./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 26d624a9f364a3ec6745ec9e53f7f0150e248a4fcfa20eb8b3a2dbc29bb66a03 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:14:08,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:14:08,816 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:14:08,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:14:08,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:14:08,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:14:08,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:14:08,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:14:08,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:14:08,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:14:08,849 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:14:08,849 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:14:08,850 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:14:08,850 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:14:08,851 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:14:08,851 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:14:08,851 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:14:08,852 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:14:08,852 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:14:08,853 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:14:08,853 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:14:08,854 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:14:08,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:14:08,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:14:08,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:14:08,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:14:08,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:14:08,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:14:08,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:14:08,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:14:08,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:14:08,859 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:14:08,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:14:08,860 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:14:08,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:14:08,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:14:08,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:14:08,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:14:08,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:14:08,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:14:08,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:14:08,861 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:14:08,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:14:08,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:14:08,862 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:14:08,862 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:14:08,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:14:08,863 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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d624a9f364a3ec6745ec9e53f7f0150e248a4fcfa20eb8b3a2dbc29bb66a03 [2023-12-02 19:14:09,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:14:09,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:14:09,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:14:09,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:14:09,106 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:14:09,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i [2023-12-02 19:14:11,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:14:12,019 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:14:12,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i [2023-12-02 19:14:12,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data/445284a9c/7c4a4cc595f54e1a9826c9612492edc1/FLAG30fc8cfe5 [2023-12-02 19:14:12,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data/445284a9c/7c4a4cc595f54e1a9826c9612492edc1 [2023-12-02 19:14:12,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:14:12,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:14:12,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:14:12,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:14:12,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:14:12,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc2469d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12, skipping insertion in model container [2023-12-02 19:14:12,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:14:12,208 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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i[917,930] [2023-12-02 19:14:12,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:14:12,269 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:14:12,279 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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i[917,930] [2023-12-02 19:14:12,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:14:12,318 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:14:12,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12 WrapperNode [2023-12-02 19:14:12,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:14:12,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:14:12,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:14:12,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:14:12,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,366 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2023-12-02 19:14:12,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:14:12,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:14:12,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:14:12,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:14:12,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:14:12,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:14:12,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:14:12,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:14:12,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (1/1) ... [2023-12-02 19:14:12,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:14:12,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:12,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:14:12,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:14:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:14:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:14:12,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:14:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:14:12,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:14:12,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:14:12,554 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:14:12,556 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:14:12,810 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:14:12,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:14:12,975 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:14:12,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:12 BoogieIcfgContainer [2023-12-02 19:14:12,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:14:12,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:14:12,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:14:12,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:14:12,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:14:12" (1/3) ... [2023-12-02 19:14:12,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38aa25a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:12, skipping insertion in model container [2023-12-02 19:14:12,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:12" (2/3) ... [2023-12-02 19:14:12,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38aa25a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:12, skipping insertion in model container [2023-12-02 19:14:12,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:12" (3/3) ... [2023-12-02 19:14:12,985 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-77.i [2023-12-02 19:14:13,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:14:13,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:14:13,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:14:13,054 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;@1c4a6de1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:14:13,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:14:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 19:14:13,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 19:14:13,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:13,066 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:13,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:14:13,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1139741795, now seen corresponding path program 1 times [2023-12-02 19:14:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:13,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665192153] [2023-12-02 19:14:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:13,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:13,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:14:13,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812310233] [2023-12-02 19:14:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:13,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:13,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:13,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:14:13,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:14:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:14:13,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:14:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:14:13,735 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:14:13,737 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:14:13,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:14:13,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:14:13,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:13,945 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:14:13,948 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:14:14,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:14:14 BoogieIcfgContainer [2023-12-02 19:14:14,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:14:14,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:14:14,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:14:14,014 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:14:14,015 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:12" (3/4) ... [2023-12-02 19:14:14,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:14:14,018 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:14:14,019 INFO L158 Benchmark]: Toolchain (without parser) took 1975.97ms. Allocated memory is still 155.2MB. Free memory was 117.1MB in the beginning and 81.2MB in the end (delta: 35.8MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-12-02 19:14:14,019 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:14:14,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.51ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 103.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 19:14:14,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.49ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 99.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 19:14:14,021 INFO L158 Benchmark]: Boogie Preprocessor took 38.81ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 97.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:14:14,022 INFO L158 Benchmark]: RCFGBuilder took 570.08ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 121.1MB in the end (delta: -23.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-12-02 19:14:14,022 INFO L158 Benchmark]: TraceAbstraction took 1034.28ms. Allocated memory is still 155.2MB. Free memory was 120.2MB in the beginning and 81.6MB in the end (delta: 38.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 19:14:14,023 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 155.2MB. Free memory was 81.6MB in the beginning and 81.2MB in the end (delta: 390.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:14:14,026 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.51ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 103.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.49ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 99.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.81ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 97.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.08ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 121.1MB in the end (delta: -23.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1034.28ms. Allocated memory is still 155.2MB. Free memory was 120.2MB in the beginning and 81.6MB in the end (delta: 38.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 155.2MB. Free memory was 81.6MB in the beginning and 81.2MB in the end (delta: 390.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 2; [L23] float var_1_2 = 255.5; [L24] float var_1_3 = 99.8; [L25] signed char var_1_4 = -25; [L26] signed long int var_1_5 = -16; [L27] float var_1_6 = 255.25; [L28] unsigned short int var_1_7 = 16; [L29] signed char var_1_8 = -10; [L30] signed char var_1_9 = -8; [L31] unsigned short int var_1_10 = 8; [L32] unsigned short int var_1_11 = 10000; [L33] unsigned short int var_1_12 = 5; [L34] signed short int var_1_13 = 200; [L35] unsigned char var_1_14 = 0; [L36] unsigned char var_1_15 = 0; [L37] unsigned short int var_1_16 = 35895; [L38] unsigned short int var_1_17 = 18336; [L39] unsigned char var_1_18 = 0; [L40] signed long int var_1_19 = -50; [L135] isInitial = 1 [L136] FCALL initially() [L137] COND TRUE 1 [L138] FCALL updateLastVariables() [L139] CALL updateVariables() [L91] var_1_2 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_3=499/5, var_1_4=-25, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_3=499/5, var_1_4=-25, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L93] var_1_3 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=-25, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=-25, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L95] var_1_4 = __VERIFIER_nondet_char() [L96] CALL assume_abort_if_not(var_1_4 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_4 >= -127) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L97] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=-16, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L98] var_1_5 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L100] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_6=1021/4, var_1_7=16, var_1_8=-10, var_1_9=-8] [L101] var_1_6 = __VERIFIER_nondet_float() [L102] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16, var_1_8=-10, var_1_9=-8] [L103] var_1_7 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_8=-10, var_1_9=-8] [L105] CALL assume_abort_if_not(var_1_7 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-8] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_7 <= 65534) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-8] [L106] var_1_9 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L108] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, var_1_10=8, var_1_11=10000, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L109] var_1_11 = __VERIFIER_nondet_ushort() [L110] CALL assume_abort_if_not(var_1_11 >= 8191) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_11 >= 8191) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L111] CALL assume_abort_if_not(var_1_11 <= 16384) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_11 <= 16384) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=5, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L112] var_1_12 = __VERIFIER_nondet_ushort() [L113] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L114] CALL assume_abort_if_not(var_1_12 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_12 <= 16383) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=0, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L115] var_1_14 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L117] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=35895, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L118] var_1_16 = __VERIFIER_nondet_ushort() [L119] CALL assume_abort_if_not(var_1_16 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_16 >= 32767) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L120] CALL assume_abort_if_not(var_1_16 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_16 <= 65535) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=18336, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L121] var_1_17 = __VERIFIER_nondet_ushort() [L122] CALL assume_abort_if_not(var_1_17 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_17 >= 16383) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L123] CALL assume_abort_if_not(var_1_17 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_17 <= 32767) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L124] var_1_18 = __VERIFIER_nondet_uchar() [L125] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L126] CALL assume_abort_if_not(var_1_18 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_18 <= 0) VAL [isInitial=1, var_1_10=8, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=-50, var_1_1=2, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-10, var_1_9=-127] [L139] RET updateVariables() [L140] CALL step() [L44] signed long int stepLocal_0 = (((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)); [L45] COND FALSE !(stepLocal_0 <= var_1_5) [L52] var_1_1 = var_1_7 [L54] COND TRUE (- var_1_7) < (var_1_5 * var_1_4) [L55] var_1_8 = var_1_9 [L57] var_1_10 = (50 + ((var_1_11 + 10000) - var_1_12)) [L58] COND FALSE !((var_1_6 * var_1_2) <= var_1_3) [L65] signed long int stepLocal_1 = var_1_16 - (var_1_17 - 256); [L66] COND TRUE var_1_3 != var_1_6 [L67] COND FALSE !(var_1_1 >= stepLocal_1) [L70] var_1_15 = var_1_18 [L75] signed long int stepLocal_4 = - var_1_5; [L76] signed long int stepLocal_3 = var_1_7 + (128 + var_1_10); [L77] signed long int stepLocal_2 = ((((var_1_5) < (var_1_17)) ? (var_1_5) : (var_1_17))) / var_1_11; [L78] COND FALSE !(var_1_10 < stepLocal_4) [L83] COND FALSE !(var_1_10 < stepLocal_2) [L86] var_1_19 = var_1_16 [L140] RET step() [L141] CALL, EXPR property() [L131-L132] return ((((((((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) <= var_1_5) ? (((- var_1_3) > ((((var_1_2) > (var_1_6)) ? (var_1_2) : (var_1_6)))) ? (var_1_1 == ((unsigned short int) var_1_7)) : (var_1_1 == ((unsigned short int) var_1_7))) : (var_1_1 == ((unsigned short int) var_1_7))) && (((- var_1_7) < (var_1_5 * var_1_4)) ? (var_1_8 == ((signed char) var_1_9)) : 1)) && (var_1_10 == ((unsigned short int) (50 + ((var_1_11 + 10000) - var_1_12))))) && (((var_1_6 * var_1_2) <= var_1_3) ? (var_1_14 ? (var_1_13 == ((signed short int) (-10 + var_1_12))) : (var_1_13 == ((signed short int) var_1_4))) : 1)) && ((var_1_3 != var_1_6) ? ((var_1_1 >= (var_1_16 - (var_1_17 - 256))) ? (var_1_15 == ((unsigned char) var_1_18)) : (var_1_15 == ((unsigned char) var_1_18))) : (var_1_15 == ((unsigned char) var_1_18)))) && ((var_1_10 < (- var_1_5)) ? (((var_1_7 + (128 + var_1_10)) <= var_1_8) ? (var_1_19 == ((signed long int) var_1_4)) : 1) : ((var_1_10 < (((((var_1_5) < (var_1_17)) ? (var_1_5) : (var_1_17))) / var_1_11)) ? (var_1_19 == ((signed long int) ((((var_1_7) > (var_1_9)) ? (var_1_7) : (var_1_9))))) : (var_1_19 == ((signed long int) var_1_16)))) ; [L141] RET, EXPR property() [L141] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=26424, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=32767, var_1_1=16639, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-127, var_1_9=-127] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=26424, var_1_11=16384, var_1_12=10, var_1_13=200, var_1_14=1, var_1_15=0, var_1_16=32767, var_1_17=16383, var_1_18=0, var_1_19=32767, var_1_1=16639, var_1_4=2, var_1_5=1, var_1_7=16639, var_1_8=-127, var_1_9=-127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 23, 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=45occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 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 19:14:14,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 26d624a9f364a3ec6745ec9e53f7f0150e248a4fcfa20eb8b3a2dbc29bb66a03 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:14:15,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:14:16,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 19:14:16,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:14:16,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:14:16,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:14:16,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:14:16,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:14:16,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:14:16,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:14:16,100 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:14:16,101 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:14:16,101 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:14:16,102 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:14:16,102 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:14:16,103 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:14:16,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:14:16,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:14:16,105 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:14:16,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:14:16,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:14:16,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:14:16,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:14:16,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:14:16,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:14:16,108 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:14:16,109 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:14:16,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:14:16,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:14:16,110 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:14:16,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:14:16,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:14:16,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:14:16,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:14:16,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:14:16,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:14:16,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:14:16,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:14:16,113 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:14:16,113 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:14:16,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:14:16,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:14:16,114 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:14:16,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:14:16,114 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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d624a9f364a3ec6745ec9e53f7f0150e248a4fcfa20eb8b3a2dbc29bb66a03 [2023-12-02 19:14:16,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:14:16,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:14:16,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:14:16,403 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:14:16,403 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:14:16,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i [2023-12-02 19:14:19,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:14:19,360 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:14:19,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i [2023-12-02 19:14:19,370 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data/5e48ce8f0/ba8abdb03e9742bfa5f2924a1ad4fcc9/FLAGaebe86b54 [2023-12-02 19:14:19,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/data/5e48ce8f0/ba8abdb03e9742bfa5f2924a1ad4fcc9 [2023-12-02 19:14:19,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:14:19,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:14:19,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:14:19,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:14:19,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:14:19,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543aad48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19, skipping insertion in model container [2023-12-02 19:14:19,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:14:19,581 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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i[917,930] [2023-12-02 19:14:19,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:14:19,648 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:14:19,661 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_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-77.i[917,930] [2023-12-02 19:14:19,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:14:19,707 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:14:19,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19 WrapperNode [2023-12-02 19:14:19,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:14:19,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:14:19,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:14:19,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:14:19,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,757 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-12-02 19:14:19,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:14:19,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:14:19,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:14:19,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:14:19,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:14:19,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:14:19,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:14:19,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:14:19,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (1/1) ... [2023-12-02 19:14:19,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:14:19,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:19,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:14:19,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:14:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:14:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:14:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:14:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:14:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:14:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:14:19,946 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:14:19,948 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:14:21,104 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:14:21,161 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:14:21,161 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:14:21,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:21 BoogieIcfgContainer [2023-12-02 19:14:21,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:14:21,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:14:21,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:14:21,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:14:21,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:14:19" (1/3) ... [2023-12-02 19:14:21,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532e04a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:21, skipping insertion in model container [2023-12-02 19:14:21,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:19" (2/3) ... [2023-12-02 19:14:21,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532e04a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:21, skipping insertion in model container [2023-12-02 19:14:21,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:21" (3/3) ... [2023-12-02 19:14:21,172 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-77.i [2023-12-02 19:14:21,186 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:14:21,187 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:14:21,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:14:21,232 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;@46899707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:14:21,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:14:21,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 19:14:21,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 19:14:21,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:21,253 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:21,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:14:21,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:21,259 INFO L85 PathProgramCache]: Analyzing trace with hash -731401140, now seen corresponding path program 1 times [2023-12-02 19:14:21,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:14:21,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972336957] [2023-12-02 19:14:21,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:21,274 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 19:14:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:14:21,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:21,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:21,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 19:14:21,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:14:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 512 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-12-02 19:14:21,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:14:21,602 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:14:21,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972336957] [2023-12-02 19:14:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972336957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:21,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:14:21,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:14:21,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325811622] [2023-12-02 19:14:21,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:21,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:14:21,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:14:21,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:14:21,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:14:21,640 INFO L87 Difference]: Start difference. First operand has 62 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:14:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:22,200 INFO L93 Difference]: Finished difference Result 121 states and 215 transitions. [2023-12-02 19:14:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:14:22,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2023-12-02 19:14:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:22,220 INFO L225 Difference]: With dead ends: 121 [2023-12-02 19:14:22,228 INFO L226 Difference]: Without dead ends: 60 [2023-12-02 19:14:22,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 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 19:14:22,234 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:22,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:14:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-02 19:14:22,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-02 19:14:22,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 19:14:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 92 transitions. [2023-12-02 19:14:22,273 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 92 transitions. Word has length 142 [2023-12-02 19:14:22,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:22,274 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 92 transitions. [2023-12-02 19:14:22,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:14:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 92 transitions. [2023-12-02 19:14:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 19:14:22,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:22,279 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:22,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:22,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:22,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:14:22,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1451628806, now seen corresponding path program 1 times [2023-12-02 19:14:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:14:22,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172528832] [2023-12-02 19:14:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:22,486 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 19:14:22,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:14:22,488 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:22,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:22,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 19:14:22,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:14:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 590 proven. 78 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2023-12-02 19:14:24,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:14:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-02 19:14:24,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:14:24,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172528832] [2023-12-02 19:14:24,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172528832] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 19:14:24,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:14:24,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-12-02 19:14:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216616253] [2023-12-02 19:14:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:24,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:14:24,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:14:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:14:24,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-02 19:14:24,289 INFO L87 Difference]: Start difference. First operand 60 states and 92 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:14:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:24,756 INFO L93 Difference]: Finished difference Result 119 states and 183 transitions. [2023-12-02 19:14:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:14:24,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2023-12-02 19:14:24,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:24,769 INFO L225 Difference]: With dead ends: 119 [2023-12-02 19:14:24,769 INFO L226 Difference]: Without dead ends: 60 [2023-12-02 19:14:24,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-02 19:14:24,771 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:24,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 168 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:14:24,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-02 19:14:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-02 19:14:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 19:14:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 91 transitions. [2023-12-02 19:14:24,781 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 91 transitions. Word has length 142 [2023-12-02 19:14:24,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:24,782 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 91 transitions. [2023-12-02 19:14:24,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:14:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 91 transitions. [2023-12-02 19:14:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 19:14:24,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:24,785 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:24,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:24,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:24,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:14:24,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:24,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1451688388, now seen corresponding path program 1 times [2023-12-02 19:14:24,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:14:24,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380986550] [2023-12-02 19:14:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:24,987 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 19:14:24,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:14:24,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:24,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:14:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:25,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 19:14:25,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:27:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-02 19:27:25,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:27:25,545 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:27:25,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380986550] [2023-12-02 19:27:25,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380986550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:27:25,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:27:25,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 19:27:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174395053] [2023-12-02 19:27:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:27:25,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 19:27:25,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:27:25,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 19:27:25,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-12-02 19:27:25,556 INFO L87 Difference]: Start difference. First operand 60 states and 91 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:27:52,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:27:53,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 19:28:02,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:28:02,309 INFO L93 Difference]: Finished difference Result 128 states and 181 transitions. [2023-12-02 19:28:02,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 19:28:02,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2023-12-02 19:28:02,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:28:02,313 INFO L225 Difference]: With dead ends: 128 [2023-12-02 19:28:02,314 INFO L226 Difference]: Without dead ends: 126 [2023-12-02 19:28:02,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:28:02,316 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 122 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:28:02,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 369 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time] [2023-12-02 19:28:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-02 19:28:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 86. [2023-12-02 19:28:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-02 19:28:02,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions. [2023-12-02 19:28:02,339 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 127 transitions. Word has length 142 [2023-12-02 19:28:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:28:02,340 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 127 transitions. [2023-12-02 19:28:02,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:28:02,341 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 127 transitions. [2023-12-02 19:28:02,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 19:28:02,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:28:02,345 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:28:02,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:28:02,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:28:02,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:28:02,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:28:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1459314884, now seen corresponding path program 1 times [2023-12-02 19:28:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:28:02,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272424181] [2023-12-02 19:28:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:28:02,549 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 19:28:02,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:28:02,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/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 19:28:02,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffc85bfc-6bd7-40ec-9103-e9e7b807ad73/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 19:28:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:28:02,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 19:28:02,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:28:55,895 WARN L293 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)