Free memory was 44.1MB in the beginning and 68.6MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.38ms. Allocated memory is still 157.3MB. Free memory was 68.6MB in the beginning and 67.5MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 61, overapproximation of shiftLeft at line 68. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L45] unsigned char* WrapperStruct0_var_1_1_Pointer = &(WrapperStruct0.var_1_1); [L46] unsigned char* WrapperStruct0_var_1_3_Pointer = &(WrapperStruct0.var_1_3); [L47] unsigned char* WrapperStruct0_var_1_7_Pointer = &(WrapperStruct0.var_1_7); [L48] signed short int* WrapperStruct0_var_1_8_Pointer = &(WrapperStruct0.var_1_8); [L49] unsigned char* WrapperStruct0_var_1_9_Pointer = &(WrapperStruct0.var_1_9); [L50] double* WrapperStruct0_var_1_10_Pointer = &(WrapperStruct0.var_1_10); [L51] double* WrapperStruct0_var_1_11_Pointer = &(WrapperStruct0.var_1_11); [L52] signed short int* WrapperStruct0_var_1_12_Pointer = &(WrapperStruct0.var_1_12); [L53] signed long int* WrapperStruct0_var_1_14_Pointer = &(WrapperStruct0.var_1_14); [L54] unsigned char last_1_WrapperStruct0_var_1_1 = 10; [L55] double last_1_WrapperStruct0_var_1_10 = 9.2; [L56] signed short int last_1_WrapperStruct0_var_1_12 = 1; [L57] signed long int last_1_WrapperStruct0_var_1_14 = -16; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L98] EXPR WrapperStruct0.var_1_1 [L98] last_1_WrapperStruct0_var_1_1 = WrapperStruct0.var_1_1 [L99] EXPR WrapperStruct0.var_1_10 [L99] last_1_WrapperStruct0_var_1_10 = WrapperStruct0.var_1_10 [L100] EXPR WrapperStruct0.var_1_12 [L100] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L101] EXPR WrapperStruct0.var_1_14 [L101] last_1_WrapperStruct0_var_1_14 = WrapperStruct0.var_1_14 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L88] WrapperStruct0.var_1_3 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L89] CALL assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L90] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L90] CALL assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L91] WrapperStruct0.var_1_7 = __VERIFIER_nondet_uchar() [L92] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L92] CALL assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L93] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L93] CALL assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L94] WrapperStruct0.var_1_11 = __VERIFIER_nondet_double() [L95] EXPR WrapperStruct0.var_1_11 [L95] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F [L95] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) [L95] EXPR WrapperStruct0.var_1_11 [L95] EXPR WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F [L95] EXPR WrapperStruct0.var_1_11 [L95] EXPR WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F [L95] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] CALL assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L112] RET updateVariables() [L113] CALL step() [L61] unsigned char stepLocal_0 = last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10; [L62] COND TRUE ((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || stepLocal_0 [L63] EXPR \read(*WrapperStruct0_var_1_3_Pointer) [L63] EXPR (((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1) [L63] EXPR \read(*WrapperStruct0_var_1_3_Pointer) [L63] EXPR (((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1) [L63] (*(WrapperStruct0_var_1_12_Pointer)) = (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))) [L67] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L67] (*(WrapperStruct0_var_1_14_Pointer)) = (*(WrapperStruct0_var_1_12_Pointer)) [L68] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L68] EXPR 10 << (*(WrapperStruct0_var_1_12_Pointer)) [L68] EXPR \read(*WrapperStruct0_var_1_3_Pointer) [L68] EXPR \read(*WrapperStruct0_var_1_14_Pointer) [L68] COND TRUE (10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer))) [L69] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L69] EXPR \read(*WrapperStruct0_var_1_14_Pointer) [L69] (*(WrapperStruct0_var_1_8_Pointer)) = ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))) [L71] (*(WrapperStruct0_var_1_9_Pointer)) = 64 [L72] EXPR \read(*WrapperStruct0_var_1_11_Pointer) [L72] (*(WrapperStruct0_var_1_10_Pointer)) = (*(WrapperStruct0_var_1_11_Pointer)) [L73] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L73] COND FALSE !((*(WrapperStruct0_var_1_12_Pointer)) <= 16) [L76] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L76] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L76] EXPR (((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))) [L76] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L76] EXPR (((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))) [L76] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L76] COND FALSE !((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) [L83] EXPR \read(*WrapperStruct0_var_1_3_Pointer) [L83] (*(WrapperStruct0_var_1_1_Pointer)) = (*(WrapperStruct0_var_1_3_Pointer)) [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR ((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) [L104] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L104] EXPR (((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))) [L104] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L104] EXPR (((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))) [L104] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L104] EXPR ((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) [L104] EXPR \read(*WrapperStruct0_var_1_1_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_3_Pointer) [L104] EXPR ((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) [L104] EXPR ((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) [L104] EXPR (((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR 10 << (*(WrapperStruct0_var_1_12_Pointer)) [L104] EXPR \read(*WrapperStruct0_var_1_3_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_14_Pointer) [L104] EXPR ((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1 [L104] EXPR (((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1) [L104] EXPR ((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64)) [L104] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L104] EXPR ((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64)) [L104] EXPR (((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(WrapperStruct0_var_1_10_Pointer)) == ((double) (*(WrapperStruct0_var_1_11_Pointer)))) [L104] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_11_Pointer) [L104] EXPR (((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(WrapperStruct0_var_1_10_Pointer)) == ((double) (*(WrapperStruct0_var_1_11_Pointer)))) [L104] EXPR ((((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(WrapperStruct0_var_1_10_Pointer)) == ((double) (*(WrapperStruct0_var_1_11_Pointer))))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) last_1_WrapperStruct0_var_1_12))) [L104] EXPR (((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) last_1_WrapperStruct0_var_1_12)) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR (((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) last_1_WrapperStruct0_var_1_12)) [L104] EXPR ((((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(WrapperStruct0_var_1_10_Pointer)) == ((double) (*(WrapperStruct0_var_1_11_Pointer))))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) last_1_WrapperStruct0_var_1_12))) [L104] EXPR (((((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(WrapperStruct0_var_1_10_Pointer)) == ((double) (*(WrapperStruct0_var_1_11_Pointer))))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && ((*(WrapperStruct0_var_1_14_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_12_Pointer)))) [L104-L105] return (((((((*(WrapperStruct0_var_1_12_Pointer)) <= 16) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : (((((((*(WrapperStruct0_var_1_10_Pointer))) > ((*(WrapperStruct0_var_1_10_Pointer)))) ? ((*(WrapperStruct0_var_1_10_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer))))) < (*(WrapperStruct0_var_1_10_Pointer))) ? ((*(WrapperStruct0_var_1_7_Pointer)) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer))))) : ((*(WrapperStruct0_var_1_1_Pointer)) == ((unsigned char) (*(WrapperStruct0_var_1_3_Pointer)))))) && (((10 << (*(WrapperStruct0_var_1_12_Pointer))) < ((*(WrapperStruct0_var_1_3_Pointer)) * (*(WrapperStruct0_var_1_14_Pointer)))) ? ((*(WrapperStruct0_var_1_8_Pointer)) == ((signed short int) ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_14_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(WrapperStruct0_var_1_10_Pointer)) == ((double) (*(WrapperStruct0_var_1_11_Pointer))))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) (((((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? ((((*(WrapperStruct0_var_1_3_Pointer)) + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && ((*(WrapperStruct0_var_1_14_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_12_Pointer)))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L19] reach_error() VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:6}, WrapperStruct0_var_1_11_Pointer={4:14}, WrapperStruct0_var_1_12_Pointer={4:22}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_3_Pointer={4:1}, WrapperStruct0_var_1_7_Pointer={4:2}, WrapperStruct0_var_1_8_Pointer={4:3}, WrapperStruct0_var_1_9_Pointer={4:5}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 5, 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=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 16:03:04,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 671a45704fa186ff8f8ae16fa1f231720ab75623ea1dd3c585bf6353937ced8a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:03:06,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:03:06,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:03:06,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:03:06,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:03:06,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:03:06,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:03:06,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:03:07,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:03:07,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:03:07,001 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:03:07,001 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:03:07,002 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:03:07,002 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:03:07,003 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:03:07,003 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:03:07,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:03:07,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:03:07,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:03:07,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:03:07,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:03:07,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:03:07,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:03:07,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:03:07,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:03:07,008 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:03:07,009 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:03:07,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:03:07,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:03:07,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:03:07,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:03:07,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:03:07,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:03:07,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:03:07,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:03:07,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:03:07,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:03:07,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:03:07,013 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:03:07,014 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:03:07,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:03:07,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:03:07,014 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:03:07,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:03:07,015 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 671a45704fa186ff8f8ae16fa1f231720ab75623ea1dd3c585bf6353937ced8a [2023-12-02 16:03:07,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:03:07,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:03:07,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:03:07,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:03:07,324 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:03:07,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i [2023-12-02 16:03:10,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:03:10,327 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:03:10,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i [2023-12-02 16:03:10,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data/e991176a1/b8e39ec9cf444c74a6bceeb7210ff837/FLAG7283c2be0 [2023-12-02 16:03:10,355 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/data/e991176a1/b8e39ec9cf444c74a6bceeb7210ff837 [2023-12-02 16:03:10,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:03:10,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:03:10,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:03:10,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:03:10,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:03:10,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe76138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10, skipping insertion in model container [2023-12-02 16:03:10,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,401 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:03:10,533 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i[916,929] [2023-12-02 16:03:10,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:03:10,602 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:03:10,613 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-9.i[916,929] [2023-12-02 16:03:10,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:03:10,663 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:03:10,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10 WrapperNode [2023-12-02 16:03:10,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:03:10,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:03:10,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:03:10,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:03:10,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,720 INFO L138 Inliner]: procedures = 36, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 295 [2023-12-02 16:03:10,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:03:10,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:03:10,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:03:10,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:03:10,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:03:10,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:03:10,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:03:10,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:03:10,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (1/1) ... [2023-12-02 16:03:10,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:03:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:03:10,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:03:10,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:03:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:03:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 16:03:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 16:03:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 16:03:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 16:03:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:03:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 16:03:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-12-02 16:03:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 16:03:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 16:03:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:03:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:03:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:03:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:03:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 16:03:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 16:03:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 16:03:10,961 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:03:10,963 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:03:11,554 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:03:11,617 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:03:11,617 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:03:11,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:03:11 BoogieIcfgContainer [2023-12-02 16:03:11,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:03:11,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:03:11,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:03:11,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:03:11,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:03:10" (1/3) ... [2023-12-02 16:03:11,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f73b642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:03:11, skipping insertion in model container [2023-12-02 16:03:11,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:03:10" (2/3) ... [2023-12-02 16:03:11,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f73b642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:03:11, skipping insertion in model container [2023-12-02 16:03:11,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:03:11" (3/3) ... [2023-12-02 16:03:11,627 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-9.i [2023-12-02 16:03:11,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:03:11,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:03:11,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:03:11,708 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e277607, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:03:11,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:03:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:03:11,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:11,725 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:11,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:11,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash -408122705, now seen corresponding path program 1 times [2023-12-02 16:03:11,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:11,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525013968] [2023-12-02 16:03:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:11,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:11,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:11,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:03:11,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 16:03:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:12,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:03:12,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 16:03:12,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:12,046 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:12,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525013968] [2023-12-02 16:03:12,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525013968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:12,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:03:12,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:03:12,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871069335] [2023-12-02 16:03:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:12,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:03:12,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:03:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:03:12,079 INFO L87 Difference]: Start difference. First operand has 63 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:03:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:12,121 INFO L93 Difference]: Finished difference Result 123 states and 187 transitions. [2023-12-02 16:03:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:03:12,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-12-02 16:03:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:12,129 INFO L225 Difference]: With dead ends: 123 [2023-12-02 16:03:12,129 INFO L226 Difference]: Without dead ends: 61 [2023-12-02 16:03:12,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:03:12,135 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:12,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:03:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-02 16:03:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-12-02 16:03:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:12,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 87 transitions. [2023-12-02 16:03:12,172 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 87 transitions. Word has length 55 [2023-12-02 16:03:12,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:12,173 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 87 transitions. [2023-12-02 16:03:12,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:03:12,174 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 87 transitions. [2023-12-02 16:03:12,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:03:12,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:12,177 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:12,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:03:12,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:12,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:12,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:12,379 INFO L85 PathProgramCache]: Analyzing trace with hash 699977589, now seen corresponding path program 1 times [2023-12-02 16:03:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:12,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596717228] [2023-12-02 16:03:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:12,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:12,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:03:12,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 16:03:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:12,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:03:12,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:03:12,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:12,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:12,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596717228] [2023-12-02 16:03:12,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596717228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:12,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:03:12,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:03:12,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163674410] [2023-12-02 16:03:12,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:12,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:03:12,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:12,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:03:12,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:03:12,697 INFO L87 Difference]: Start difference. First operand 61 states and 87 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:12,772 INFO L93 Difference]: Finished difference Result 145 states and 208 transitions. [2023-12-02 16:03:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:03:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-12-02 16:03:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:12,774 INFO L225 Difference]: With dead ends: 145 [2023-12-02 16:03:12,775 INFO L226 Difference]: Without dead ends: 85 [2023-12-02 16:03:12,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:03:12,777 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 48 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:12,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 249 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:03:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-02 16:03:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 63. [2023-12-02 16:03:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 56 states have internal predecessors, (79), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 89 transitions. [2023-12-02 16:03:12,788 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 89 transitions. Word has length 55 [2023-12-02 16:03:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:12,790 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 89 transitions. [2023-12-02 16:03:12,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 89 transitions. [2023-12-02 16:03:12,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:03:12,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:12,793 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:12,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 16:03:12,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:12,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:12,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:12,996 INFO L85 PathProgramCache]: Analyzing trace with hash 306950579, now seen corresponding path program 1 times [2023-12-02 16:03:12,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:12,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839819048] [2023-12-02 16:03:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:12,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:12,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:12,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:03:12,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 16:03:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:13,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:03:13,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:03:13,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:13,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:13,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839819048] [2023-12-02 16:03:13,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839819048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:13,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:03:13,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:03:13,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709086576] [2023-12-02 16:03:13,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:13,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:03:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:13,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:03:13,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:03:13,231 INFO L87 Difference]: Start difference. First operand 63 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:13,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:13,322 INFO L93 Difference]: Finished difference Result 156 states and 222 transitions. [2023-12-02 16:03:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:03:13,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-12-02 16:03:13,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:13,325 INFO L225 Difference]: With dead ends: 156 [2023-12-02 16:03:13,325 INFO L226 Difference]: Without dead ends: 94 [2023-12-02 16:03:13,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:03:13,327 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 69 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:13,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 342 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:03:13,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-02 16:03:13,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 65. [2023-12-02 16:03:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2023-12-02 16:03:13,337 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 55 [2023-12-02 16:03:13,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:13,338 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2023-12-02 16:03:13,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2023-12-02 16:03:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:03:13,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:13,341 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:13,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 16:03:13,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:13,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:13,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:13,546 INFO L85 PathProgramCache]: Analyzing trace with hash -502396047, now seen corresponding path program 1 times [2023-12-02 16:03:13,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:13,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944213169] [2023-12-02 16:03:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:13,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:13,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:13,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:03:13,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 16:03:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:13,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:03:13,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:03:13,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:03:13,774 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:13,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944213169] [2023-12-02 16:03:13,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944213169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:03:13,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:03:13,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 16:03:13,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800729544] [2023-12-02 16:03:13,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:13,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:03:13,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:13,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:03:13,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:03:13,777 INFO L87 Difference]: Start difference. First operand 65 states and 91 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:13,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:13,969 INFO L93 Difference]: Finished difference Result 150 states and 209 transitions. [2023-12-02 16:03:13,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 16:03:13,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-12-02 16:03:13,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:13,971 INFO L225 Difference]: With dead ends: 150 [2023-12-02 16:03:13,971 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 16:03:13,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-12-02 16:03:13,973 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 34 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:13,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 446 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:03:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 16:03:13,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2023-12-02 16:03:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:13,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2023-12-02 16:03:13,982 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 55 [2023-12-02 16:03:13,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:13,982 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2023-12-02 16:03:13,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2023-12-02 16:03:13,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:03:13,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:13,985 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:13,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-02 16:03:14,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:14,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:14,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:14,189 INFO L85 PathProgramCache]: Analyzing trace with hash -502336465, now seen corresponding path program 1 times [2023-12-02 16:03:14,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:14,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480467332] [2023-12-02 16:03:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:14,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:14,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:14,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:03:14,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 16:03:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:14,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:03:14,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:14,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:03:15,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:03:17,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-12-02 16:03:20,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 16:03:20,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:03:20,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:03:20,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 50 [2023-12-02 16:03:20,625 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 0 case distinctions, treesize of input 58 treesize of output 72 [2023-12-02 16:03:20,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:03:20,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 50 [2023-12-02 16:03:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 16:03:20,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:03:20,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:20,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480467332] [2023-12-02 16:03:20,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480467332] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:20,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:03:20,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-02 16:03:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138573987] [2023-12-02 16:03:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:03:20,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:03:20,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:03:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:03:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2023-12-02 16:03:20,975 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:03:21,458 INFO L93 Difference]: Finished difference Result 161 states and 221 transitions. [2023-12-02 16:03:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:03:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-12-02 16:03:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:03:21,459 INFO L225 Difference]: With dead ends: 161 [2023-12-02 16:03:21,460 INFO L226 Difference]: Without dead ends: 93 [2023-12-02 16:03:21,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=47, Invalid=224, Unknown=1, NotChecked=0, Total=272 [2023-12-02 16:03:21,461 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:03:21,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 207 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:03:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-02 16:03:21,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 71. [2023-12-02 16:03:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.359375) internal successors, (87), 64 states have internal predecessors, (87), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 16:03:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 97 transitions. [2023-12-02 16:03:21,469 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 97 transitions. Word has length 55 [2023-12-02 16:03:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:03:21,470 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 97 transitions. [2023-12-02 16:03:21,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:03:21,470 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 97 transitions. [2023-12-02 16:03:21,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 16:03:21,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:03:21,471 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:03:21,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 16:03:21,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:21,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:03:21,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:03:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2128229816, now seen corresponding path program 1 times [2023-12-02 16:03:21,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:03:21,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202008637] [2023-12-02 16:03:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:21,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:03:21,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:03:21,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:03:21,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 16:03:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:21,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:03:21,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:24,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 16:03:25,834 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 101 treesize of output 63 [2023-12-02 16:03:26,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2023-12-02 16:03:26,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2023-12-02 16:03:26,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 111 [2023-12-02 16:03:26,553 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 0 case distinctions, treesize of input 181 treesize of output 120 [2023-12-02 16:03:27,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:03:27,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 323 treesize of output 139 [2023-12-02 16:03:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:03:27,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:03:49,931 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:03:49,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202008637] [2023-12-02 16:03:49,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202008637] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:03:49,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1650113546] [2023-12-02 16:03:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:03:49,932 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:03:49,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:03:49,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:03:49,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 16:03:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:03:51,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 16:03:51,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:03:54,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 16:03:57,621 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 101 treesize of output 63 [2023-12-02 16:03:58,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2023-12-02 16:03:58,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2023-12-02 16:03:58,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 111 [2023-12-02 16:03:59,162 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 0 case distinctions, treesize of input 181 treesize of output 120 [2023-12-02 16:04:00,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 323 treesize of output 139 [2023-12-02 16:04:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:04:00,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:04:10,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1650113546] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:04:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509673399] [2023-12-02 16:04:10,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:04:10,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:04:10,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:04:10,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:04:10,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:04:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:04:12,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:04:12,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:04:14,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 16:04:33,892 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 117 treesize of output 71 [2023-12-02 16:04:38,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:04:47,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:04:59,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 79 [2023-12-02 16:04:59,921 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 0 case distinctions, treesize of input 181 treesize of output 120 [2023-12-02 16:05:00,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:00,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 323 treesize of output 139 [2023-12-02 16:05:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:05:00,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:05:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509673399] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:05:11,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:05:11,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2023-12-02 16:05:11,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493235964] [2023-12-02 16:05:11,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:05:11,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-02 16:05:11,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-02 16:05:11,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1133, Unknown=26, NotChecked=0, Total=1332 [2023-12-02 16:05:11,070 INFO L87 Difference]: Start difference. First operand 71 states and 97 transitions. Second operand has 31 states, 31 states have (on average 2.6129032258064515) internal successors, (81), 30 states have internal predecessors, (81), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-02 16:05:23,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:05:24,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:05:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:30,037 INFO L93 Difference]: Finished difference Result 217 states and 294 transitions. [2023-12-02 16:05:30,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 16:05:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.6129032258064515) internal successors, (81), 30 states have internal predecessors, (81), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 57 [2023-12-02 16:05:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:30,042 INFO L225 Difference]: With dead ends: 217 [2023-12-02 16:05:30,042 INFO L226 Difference]: Without dead ends: 147 [2023-12-02 16:05:30,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 196 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 88.8s TimeCoverageRelationStatistics Valid=358, Invalid=1778, Unknown=26, NotChecked=0, Total=2162 [2023-12-02 16:05:30,045 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 706 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:30,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 531 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2023-12-02 16:05:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-02 16:05:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 139. [2023-12-02 16:05:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 125 states have (on average 1.344) internal successors, (168), 126 states have internal predecessors, (168), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:05:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 188 transitions. [2023-12-02 16:05:30,065 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 188 transitions. Word has length 57 [2023-12-02 16:05:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:30,066 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 188 transitions. [2023-12-02 16:05:30,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.6129032258064515) internal successors, (81), 30 states have internal predecessors, (81), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-02 16:05:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 188 transitions. [2023-12-02 16:05:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 16:05:30,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:30,067 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:05:30,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-02 16:05:30,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 16:05:30,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 16:05:30,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:05:30,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:30,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:30,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1318883190, now seen corresponding path program 1 times [2023-12-02 16:05:30,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:30,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000621613] [2023-12-02 16:05:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:30,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:05:30,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:30,671 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:05:30,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 16:05:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:30,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 16:05:30,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:31,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2023-12-02 16:05:31,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:31,797 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 [2023-12-02 16:05:31,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:31,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2023-12-02 16:05:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:05:31,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:05:31,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000621613] [2023-12-02 16:05:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000621613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:05:31,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:05:31,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:05:31,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801992802] [2023-12-02 16:05:31,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:05:31,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:05:31,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:31,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:05:31,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:05:31,963 INFO L87 Difference]: Start difference. First operand 139 states and 188 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:05:32,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:32,803 INFO L93 Difference]: Finished difference Result 282 states and 380 transitions. [2023-12-02 16:05:32,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:05:32,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-12-02 16:05:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:32,808 INFO L225 Difference]: With dead ends: 282 [2023-12-02 16:05:32,809 INFO L226 Difference]: Without dead ends: 144 [2023-12-02 16:05:32,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:05:32,811 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 125 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:32,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 180 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 16:05:32,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-02 16:05:32,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 139. [2023-12-02 16:05:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 125 states have (on average 1.328) internal successors, (166), 126 states have internal predecessors, (166), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:05:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 186 transitions. [2023-12-02 16:05:32,838 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 186 transitions. Word has length 57 [2023-12-02 16:05:32,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:32,838 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 186 transitions. [2023-12-02 16:05:32,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:05:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 186 transitions. [2023-12-02 16:05:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 16:05:32,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:32,840 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:05:32,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-02 16:05:33,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:05:33,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:33,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash 925856180, now seen corresponding path program 1 times [2023-12-02 16:05:33,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661527082] [2023-12-02 16:05:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:33,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:05:33,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:33,043 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:05:33,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 16:05:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:33,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:05:33,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:33,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 16:05:36,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-02 16:05:36,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 16:05:36,676 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 48 treesize of output 42 [2023-12-02 16:05:36,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 56 [2023-12-02 16:05:37,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 59 [2023-12-02 16:05:37,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:37,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 63 [2023-12-02 16:05:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:05:37,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:05:37,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:05:37,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661527082] [2023-12-02 16:05:37,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661527082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:05:37,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:05:37,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 16:05:37,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226865446] [2023-12-02 16:05:37,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:05:37,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:05:37,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:05:37,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:05:37,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:05:37,571 INFO L87 Difference]: Start difference. First operand 139 states and 186 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:05:44,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:05:44,816 INFO L93 Difference]: Finished difference Result 779 states and 1038 transitions. [2023-12-02 16:05:44,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 16:05:44,817 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-12-02 16:05:44,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:05:44,821 INFO L225 Difference]: With dead ends: 779 [2023-12-02 16:05:44,822 INFO L226 Difference]: Without dead ends: 641 [2023-12-02 16:05:44,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2023-12-02 16:05:44,823 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 617 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:05:44,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 674 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-02 16:05:44,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-12-02 16:05:44,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 415. [2023-12-02 16:05:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 375 states have (on average 1.312) internal successors, (492), 378 states have internal predecessors, (492), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:05:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 552 transitions. [2023-12-02 16:05:44,898 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 552 transitions. Word has length 57 [2023-12-02 16:05:44,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:05:44,898 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 552 transitions. [2023-12-02 16:05:44,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:05:44,899 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 552 transitions. [2023-12-02 16:05:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 16:05:44,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:05:44,900 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:05:44,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 16:05:45,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:05:45,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:05:45,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:05:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash 108207730, now seen corresponding path program 1 times [2023-12-02 16:05:45,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:05:45,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375591079] [2023-12-02 16:05:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:05:45,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:05:45,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:05:45,103 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:05:45,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 16:05:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:05:45,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:05:45,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:05:45,658 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 13 [2023-12-02 16:05:45,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 16:05:46,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:05:47,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2023-12-02 16:05:50,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-12-02 16:05:52,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2023-12-02 16:05:53,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 80 [2023-12-02 16:05:53,921 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 0 case distinctions, treesize of input 94 treesize of output 100 [2023-12-02 16:05:54,367 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:05:54,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 62 [2023-12-02 16:05:54,477 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:05:54,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:06:14,091 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:06:14,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375591079] [2023-12-02 16:06:14,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375591079] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:06:14,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1989205679] [2023-12-02 16:06:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:06:14,091 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:06:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:06:14,092 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:06:14,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 16:06:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:06:15,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 16:06:15,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:06:17,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 16:06:22,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-02 16:06:24,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 16:06:33,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2023-12-02 16:06:38,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 78 [2023-12-02 16:06:41,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 54 [2023-12-02 16:06:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:06:41,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:06:41,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1989205679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:06:41,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:06:41,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-12-02 16:06:41,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415444404] [2023-12-02 16:06:41,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:06:41,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 16:06:41,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:06:41,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 16:06:41,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=489, Unknown=16, NotChecked=0, Total=600 [2023-12-02 16:06:41,735 INFO L87 Difference]: Start difference. First operand 415 states and 552 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:24,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:07:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:24,692 INFO L93 Difference]: Finished difference Result 1022 states and 1356 transitions. [2023-12-02 16:07:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:07:24,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-12-02 16:07:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:24,697 INFO L225 Difference]: With dead ends: 1022 [2023-12-02 16:07:24,697 INFO L226 Difference]: Without dead ends: 608 [2023-12-02 16:07:24,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 83.9s TimeCoverageRelationStatistics Valid=170, Invalid=666, Unknown=34, NotChecked=0, Total=870 [2023-12-02 16:07:24,698 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 256 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:24,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 366 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 16:07:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-02 16:07:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 409. [2023-12-02 16:07:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 369 states have (on average 1.3062330623306233) internal successors, (482), 372 states have internal predecessors, (482), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:07:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 542 transitions. [2023-12-02 16:07:24,760 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 542 transitions. Word has length 57 [2023-12-02 16:07:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:24,760 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 542 transitions. [2023-12-02 16:07:24,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 542 transitions. [2023-12-02 16:07:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 16:07:24,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:24,767 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:24,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 16:07:24,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-02 16:07:25,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:25,169 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:25,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1465137606, now seen corresponding path program 1 times [2023-12-02 16:07:25,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:07:25,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798872806] [2023-12-02 16:07:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:25,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:25,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:07:25,171 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:07:25,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 16:07:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:25,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:07:25,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:07:25,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:25,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:07:25,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798872806] [2023-12-02 16:07:25,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798872806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:25,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:25,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:07:25,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733192641] [2023-12-02 16:07:25,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:25,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:07:25,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:25,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:07:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:07:25,352 INFO L87 Difference]: Start difference. First operand 409 states and 542 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:07:25,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:25,508 INFO L93 Difference]: Finished difference Result 829 states and 1101 transitions. [2023-12-02 16:07:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:07:25,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2023-12-02 16:07:25,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:25,511 INFO L225 Difference]: With dead ends: 829 [2023-12-02 16:07:25,511 INFO L226 Difference]: Without dead ends: 421 [2023-12-02 16:07:25,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:07:25,513 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 7 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:25,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 247 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:07:25,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-12-02 16:07:25,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 409. [2023-12-02 16:07:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 369 states have (on average 1.2981029810298104) internal successors, (479), 372 states have internal predecessors, (479), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:07:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 539 transitions. [2023-12-02 16:07:25,568 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 539 transitions. Word has length 57 [2023-12-02 16:07:25,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:25,569 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 539 transitions. [2023-12-02 16:07:25,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:07:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 539 transitions. [2023-12-02 16:07:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:07:25,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:25,570 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:25,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 16:07:25,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:25,771 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:25,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:25,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1676563272, now seen corresponding path program 1 times [2023-12-02 16:07:25,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:07:25,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661776502] [2023-12-02 16:07:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:25,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:25,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:07:25,773 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:07:25,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 16:07:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:26,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:07:26,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:26,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 16:07:29,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-02 16:07:29,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 16:07:29,442 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 49 treesize of output 39 [2023-12-02 16:07:29,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 50 [2023-12-02 16:07:29,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:07:30,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:07:30,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 48 [2023-12-02 16:07:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:07:31,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:31,041 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:07:31,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661776502] [2023-12-02 16:07:31,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661776502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:31,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:31,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-02 16:07:31,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360363989] [2023-12-02 16:07:31,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:31,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 16:07:31,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:31,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 16:07:31,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:07:31,043 INFO L87 Difference]: Start difference. First operand 409 states and 539 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:35,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:07:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:40,911 INFO L93 Difference]: Finished difference Result 577 states and 755 transitions. [2023-12-02 16:07:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 16:07:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-12-02 16:07:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:40,917 INFO L225 Difference]: With dead ends: 577 [2023-12-02 16:07:40,917 INFO L226 Difference]: Without dead ends: 575 [2023-12-02 16:07:40,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2023-12-02 16:07:40,918 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 627 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 109 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:40,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 503 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 797 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-12-02 16:07:40,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-02 16:07:40,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 417. [2023-12-02 16:07:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 377 states have (on average 1.2917771883289124) internal successors, (487), 380 states have internal predecessors, (487), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:07:40,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 547 transitions. [2023-12-02 16:07:40,994 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 547 transitions. Word has length 59 [2023-12-02 16:07:40,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:40,995 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 547 transitions. [2023-12-02 16:07:40,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 547 transitions. [2023-12-02 16:07:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:07:40,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:40,996 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:41,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 16:07:41,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:41,204 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:41,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1676622854, now seen corresponding path program 1 times [2023-12-02 16:07:41,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:07:41,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068320337] [2023-12-02 16:07:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:41,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:41,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:07:41,206 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:07:41,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-02 16:07:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:41,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 16:07:41,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:41,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 16:07:44,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:07:44,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2023-12-02 16:07:44,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2023-12-02 16:07:45,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2023-12-02 16:07:45,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 64 [2023-12-02 16:07:46,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:07:46,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 61 [2023-12-02 16:07:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:07:46,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:46,851 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:07:46,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068320337] [2023-12-02 16:07:46,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068320337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:46,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:46,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-02 16:07:46,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839760710] [2023-12-02 16:07:46,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:46,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 16:07:46,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:46,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 16:07:46,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-02 16:07:46,853 INFO L87 Difference]: Start difference. First operand 417 states and 547 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:55,564 INFO L93 Difference]: Finished difference Result 1003 states and 1312 transitions. [2023-12-02 16:07:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 16:07:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-12-02 16:07:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:55,569 INFO L225 Difference]: With dead ends: 1003 [2023-12-02 16:07:55,569 INFO L226 Difference]: Without dead ends: 587 [2023-12-02 16:07:55,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=278, Invalid=714, Unknown=0, NotChecked=0, Total=992 [2023-12-02 16:07:55,571 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 761 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:55,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 480 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-02 16:07:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-12-02 16:07:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 429. [2023-12-02 16:07:55,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 389 states have (on average 1.2827763496143958) internal successors, (499), 392 states have internal predecessors, (499), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:07:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 559 transitions. [2023-12-02 16:07:55,634 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 559 transitions. Word has length 59 [2023-12-02 16:07:55,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:55,634 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 559 transitions. [2023-12-02 16:07:55,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 559 transitions. [2023-12-02 16:07:55,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:07:55,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:55,636 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:55,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-02 16:07:55,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:55,837 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:55,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1806223641, now seen corresponding path program 1 times [2023-12-02 16:07:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:07:55,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153305941] [2023-12-02 16:07:55,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:55,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:55,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:07:55,839 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:07:55,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 16:07:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:56,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:07:56,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:56,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:07:56,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 31 [2023-12-02 16:07:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:07:56,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:56,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:07:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153305941] [2023-12-02 16:07:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153305941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:56,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:56,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:07:56,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324148464] [2023-12-02 16:07:56,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:56,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:07:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:56,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:07:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:07:56,082 INFO L87 Difference]: Start difference. First operand 429 states and 559 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:56,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:56,217 INFO L93 Difference]: Finished difference Result 985 states and 1272 transitions. [2023-12-02 16:07:56,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:07:56,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-12-02 16:07:56,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:56,221 INFO L225 Difference]: With dead ends: 985 [2023-12-02 16:07:56,221 INFO L226 Difference]: Without dead ends: 557 [2023-12-02 16:07:56,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:07:56,223 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 32 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:56,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 171 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:07:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-12-02 16:07:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 429. [2023-12-02 16:07:56,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 389 states have (on average 1.2673521850899743) internal successors, (493), 392 states have internal predecessors, (493), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:07:56,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 553 transitions. [2023-12-02 16:07:56,280 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 553 transitions. Word has length 59 [2023-12-02 16:07:56,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:56,280 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 553 transitions. [2023-12-02 16:07:56,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:56,281 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 553 transitions. [2023-12-02 16:07:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:07:56,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:56,282 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:56,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-02 16:07:56,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:56,482 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:56,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash 900395753, now seen corresponding path program 1 times [2023-12-02 16:07:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:07:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72541063] [2023-12-02 16:07:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:56,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:07:56,484 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:07:56,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-02 16:07:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:56,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 16:07:56,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:57,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:07:57,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-12-02 16:07:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:07:57,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:57,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:07:57,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72541063] [2023-12-02 16:07:57,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72541063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:57,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:57,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:07:57,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683696571] [2023-12-02 16:07:57,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:57,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:07:57,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:57,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:07:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:07:57,334 INFO L87 Difference]: Start difference. First operand 429 states and 553 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:07:58,733 INFO L93 Difference]: Finished difference Result 1161 states and 1474 transitions. [2023-12-02 16:07:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:07:58,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-12-02 16:07:58,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:07:58,737 INFO L225 Difference]: With dead ends: 1161 [2023-12-02 16:07:58,737 INFO L226 Difference]: Without dead ends: 733 [2023-12-02 16:07:58,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:07:58,738 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 186 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:07:58,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 188 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 16:07:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-02 16:07:58,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 441. [2023-12-02 16:07:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 401 states have (on average 1.259351620947631) internal successors, (505), 404 states have internal predecessors, (505), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 16:07:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 565 transitions. [2023-12-02 16:07:58,824 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 565 transitions. Word has length 59 [2023-12-02 16:07:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:07:58,824 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 565 transitions. [2023-12-02 16:07:58,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:07:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 565 transitions. [2023-12-02 16:07:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:07:58,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:07:58,826 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:07:58,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-02 16:07:59,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:59,027 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:07:59,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:07:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 527699193, now seen corresponding path program 1 times [2023-12-02 16:07:59,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:07:59,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824258010] [2023-12-02 16:07:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:07:59,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:07:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:07:59,029 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:07:59,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-02 16:07:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:07:59,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:07:59,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:07:59,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:07:59,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2023-12-02 16:07:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:07:59,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:07:59,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:07:59,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824258010] [2023-12-02 16:07:59,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824258010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:07:59,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:07:59,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:07:59,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194740080] [2023-12-02 16:07:59,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:07:59,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:07:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:07:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:07:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:07:59,535 INFO L87 Difference]: Start difference. First operand 441 states and 565 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:08:00,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:08:00,280 INFO L93 Difference]: Finished difference Result 1101 states and 1403 transitions. [2023-12-02 16:08:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:08:00,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-12-02 16:08:00,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:08:00,284 INFO L225 Difference]: With dead ends: 1101 [2023-12-02 16:08:00,284 INFO L226 Difference]: Without dead ends: 661 [2023-12-02 16:08:00,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:08:00,285 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 69 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:08:00,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 245 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:08:00,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-02 16:08:00,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 591. [2023-12-02 16:08:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 543 states have (on average 1.267034990791897) internal successors, (688), 546 states have internal predecessors, (688), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 16:08:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 760 transitions. [2023-12-02 16:08:00,390 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 760 transitions. Word has length 59 [2023-12-02 16:08:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:08:00,390 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 760 transitions. [2023-12-02 16:08:00,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:08:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 760 transitions. [2023-12-02 16:08:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:08:00,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:08:00,392 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:08:00,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-02 16:08:00,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:08:00,592 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:08:00,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:08:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash -564612484, now seen corresponding path program 1 times [2023-12-02 16:08:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:08:00,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797479728] [2023-12-02 16:08:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:08:00,593 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 [2023-12-02 16:08:00,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:08:00,594 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:08:00,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-02 16:08:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:08:00,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:08:00,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:08:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 16:08:00,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:08:00,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:08:00,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797479728] [2023-12-02 16:08:00,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797479728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:08:00,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:08:00,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 16:08:00,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228430448] [2023-12-02 16:08:00,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:08:00,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:08:00,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:08:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:08:00,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:08:00,835 INFO L87 Difference]: Start difference. First operand 591 states and 760 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:08:01,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:08:01,145 INFO L93 Difference]: Finished difference Result 1115 states and 1432 transitions. [2023-12-02 16:08:01,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:08:01,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-12-02 16:08:01,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:08:01,148 INFO L225 Difference]: With dead ends: 1115 [2023-12-02 16:08:01,148 INFO L226 Difference]: Without dead ends: 605 [2023-12-02 16:08:01,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:08:01,150 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 7 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:08:01,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 353 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:08:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-12-02 16:08:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 591. [2023-12-02 16:08:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 543 states have (on average 1.2596685082872927) internal successors, (684), 546 states have internal predecessors, (684), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 16:08:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 756 transitions. [2023-12-02 16:08:01,236 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 756 transitions. Word has length 59 [2023-12-02 16:08:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:08:01,236 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 756 transitions. [2023-12-02 16:08:01,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-02 16:08:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 756 transitions. [2023-12-02 16:08:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 16:08:01,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:08:01,237 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:08:01,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-02 16:08:01,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:08:01,438 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:08:01,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:08:01,439 INFO L85 PathProgramCache]: Analyzing trace with hash -587244738, now seen corresponding path program 1 times [2023-12-02 16:08:01,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:08:01,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357283526] [2023-12-02 16:08:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:08:01,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:08:01,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:08:01,440 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:08:01,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 16:08:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:08:01,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:08:01,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:08:05,074 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 8 treesize of output 1 [2023-12-02 16:08:08,052 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 99 treesize of output 61 [2023-12-02 16:08:08,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2023-12-02 16:08:08,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2023-12-02 16:08:08,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 109 [2023-12-02 16:08:09,230 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 0 case distinctions, treesize of input 179 treesize of output 118 [2023-12-02 16:08:10,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:08:10,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 321 treesize of output 137 [2023-12-02 16:08:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:08:10,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:08:42,484 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:08:42,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357283526] [2023-12-02 16:08:42,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357283526] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:08:42,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1833841609] [2023-12-02 16:08:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:08:42,485 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:08:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:08:42,486 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:08:42,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 16:08:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:08:44,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-02 16:08:44,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:08:48,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 16:08:56,756 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 115 treesize of output 69 [2023-12-02 16:08:57,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 78 [2023-12-02 16:08:57,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 78 [2023-12-02 16:08:58,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 79 [2023-12-02 16:08:59,154 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 0 case distinctions, treesize of input 100 treesize of output 91 [2023-12-02 16:09:01,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 242 treesize of output 110 [2023-12-02 16:09:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:09:01,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:09:14,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1833841609] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:09:14,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562816348] [2023-12-02 16:09:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:09:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:09:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:09:14,175 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:09:14,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 16:09:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:09:14,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-02 16:09:14,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:09:18,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 16:09:31,895 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 115 treesize of output 69 [2023-12-02 16:09:34,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:09:39,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:09:45,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 79 [2023-12-02 16:09:46,572 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 0 case distinctions, treesize of input 179 treesize of output 118 [2023-12-02 16:09:47,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:09:47,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 321 treesize of output 137 [2023-12-02 16:09:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 16:09:47,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:09:57,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562816348] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:09:57,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:09:57,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 19] total 44 [2023-12-02 16:09:57,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005725306] [2023-12-02 16:09:57,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:09:57,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-02 16:09:57,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:09:57,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-02 16:09:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2306, Unknown=15, NotChecked=0, Total=2652 [2023-12-02 16:09:57,522 INFO L87 Difference]: Start difference. First operand 591 states and 756 transitions. Second operand has 45 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 41 states have internal predecessors, (87), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-02 16:10:58,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:10:58,804 INFO L93 Difference]: Finished difference Result 1101 states and 1382 transitions. [2023-12-02 16:10:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-02 16:10:58,807 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 41 states have internal predecessors, (87), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 59 [2023-12-02 16:10:58,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:10:58,810 INFO L225 Difference]: With dead ends: 1101 [2023-12-02 16:10:58,810 INFO L226 Difference]: Without dead ends: 661 [2023-12-02 16:10:58,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 187 SyntacticMatches, 9 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2521 ImplicationChecksByTransitivity, 124.9s TimeCoverageRelationStatistics Valid=1144, Invalid=5974, Unknown=22, NotChecked=0, Total=7140 [2023-12-02 16:10:58,813 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 510 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:10:58,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1019 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 21.9s Time] [2023-12-02 16:10:58,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-02 16:10:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 327. [2023-12-02 16:10:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 298 states have (on average 1.2416107382550337) internal successors, (370), 298 states have internal predecessors, (370), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:10:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 410 transitions. [2023-12-02 16:10:58,880 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 410 transitions. Word has length 59 [2023-12-02 16:10:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:10:58,881 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 410 transitions. [2023-12-02 16:10:58,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 41 states have internal predecessors, (87), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-02 16:10:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 410 transitions. [2023-12-02 16:10:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 16:10:58,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:10:58,882 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:10:58,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-02 16:10:59,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 16:10:59,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-02 16:10:59,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:10:59,483 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:10:59,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:10:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1841105974, now seen corresponding path program 1 times [2023-12-02 16:10:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:10:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662618721] [2023-12-02 16:10:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:10:59,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:10:59,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:10:59,485 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:10:59,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-02 16:10:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:10:59,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:10:59,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:10:59,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:10:59,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 31 [2023-12-02 16:10:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:10:59,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:10:59,784 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:10:59,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662618721] [2023-12-02 16:10:59,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662618721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:10:59,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:10:59,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:10:59,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403383558] [2023-12-02 16:10:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:10:59,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:10:59,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:10:59,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:10:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:10:59,786 INFO L87 Difference]: Start difference. First operand 327 states and 410 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:10:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:10:59,932 INFO L93 Difference]: Finished difference Result 614 states and 770 transitions. [2023-12-02 16:10:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:10:59,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2023-12-02 16:10:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:10:59,934 INFO L225 Difference]: With dead ends: 614 [2023-12-02 16:10:59,934 INFO L226 Difference]: Without dead ends: 327 [2023-12-02 16:10:59,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:10:59,935 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:10:59,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 153 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:10:59,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-12-02 16:10:59,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2023-12-02 16:10:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 298 states have (on average 1.2248322147651007) internal successors, (365), 298 states have internal predecessors, (365), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:10:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2023-12-02 16:10:59,984 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 62 [2023-12-02 16:10:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:10:59,984 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2023-12-02 16:10:59,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:10:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2023-12-02 16:10:59,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 16:10:59,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:10:59,985 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:10:59,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-02 16:11:00,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:11:00,185 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:00,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:00,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1622251256, now seen corresponding path program 1 times [2023-12-02 16:11:00,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:11:00,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482628377] [2023-12-02 16:11:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:00,186 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 [2023-12-02 16:11:00,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:11:00,187 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:11:00,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-02 16:11:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:00,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 16:11:00,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:00,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:11:02,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:11:03,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2023-12-02 16:11:06,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-12-02 16:11:07,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:11:07,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:11:07,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 69 [2023-12-02 16:11:07,737 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 0 case distinctions, treesize of input 74 treesize of output 94 [2023-12-02 16:11:08,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:11:08,234 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 110 treesize of output 58 [2023-12-02 16:11:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 16:11:08,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:11:08,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:11:08,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482628377] [2023-12-02 16:11:08,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482628377] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:11:08,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:11:08,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2023-12-02 16:11:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763574633] [2023-12-02 16:11:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:11:08,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 16:11:08,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:11:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 16:11:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=202, Unknown=1, NotChecked=0, Total=240 [2023-12-02 16:11:08,627 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:11:09,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:11:09,575 INFO L93 Difference]: Finished difference Result 741 states and 907 transitions. [2023-12-02 16:11:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:11:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2023-12-02 16:11:09,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:11:09,580 INFO L225 Difference]: With dead ends: 741 [2023-12-02 16:11:09,580 INFO L226 Difference]: Without dead ends: 502 [2023-12-02 16:11:09,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=74, Invalid=387, Unknown=1, NotChecked=0, Total=462 [2023-12-02 16:11:09,581 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 109 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:11:09,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 295 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:11:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-12-02 16:11:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 332. [2023-12-02 16:11:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 303 states have (on average 1.221122112211221) internal successors, (370), 303 states have internal predecessors, (370), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:11:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 410 transitions. [2023-12-02 16:11:09,648 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 410 transitions. Word has length 62 [2023-12-02 16:11:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:11:09,648 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 410 transitions. [2023-12-02 16:11:09,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:11:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 410 transitions. [2023-12-02 16:11:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 16:11:09,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:11:09,649 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:11:09,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-02 16:11:09,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:11:09,850 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:09,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1279980189, now seen corresponding path program 1 times [2023-12-02 16:11:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:11:09,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193385567] [2023-12-02 16:11:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:09,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:11:09,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:11:09,852 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:11:09,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-02 16:11:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:10,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:11:10,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:10,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:11:10,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 31 [2023-12-02 16:11:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-02 16:11:10,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:11:10,122 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:11:10,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193385567] [2023-12-02 16:11:10,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193385567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:11:10,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:11:10,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:11:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872231728] [2023-12-02 16:11:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:11:10,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:11:10,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:11:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:11:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:11:10,123 INFO L87 Difference]: Start difference. First operand 332 states and 410 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:11:11,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 16:11:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:11:11,845 INFO L93 Difference]: Finished difference Result 649 states and 792 transitions. [2023-12-02 16:11:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:11:11,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2023-12-02 16:11:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:11:11,849 INFO L225 Difference]: With dead ends: 649 [2023-12-02 16:11:11,849 INFO L226 Difference]: Without dead ends: 379 [2023-12-02 16:11:11,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:11:11,850 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 51 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:11:11,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 196 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 16:11:11,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-02 16:11:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 289. [2023-12-02 16:11:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 260 states have (on average 1.2) internal successors, (312), 260 states have internal predecessors, (312), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:11:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 352 transitions. [2023-12-02 16:11:11,902 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 352 transitions. Word has length 64 [2023-12-02 16:11:11,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:11:11,902 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 352 transitions. [2023-12-02 16:11:11,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-02 16:11:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 352 transitions. [2023-12-02 16:11:11,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 16:11:11,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:11:11,903 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:11:11,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-02 16:11:12,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:11:12,104 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:11:12,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:11:12,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1055874843, now seen corresponding path program 1 times [2023-12-02 16:11:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:11:12,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844777263] [2023-12-02 16:11:12,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:11:12,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:11:12,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:11:12,106 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:11:12,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-02 16:11:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:11:12,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 16:11:12,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:11:12,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-02 16:11:24,310 INFO L349 Elim1Store]: treesize reduction 9, result has 86.2 percent of original size [2023-12-02 16:11:24,311 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 88 treesize of output 95 [2023-12-02 16:11:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 115 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-02 16:11:27,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:11:33,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:11:33,886 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 86 treesize of output 206 [2023-12-02 16:12:16,560 WARN L293 SmtUtils]: Spent 9.90s on a formula simplification that was a NOOP. DAG size: 198 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:13:16,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:13:16,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844777263] [2023-12-02 16:13:16,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844777263] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:13:16,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1114021824] [2023-12-02 16:13:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:13:16,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:13:16,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:13:16,600 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:13:16,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 16:13:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:13:17,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 16:13:17,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:13:18,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:13:38,488 INFO L349 Elim1Store]: treesize reduction 9, result has 85.2 percent of original size [2023-12-02 16:13:38,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 91 [2023-12-02 16:13:40,956 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 115 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-02 16:13:40,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:13:42,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:13:42,450 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 86 treesize of output 206 [2023-12-02 16:14:33,654 WARN L293 SmtUtils]: Spent 10.72s on a formula simplification that was a NOOP. DAG size: 198 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:15:42,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1114021824] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:15:42,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846636918] [2023-12-02 16:15:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:15:42,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:15:42,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:15:42,562 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:15:42,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a69e11c-e3f3-490c-b284-ad8a5ab1eb18/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-02 16:15:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:15:42,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-02 16:15:42,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:15:43,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 16:16:32,752 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-12-02 16:16:32,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 59 [2023-12-02 16:16:51,576 INFO L349 Elim1Store]: treesize reduction 36, result has 39.0 percent of original size [2023-12-02 16:16:51,576 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 3 case distinctions, treesize of input 158 treesize of output 160 [2023-12-02 16:16:56,704 INFO L349 Elim1Store]: treesize reduction 72, result has 44.6 percent of original size [2023-12-02 16:16:56,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 244 treesize of output 257