./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:14:44,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:44,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:44,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:44,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:44,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:44,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:44,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:44,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:44,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:44,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:44,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:44,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:44,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:44,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:44,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:44,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:44,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:44,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:44,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:44,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:44,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:44,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:44,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:44,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:44,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:44,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:44,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:44,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:44,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:44,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:44,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:44,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:44,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:44,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:44,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:44,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:44,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:44,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:44,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:44,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:44,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:14:44,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:44,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:44,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:44,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:44,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:44,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:44,768 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:44,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:44,769 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:44,769 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:14:44,770 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:44,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:44,771 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:14:44,771 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:14:44,771 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:44,771 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:14:44,772 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:14:44,772 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:14:44,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:44,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:14:44,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:14:44,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:14:44,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:44,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:44,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:44,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:44,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:14:44,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:44,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:44,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:44,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:44,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:44,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:44,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:44,783 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:14:44,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:44,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:44,783 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:14:44,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:14:44,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:44,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:44,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb [2022-11-03 02:14:45,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:45,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:45,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:45,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:45,149 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:45,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/floats-cdfpl/sine_4.i [2022-11-03 02:14:45,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/ae1f53cf4/e1d01522a1f74c0a84c100ee7a582e0c/FLAG662fc146f [2022-11-03 02:14:45,737 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:45,738 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/sv-benchmarks/c/floats-cdfpl/sine_4.i [2022-11-03 02:14:45,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/ae1f53cf4/e1d01522a1f74c0a84c100ee7a582e0c/FLAG662fc146f [2022-11-03 02:14:46,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/ae1f53cf4/e1d01522a1f74c0a84c100ee7a582e0c [2022-11-03 02:14:46,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:46,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:46,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:46,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:46,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:46,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193b4d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46, skipping insertion in model container [2022-11-03 02:14:46,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:46,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:46,400 WARN L230 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_81f23466-65c9-4514-bd95-b41ce7375359/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2022-11-03 02:14:46,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:46,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:14:46,444 WARN L230 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_81f23466-65c9-4514-bd95-b41ce7375359/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2022-11-03 02:14:46,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:46,466 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:14:46,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46 WrapperNode [2022-11-03 02:14:46,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:46,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:46,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:14:46,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:14:46,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,515 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2022-11-03 02:14:46,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:46,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:14:46,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:14:46,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:14:46,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,542 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:14:46,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:14:46,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:14:46,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:14:46,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (1/1) ... [2022-11-03 02:14:46,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:46,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:46,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:14:46,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:14:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:14:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:14:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:14:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:14:46,707 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:14:46,709 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:14:46,802 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:14:46,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:14:46,835 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:14:46,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:46 BoogieIcfgContainer [2022-11-03 02:14:46,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:14:46,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:14:46,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:14:46,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:14:46,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:46" (1/3) ... [2022-11-03 02:14:46,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d759e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:46, skipping insertion in model container [2022-11-03 02:14:46,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:46" (2/3) ... [2022-11-03 02:14:46,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d759e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:46, skipping insertion in model container [2022-11-03 02:14:46,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:46" (3/3) ... [2022-11-03 02:14:46,847 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_4.i [2022-11-03 02:14:46,868 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:14:46,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:14:46,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:14:46,953 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=LoopsAndPotentialCycles, 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;@73029814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:14:46,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:14:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:14:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 02:14:46,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:46,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 02:14:46,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:46,980 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2022-11-03 02:14:46,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:46,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394893900] [2022-11-03 02:14:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:46,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:14:47,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:14:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:14:47,195 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:14:47,200 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:14:47,201 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:14:47,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:14:47,210 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 02:14:47,216 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:14:47,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:14:47 BoogieIcfgContainer [2022-11-03 02:14:47,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:14:47,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:14:47,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:14:47,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:14:47,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:46" (3/4) ... [2022-11-03 02:14:47,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:14:47,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:14:47,263 INFO L158 Benchmark]: Toolchain (without parser) took 1142.46ms. Allocated memory is still 121.6MB. Free memory was 78.1MB in the beginning and 69.1MB in the end (delta: 9.0MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,264 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:14:47,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.80ms. Allocated memory is still 121.6MB. Free memory was 77.9MB in the beginning and 96.1MB in the end (delta: -18.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.87ms. Allocated memory is still 121.6MB. Free memory was 96.1MB in the beginning and 94.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,267 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 121.6MB. Free memory was 94.7MB in the beginning and 93.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:14:47,273 INFO L158 Benchmark]: RCFGBuilder took 290.88ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 83.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,274 INFO L158 Benchmark]: TraceAbstraction took 412.64ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 69.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,276 INFO L158 Benchmark]: Witness Printer took 7.31ms. Allocated memory is still 121.6MB. Free memory was 69.4MB in the beginning and 69.1MB in the end (delta: 330.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:14:47,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.80ms. Allocated memory is still 121.6MB. Free memory was 77.9MB in the beginning and 96.1MB in the end (delta: -18.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.87ms. Allocated memory is still 121.6MB. Free memory was 96.1MB in the beginning and 94.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 121.6MB. Free memory was 94.7MB in the beginning and 93.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.88ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 83.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 412.64ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 69.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.31ms. Allocated memory is still 121.6MB. Free memory was 69.4MB in the beginning and 69.1MB in the end (delta: 330.5kB). 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: 37]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 36, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L24] COND FALSE !(!cond) [L30] RET assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L32] float x = IN; [L34] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [IN=53, x=53] [L36] COND TRUE !(result <= 1.01f && result >= -1.01f) VAL [IN=53, x=53] [L37] reach_error() VAL [IN=53, x=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 [2022-11-03 02:14:47,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/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_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:14:49,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:49,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:49,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:49,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:49,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:49,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:49,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:49,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:49,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:49,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:49,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:49,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:49,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:49,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:49,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:49,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:49,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:49,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:49,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:49,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:49,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:49,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:49,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:49,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:49,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:49,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:49,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:49,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:49,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:49,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:49,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:49,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:50,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:50,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:50,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:50,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:50,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:50,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:50,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:50,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:50,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 02:14:50,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:50,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:50,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:50,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:50,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:50,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:50,056 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:50,056 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:50,056 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:50,056 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:50,057 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:50,057 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:50,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:50,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:14:50,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:14:50,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:50,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:50,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:50,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:50,061 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:14:50,061 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:14:50,061 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:14:50,061 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:14:50,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:50,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:50,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:50,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:50,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:14:50,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:50,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:50,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:50,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:50,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:50,064 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:14:50,064 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:14:50,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:50,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:50,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:14:50,065 INFO L138 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_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb [2022-11-03 02:14:50,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:50,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:50,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:50,503 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:50,504 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:50,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/floats-cdfpl/sine_4.i [2022-11-03 02:14:50,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/d9e7f4ec0/fcc5d1624e5f42499a805ececc1a6e44/FLAG63d5eec17 [2022-11-03 02:14:51,175 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:51,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/sv-benchmarks/c/floats-cdfpl/sine_4.i [2022-11-03 02:14:51,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/d9e7f4ec0/fcc5d1624e5f42499a805ececc1a6e44/FLAG63d5eec17 [2022-11-03 02:14:51,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/data/d9e7f4ec0/fcc5d1624e5f42499a805ececc1a6e44 [2022-11-03 02:14:51,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:51,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:51,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:51,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:51,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:51,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ed7e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51, skipping insertion in model container [2022-11-03 02:14:51,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:51,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:51,734 WARN L230 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_81f23466-65c9-4514-bd95-b41ce7375359/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2022-11-03 02:14:51,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:51,753 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:14:51,820 WARN L230 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_81f23466-65c9-4514-bd95-b41ce7375359/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2022-11-03 02:14:51,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:51,846 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:14:51,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51 WrapperNode [2022-11-03 02:14:51,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:51,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:51,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:14:51,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:14:51,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,885 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-11-03 02:14:51,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:51,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:14:51,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:14:51,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:14:51,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,931 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:14:51,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:14:51,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:14:51,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:14:51,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (1/1) ... [2022-11-03 02:14:51,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:51,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:51,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:14:52,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:14:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:14:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:14:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:14:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:14:52,109 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:14:52,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:14:54,597 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:14:54,604 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:14:54,604 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:14:54,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:54 BoogieIcfgContainer [2022-11-03 02:14:54,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:14:54,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:14:54,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:14:54,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:14:54,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:51" (1/3) ... [2022-11-03 02:14:54,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57a594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:54, skipping insertion in model container [2022-11-03 02:14:54,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:51" (2/3) ... [2022-11-03 02:14:54,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57a594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:54, skipping insertion in model container [2022-11-03 02:14:54,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:54" (3/3) ... [2022-11-03 02:14:54,617 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_4.i [2022-11-03 02:14:54,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:14:54,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:14:54,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:14:54,711 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=LoopsAndPotentialCycles, 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;@48db567a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:14:54,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:14:54,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:14:54,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:14:54,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:54,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:14:54,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-03 02:14:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:14:54,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939398048] [2022-11-03 02:14:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:54,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:14:54,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:14:54,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:14:54,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:14:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:55,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 02:14:55,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:14:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:14:55,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:14:55,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:14:55,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939398048] [2022-11-03 02:14:55,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939398048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:55,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:14:55,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:14:55,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704440070] [2022-11-03 02:14:55,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:55,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:14:55,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:14:55,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:14:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:14:55,485 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:14:55,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:55,504 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-03 02:14:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:14:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:14:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:55,523 INFO L225 Difference]: With dead ends: 19 [2022-11-03 02:14:55,524 INFO L226 Difference]: Without dead ends: 7 [2022-11-03 02:14:55,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:14:55,538 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:55,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:14:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-03 02:14:55,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-03 02:14:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:14:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-11-03 02:14:55,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-11-03 02:14:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:55,582 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-11-03 02:14:55,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:14:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-11-03 02:14:55,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:14:55,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:55,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:14:55,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:14:55,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:14:55,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:55,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:55,801 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-03 02:14:55,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:14:55,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632945726] [2022-11-03 02:14:55,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:55,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:14:55,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:14:55,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:14:55,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f23466-65c9-4514-bd95-b41ce7375359/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process