./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.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_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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_53114605-88c6-4960-85eb-c565d831d9ea/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 c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:43:13,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:43:13,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:43:13,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:43:13,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:43:13,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:43:13,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:43:13,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:43:13,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:43:13,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:43:13,781 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:43:13,781 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:43:13,782 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:43:13,782 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:43:13,783 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:43:13,783 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:43:13,784 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:43:13,784 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:43:13,785 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:43:13,786 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:43:13,786 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:43:13,787 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:43:13,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:43:13,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:43:13,789 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:43:13,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:43:13,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:43:13,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:43:13,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:43:13,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:43:13,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:43:13,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:43:13,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:43:13,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:43:13,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:43:13,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:43:13,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:43:13,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:43:13,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:43:13,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:43:13,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:43:13,794 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:43:13,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:43:13,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:43:13,794 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:43:13,795 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:43:13,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:43:13,795 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_53114605-88c6-4960-85eb-c565d831d9ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf [2023-12-02 16:43:13,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:43:14,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:43:14,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:43:14,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:43:14,022 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:43:14,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-12-02 16:43:16,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:43:16,959 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:43:16,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-12-02 16:43:16,970 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data/eb461d52f/39cae07dfc124bf0bcdc22b6c55f6fb6/FLAGfc3a790d6 [2023-12-02 16:43:16,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data/eb461d52f/39cae07dfc124bf0bcdc22b6c55f6fb6 [2023-12-02 16:43:16,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:43:16,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:43:16,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:43:16,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:43:16,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:43:16,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:43:16" (1/1) ... [2023-12-02 16:43:16,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3481c997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:16, skipping insertion in model container [2023-12-02 16:43:16,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:43:16" (1/1) ... [2023-12-02 16:43:17,031 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:43:17,177 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_53114605-88c6-4960-85eb-c565d831d9ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-12-02 16:43:17,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:43:17,263 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:43:17,276 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_53114605-88c6-4960-85eb-c565d831d9ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-12-02 16:43:17,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:43:17,333 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:43:17,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17 WrapperNode [2023-12-02 16:43:17,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:43:17,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:43:17,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:43:17,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:43:17,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,398 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253 [2023-12-02 16:43:17,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:43:17,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:43:17,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:43:17,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:43:17,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:43:17,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:43:17,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:43:17,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:43:17,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (1/1) ... [2023-12-02 16:43:17,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:43:17,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:43:17,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:43:17,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:43:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:43:17,606 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:43:17,608 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:43:18,077 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:43:18,398 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:43:18,399 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:43:18,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:43:18 BoogieIcfgContainer [2023-12-02 16:43:18,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:43:18,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:43:18,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:43:18,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:43:18,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:43:16" (1/3) ... [2023-12-02 16:43:18,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037f044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:43:18, skipping insertion in model container [2023-12-02 16:43:18,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:17" (2/3) ... [2023-12-02 16:43:18,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037f044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:43:18, skipping insertion in model container [2023-12-02 16:43:18,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:43:18" (3/3) ... [2023-12-02 16:43:18,428 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-12-02 16:43:18,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:43:18,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:43:18,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:43:18,486 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;@65263171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:43:18,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:43:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:43:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 16:43:18,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:18,499 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:18,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:18,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1679957602, now seen corresponding path program 1 times [2023-12-02 16:43:18,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:43:18,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095231875] [2023-12-02 16:43:18,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:18,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:43:18,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:43:18,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988061755] [2023-12-02 16:43:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:18,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:43:18,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:43:18,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:43:18,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:43:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:43:18,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:43:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:43:19,110 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:43:19,113 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:43:19,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:43:19,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:43:19,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 16:43:19,320 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:43:19,324 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:43:19,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:43:19 BoogieIcfgContainer [2023-12-02 16:43:19,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:43:19,404 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:43:19,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:43:19,405 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:43:19,405 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:43:18" (3/4) ... [2023-12-02 16:43:19,408 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:43:19,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:43:19,410 INFO L158 Benchmark]: Toolchain (without parser) took 2420.52ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 107.8MB in the beginning and 93.0MB in the end (delta: 14.9MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,411 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:43:19,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.40ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 91.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.69ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 85.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,413 INFO L158 Benchmark]: Boogie Preprocessor took 56.34ms. Allocated memory is still 146.8MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,413 INFO L158 Benchmark]: RCFGBuilder took 963.95ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 82.7MB in the beginning and 141.2MB in the end (delta: -58.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,414 INFO L158 Benchmark]: TraceAbstraction took 980.97ms. Allocated memory is still 176.2MB. Free memory was 141.2MB in the beginning and 94.0MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,415 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 176.2MB. Free memory was 94.0MB in the beginning and 93.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:43:19,418 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.40ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 91.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.69ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 85.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.34ms. Allocated memory is still 146.8MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 963.95ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 82.7MB in the beginning and 141.2MB in the end (delta: -58.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * TraceAbstraction took 980.97ms. Allocated memory is still 176.2MB. Free memory was 141.2MB in the beginning and 94.0MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 176.2MB. Free memory was 94.0MB in the beginning and 93.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of bitwiseOr at line 81, overapproximation of bitwiseAnd at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 70. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 2; [L23] signed long int var_1_5 = 5; [L24] unsigned char var_1_8 = 0; [L25] float var_1_9 = 128.6; [L26] float var_1_10 = 32.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 64; [L29] unsigned char var_1_13 = 4; [L30] unsigned char var_1_14 = 4; [L31] unsigned long int var_1_15 = 0; [L32] signed short int var_1_16 = 0; [L33] signed char var_1_17 = 1; [L34] signed char var_1_18 = -1; [L35] signed char var_1_19 = 0; [L36] signed long int var_1_20 = -64; [L37] unsigned char var_1_22 = 0; [L38] unsigned char var_1_23 = 0; [L39] signed short int var_1_24 = -4; [L40] unsigned short int var_1_29 = 8; [L41] unsigned short int var_1_33 = 48416; [L42] unsigned char var_1_35 = 4; [L43] unsigned long int var_1_37 = 32; [L44] unsigned char var_1_38 = 8; [L45] double var_1_40 = 31.75; [L46] double var_1_41 = 5.5; [L47] signed char var_1_43 = 100; [L48] signed long int last_1_var_1_5 = 5; [L178] isInitial = 1 [L179] FCALL initially() [L180] COND TRUE 1 [L181] CALL updateLastVariables() [L171] last_1_var_1_5 = var_1_5 [L181] RET updateLastVariables() [L182] CALL updateVariables() [L137] var_1_9 = __VERIFIER_nondet_float() [L138] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L139] var_1_10 = __VERIFIER_nondet_float() [L140] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L141] var_1_11 = __VERIFIER_nondet_uchar() [L142] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L143] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L144] var_1_12 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_12 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_12 >= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L146] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L147] var_1_13 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L149] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L150] var_1_14 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L152] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L153] var_1_18 = __VERIFIER_nondet_char() [L154] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L155] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L156] var_1_19 = __VERIFIER_nondet_char() [L157] CALL assume_abort_if_not(var_1_19 >= -15) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_19 >= -15) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L158] CALL assume_abort_if_not(var_1_19 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_19 <= 16) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L159] var_1_23 = __VERIFIER_nondet_uchar() [L160] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L161] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L162] var_1_33 = __VERIFIER_nondet_ushort() [L163] CALL assume_abort_if_not(var_1_33 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_33 >= 32767) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L164] CALL assume_abort_if_not(var_1_33 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_33 <= 65534) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L165] var_1_40 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_40 >= 0.0F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854776000e+12F && var_1_40 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not((var_1_40 >= 0.0F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854776000e+12F && var_1_40 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L167] var_1_41 = __VERIFIER_nondet_double() [L168] CALL assume_abort_if_not((var_1_41 >= 0.0F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854776000e+12F && var_1_41 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not((var_1_41 >= 0.0F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854776000e+12F && var_1_41 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=16, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L182] RET updateVariables() [L183] CALL step() [L52] COND FALSE !(\read(var_1_23)) [L57] var_1_24 = ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) [L59] COND TRUE (var_1_20 / var_1_12) < var_1_11 [L60] var_1_29 = var_1_12 [L64] COND FALSE !(\read(var_1_22)) [L67] COND TRUE ((((var_1_8) < (var_1_12)) ? (var_1_8) : (var_1_12))) >= var_1_20 [L68] var_1_37 = var_1_8 [L70] COND TRUE (var_1_9 * (var_1_40 - var_1_41)) >= var_1_9 [L71] COND TRUE (~ var_1_14) <= (((((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))) < 0 ) ? -((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))) : ((((var_1_13) < (var_1_14)) ? (var_1_13) : (var_1_14))))) [L72] var_1_38 = var_1_14 [L79] COND FALSE !(((((var_1_10) > (64.75f)) ? (var_1_10) : (64.75f))) <= var_1_40) [L86] var_1_43 = var_1_13 [L88] COND FALSE !(var_1_9 > var_1_10) [L91] var_1_20 = var_1_8 [L92] var_1_22 = var_1_23 [L93] COND FALSE !(\read(var_1_22)) [L96] var_1_16 = (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11) [L97] COND FALSE !(\read(var_1_22)) [L104] var_1_17 = -32 [L106] unsigned long int stepLocal_1 = var_1_20 + var_1_15; [L107] signed long int stepLocal_0 = var_1_20; [L108] COND TRUE stepLocal_1 < -200 [L109] COND FALSE !(\read(var_1_22)) [L116] var_1_1 = var_1_20 [L121] signed long int stepLocal_4 = 256; [L122] unsigned char stepLocal_3 = var_1_22; [L123] unsigned long int stepLocal_2 = var_1_15; [L124] COND FALSE !(stepLocal_4 > (var_1_15 - (last_1_var_1_5 + var_1_8))) [L127] COND FALSE !(stepLocal_3 || var_1_22) [L132] var_1_5 = -10000 [L183] RET step() [L184] CALL, EXPR property() [L174] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) [L174] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) [L174] EXPR (var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)) [L174] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) [L174] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) [L174] EXPR (((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32))) [L174-L175] return (((((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32)))) && (var_1_20 == ((signed long int) var_1_8))) && (var_1_22 == ((unsigned char) var_1_23)) ; [L184] RET, EXPR property() [L184] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=-31, var_1_19=16, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=127, var_1_29=64, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=0, var_1_5=-10000, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=-31, var_1_19=16, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=127, var_1_29=64, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=0, var_1_5=-10000, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 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 16:43:19,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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_53114605-88c6-4960-85eb-c565d831d9ea/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 c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:43:21,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:43:21,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:43:21,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:43:21,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:43:21,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:43:21,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:43:21,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:43:21,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:43:21,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:43:21,502 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:43:21,503 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:43:21,503 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:43:21,504 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:43:21,505 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:43:21,505 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:43:21,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:43:21,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:43:21,507 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:43:21,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:43:21,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:43:21,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:43:21,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:43:21,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:43:21,510 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:43:21,511 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:43:21,511 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:43:21,512 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:43:21,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:43:21,512 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:43:21,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:43:21,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:43:21,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:43:21,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:43:21,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:43:21,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:43:21,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:43:21,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:43:21,515 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:43:21,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:43:21,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:43:21,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:43:21,517 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:43:21,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:43:21,517 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_53114605-88c6-4960-85eb-c565d831d9ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf [2023-12-02 16:43:21,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:43:21,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:43:21,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:43:21,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:43:21,806 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:43:21,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-12-02 16:43:24,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:43:24,849 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:43:24,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-12-02 16:43:24,864 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data/669b2ef1f/36887237f9c44ac6b8d8fd3d6609f754/FLAG892c25aca [2023-12-02 16:43:24,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/data/669b2ef1f/36887237f9c44ac6b8d8fd3d6609f754 [2023-12-02 16:43:24,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:43:24,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:43:24,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:43:24,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:43:24,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:43:24,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:43:24" (1/1) ... [2023-12-02 16:43:24,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7d0584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:24, skipping insertion in model container [2023-12-02 16:43:24,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:43:24" (1/1) ... [2023-12-02 16:43:24,924 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:43:25,059 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_53114605-88c6-4960-85eb-c565d831d9ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-12-02 16:43:25,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:43:25,140 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:43:25,151 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_53114605-88c6-4960-85eb-c565d831d9ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-12-02 16:43:25,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:43:25,205 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:43:25,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25 WrapperNode [2023-12-02 16:43:25,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:43:25,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:43:25,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:43:25,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:43:25,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,258 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-12-02 16:43:25,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:43:25,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:43:25,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:43:25,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:43:25,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:43:25,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:43:25,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:43:25,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:43:25,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (1/1) ... [2023-12-02 16:43:25,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:43:25,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:43:25,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:43:25,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:43:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:43:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:43:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:43:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:43:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:43:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:43:25,458 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:43:25,461 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:43:30,068 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:43:30,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:43:30,120 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:43:30,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:43:30 BoogieIcfgContainer [2023-12-02 16:43:30,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:43:30,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:43:30,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:43:30,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:43:30,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:43:24" (1/3) ... [2023-12-02 16:43:30,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6479ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:43:30, skipping insertion in model container [2023-12-02 16:43:30,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:43:25" (2/3) ... [2023-12-02 16:43:30,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6479ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:43:30, skipping insertion in model container [2023-12-02 16:43:30,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:43:30" (3/3) ... [2023-12-02 16:43:30,131 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-12-02 16:43:30,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:43:30,149 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:43:30,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:43:30,198 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;@17c56066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:43:30,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:43:30,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:43:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 16:43:30,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:30,218 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:30,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:30,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:30,224 INFO L85 PathProgramCache]: Analyzing trace with hash 352974655, now seen corresponding path program 1 times [2023-12-02 16:43:30,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:30,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80046121] [2023-12-02 16:43:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:30,238 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 16:43:30,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:30,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:30,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:30,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:43:30,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-12-02 16:43:30,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:30,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:30,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80046121] [2023-12-02 16:43:30,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80046121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:30,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:43:30,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:43:30,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706359818] [2023-12-02 16:43:30,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:30,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:43:30,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:30,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:43:30,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:43:30,738 INFO L87 Difference]: Start difference. First operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:43:30,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:30,808 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2023-12-02 16:43:30,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:43:30,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2023-12-02 16:43:30,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:30,820 INFO L225 Difference]: With dead ends: 134 [2023-12-02 16:43:30,820 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 16:43:30,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 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 16:43:30,828 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:30,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:43:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 16:43:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-02 16:43:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:43:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 101 transitions. [2023-12-02 16:43:30,876 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 101 transitions. Word has length 132 [2023-12-02 16:43:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:30,877 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 101 transitions. [2023-12-02 16:43:30,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 16:43:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 101 transitions. [2023-12-02 16:43:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 16:43:30,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:30,882 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:30,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:31,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:31,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:31,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1281691337, now seen corresponding path program 1 times [2023-12-02 16:43:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273768252] [2023-12-02 16:43:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:31,091 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 16:43:31,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:31,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:31,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:31,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:43:31,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:32,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:32,093 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:32,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273768252] [2023-12-02 16:43:32,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273768252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:32,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:43:32,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:43:32,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530629899] [2023-12-02 16:43:32,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:32,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:43:32,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:32,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:43:32,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:43:32,098 INFO L87 Difference]: Start difference. First operand 66 states and 101 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:32,227 INFO L93 Difference]: Finished difference Result 193 states and 295 transitions. [2023-12-02 16:43:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:43:32,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-12-02 16:43:32,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:32,231 INFO L225 Difference]: With dead ends: 193 [2023-12-02 16:43:32,232 INFO L226 Difference]: Without dead ends: 128 [2023-12-02 16:43:32,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 16:43:32,234 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 31 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:32,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 180 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:43:32,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-02 16:43:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 119. [2023-12-02 16:43:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 76 states have internal predecessors, (100), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 16:43:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 180 transitions. [2023-12-02 16:43:32,262 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 180 transitions. Word has length 132 [2023-12-02 16:43:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:32,264 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 180 transitions. [2023-12-02 16:43:32,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 180 transitions. [2023-12-02 16:43:32,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 16:43:32,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:32,267 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:32,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:32,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:32,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:32,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1992207605, now seen corresponding path program 1 times [2023-12-02 16:43:32,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:32,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816701324] [2023-12-02 16:43:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:32,470 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 16:43:32,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:32,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:32,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:32,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:43:32,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:33,201 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-02 16:43:33,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:43:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 16:43:33,541 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816701324] [2023-12-02 16:43:33,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816701324] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:43:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1849264233] [2023-12-02 16:43:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:33,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:43:33,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:43:33,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:43:33,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 16:43:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:33,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:43:33,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:33,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:33,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1849264233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:33,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:43:33,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 9 [2023-12-02 16:43:33,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475870216] [2023-12-02 16:43:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:33,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:43:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:33,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:43:33,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:43:33,903 INFO L87 Difference]: Start difference. First operand 119 states and 180 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:34,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:34,026 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2023-12-02 16:43:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:43:34,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-12-02 16:43:34,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:34,030 INFO L225 Difference]: With dead ends: 246 [2023-12-02 16:43:34,030 INFO L226 Difference]: Without dead ends: 128 [2023-12-02 16:43:34,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:43:34,034 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 92 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:34,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 259 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:43:34,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-02 16:43:34,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 119. [2023-12-02 16:43:34,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 76 states have (on average 1.263157894736842) internal successors, (96), 76 states have internal predecessors, (96), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 16:43:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 176 transitions. [2023-12-02 16:43:34,059 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 176 transitions. Word has length 132 [2023-12-02 16:43:34,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:34,060 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 176 transitions. [2023-12-02 16:43:34,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:34,060 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 176 transitions. [2023-12-02 16:43:34,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 16:43:34,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:34,063 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:34,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 16:43:34,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:34,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:34,469 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:34,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:34,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1599180595, now seen corresponding path program 1 times [2023-12-02 16:43:34,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:34,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547571007] [2023-12-02 16:43:34,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:34,471 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 16:43:34,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:34,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:34,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:34,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:43:34,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:35,573 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:35,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:35,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:35,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547571007] [2023-12-02 16:43:35,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547571007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:35,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:43:35,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:43:35,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268762634] [2023-12-02 16:43:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:35,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:43:35,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:35,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:43:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:43:35,578 INFO L87 Difference]: Start difference. First operand 119 states and 176 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:36,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:36,322 INFO L93 Difference]: Finished difference Result 348 states and 517 transitions. [2023-12-02 16:43:36,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:43:36,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-12-02 16:43:36,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:36,327 INFO L225 Difference]: With dead ends: 348 [2023-12-02 16:43:36,328 INFO L226 Difference]: Without dead ends: 230 [2023-12-02 16:43:36,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:43:36,330 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 120 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:36,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 450 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 16:43:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-12-02 16:43:36,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 180. [2023-12-02 16:43:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 116 states have (on average 1.2672413793103448) internal successors, (147), 116 states have internal predecessors, (147), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 16:43:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 267 transitions. [2023-12-02 16:43:36,366 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 267 transitions. Word has length 132 [2023-12-02 16:43:36,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:36,367 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 267 transitions. [2023-12-02 16:43:36,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 267 transitions. [2023-12-02 16:43:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 16:43:36,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:36,371 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:36,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:36,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:36,577 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:36,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:36,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1623582443, now seen corresponding path program 1 times [2023-12-02 16:43:36,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:36,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258379401] [2023-12-02 16:43:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:36,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:43:36,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:36,579 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:36,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:36,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:43:36,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-02 16:43:37,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:43:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 16:43:37,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:37,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258379401] [2023-12-02 16:43:37,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258379401] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:43:37,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [454582321] [2023-12-02 16:43:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:37,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:43:37,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:43:37,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:43:37,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 16:43:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:37,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:43:37,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:37,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:37,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [454582321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:37,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:43:37,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6] total 8 [2023-12-02 16:43:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949109367] [2023-12-02 16:43:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:43:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:37,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:43:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:43:37,862 INFO L87 Difference]: Start difference. First operand 180 states and 267 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:38,141 INFO L93 Difference]: Finished difference Result 416 states and 614 transitions. [2023-12-02 16:43:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:43:38,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-12-02 16:43:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:38,145 INFO L225 Difference]: With dead ends: 416 [2023-12-02 16:43:38,145 INFO L226 Difference]: Without dead ends: 298 [2023-12-02 16:43:38,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 389 SyntacticMatches, 2 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 16:43:38,147 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 179 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:38,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 310 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:43:38,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-02 16:43:38,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 278. [2023-12-02 16:43:38,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 184 states have (on average 1.2771739130434783) internal successors, (235), 186 states have internal predecessors, (235), 88 states have call successors, (88), 5 states have call predecessors, (88), 5 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-02 16:43:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 411 transitions. [2023-12-02 16:43:38,188 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 411 transitions. Word has length 133 [2023-12-02 16:43:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:38,189 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 411 transitions. [2023-12-02 16:43:38,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:38,190 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 411 transitions. [2023-12-02 16:43:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 16:43:38,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:38,192 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:38,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:38,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 16:43:38,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:43:38,593 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:38,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:38,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1653660044, now seen corresponding path program 1 times [2023-12-02 16:43:38,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:38,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513599566] [2023-12-02 16:43:38,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:38,594 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 16:43:38,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:38,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:38,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 16:43:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:38,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:43:38,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:40,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:40,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:40,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513599566] [2023-12-02 16:43:40,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513599566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:40,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:43:40,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:43:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517038042] [2023-12-02 16:43:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:43:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:43:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:43:40,926 INFO L87 Difference]: Start difference. First operand 278 states and 411 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:41,589 INFO L93 Difference]: Finished difference Result 854 states and 1257 transitions. [2023-12-02 16:43:41,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:43:41,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-12-02 16:43:41,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:41,595 INFO L225 Difference]: With dead ends: 854 [2023-12-02 16:43:41,595 INFO L226 Difference]: Without dead ends: 577 [2023-12-02 16:43:41,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 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 16:43:41,597 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 79 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:41,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 304 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:43:41,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-02 16:43:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 553. [2023-12-02 16:43:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 366 states have (on average 1.2622950819672132) internal successors, (462), 370 states have internal predecessors, (462), 176 states have call successors, (176), 10 states have call predecessors, (176), 10 states have return successors, (176), 172 states have call predecessors, (176), 176 states have call successors, (176) [2023-12-02 16:43:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 814 transitions. [2023-12-02 16:43:41,657 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 814 transitions. Word has length 133 [2023-12-02 16:43:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:41,658 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 814 transitions. [2023-12-02 16:43:41,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:41,658 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 814 transitions. [2023-12-02 16:43:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 16:43:41,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:41,661 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:41,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 16:43:41,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:41,862 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:41,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:41,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1066854030, now seen corresponding path program 1 times [2023-12-02 16:43:41,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:41,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531515470] [2023-12-02 16:43:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:41,863 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 16:43:41,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:41,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:41,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:42,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:43:42,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:43,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:43,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:43,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531515470] [2023-12-02 16:43:43,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531515470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:43,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:43:43,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:43:43,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852599452] [2023-12-02 16:43:43,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:43,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:43:43,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:43:43,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:43:43,379 INFO L87 Difference]: Start difference. First operand 553 states and 814 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:43,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:43,824 INFO L93 Difference]: Finished difference Result 951 states and 1397 transitions. [2023-12-02 16:43:43,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:43:43,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-12-02 16:43:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:43,829 INFO L225 Difference]: With dead ends: 951 [2023-12-02 16:43:43,830 INFO L226 Difference]: Without dead ends: 674 [2023-12-02 16:43:43,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 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 16:43:43,831 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 72 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:43,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 319 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:43:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-12-02 16:43:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 662. [2023-12-02 16:43:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 439 states have (on average 1.2596810933940774) internal successors, (553), 444 states have internal predecessors, (553), 210 states have call successors, (210), 12 states have call predecessors, (210), 12 states have return successors, (210), 205 states have call predecessors, (210), 210 states have call successors, (210) [2023-12-02 16:43:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 973 transitions. [2023-12-02 16:43:43,903 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 973 transitions. Word has length 133 [2023-12-02 16:43:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:43,903 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 973 transitions. [2023-12-02 16:43:43,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 973 transitions. [2023-12-02 16:43:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 16:43:43,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:43,905 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:43,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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)] Ended with exit code 0 [2023-12-02 16:43:44,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:44,113 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:44,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:44,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1218580807, now seen corresponding path program 1 times [2023-12-02 16:43:44,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:44,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532714511] [2023-12-02 16:43:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:44,114 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 16:43:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:44,114 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:44,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:44,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:43:44,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-12-02 16:43:44,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:43:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-02 16:43:44,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:43:44,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532714511] [2023-12-02 16:43:44,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532714511] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:43:44,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [123026354] [2023-12-02 16:43:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:44,770 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:43:44,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:43:44,771 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:43:44,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 16:43:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:45,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:43:45,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 16:43:45,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:43:45,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [123026354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:43:45,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:43:45,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2023-12-02 16:43:45,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760139258] [2023-12-02 16:43:45,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:43:45,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:43:45,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:43:45,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:43:45,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:43:45,666 INFO L87 Difference]: Start difference. First operand 662 states and 973 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:46,925 INFO L93 Difference]: Finished difference Result 1176 states and 1728 transitions. [2023-12-02 16:43:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:43:46,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-12-02 16:43:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:46,930 INFO L225 Difference]: With dead ends: 1176 [2023-12-02 16:43:46,930 INFO L226 Difference]: Without dead ends: 842 [2023-12-02 16:43:46,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:43:46,933 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 165 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:46,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 616 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 16:43:46,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-12-02 16:43:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 811. [2023-12-02 16:43:47,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 530 states have (on average 1.2452830188679245) internal successors, (660), 537 states have internal predecessors, (660), 264 states have call successors, (264), 16 states have call predecessors, (264), 16 states have return successors, (264), 257 states have call predecessors, (264), 264 states have call successors, (264) [2023-12-02 16:43:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1188 transitions. [2023-12-02 16:43:47,057 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1188 transitions. Word has length 134 [2023-12-02 16:43:47,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:47,057 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1188 transitions. [2023-12-02 16:43:47,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 16:43:47,057 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1188 transitions. [2023-12-02 16:43:47,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 16:43:47,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:47,059 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:47,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 16:43:47,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:47,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:47,459 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:47,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:47,460 INFO L85 PathProgramCache]: Analyzing trace with hash 275795540, now seen corresponding path program 1 times [2023-12-02 16:43:47,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:43:47,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491681009] [2023-12-02 16:43:47,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:47,460 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 16:43:47,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:43:47,461 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/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 16:43:47,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53114605-88c6-4960-85eb-c565d831d9ea/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 16:43:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:47,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 16:43:47,796 INFO L285 TraceCheckSpWp]: Computing forward predicates...