./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_7.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_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/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_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/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_2a1341cb-135f-4d05-9b0c-9262c2d72024/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 bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 --- 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 03:37:57,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:37:57,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:37:57,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:37:57,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:37:57,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:37:57,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:37:57,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:37:57,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:37:57,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:37:57,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:37:57,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:37:57,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:37:57,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:37:57,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:37:57,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:37:57,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:37:57,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:37:57,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:37:57,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:37:57,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:37:57,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:37:57,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:37:57,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:37:57,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:37:57,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:37:57,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:37:57,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:37:57,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:37:57,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:37:57,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:37:57,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:37:57,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:37:57,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:37:57,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:37:57,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:37:57,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:37:57,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:37:57,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:37:57,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:37:57,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:37:57,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:37:57,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:37:57,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:37:57,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:37:57,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:37:57,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:37:57,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:37:57,289 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:37:57,290 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:37:57,290 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:37:57,290 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:37:57,290 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:37:57,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:37:57,291 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:37:57,291 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:37:57,292 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:37:57,292 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:37:57,292 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:37:57,293 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:37:57,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:37:57,294 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:37:57,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:37:57,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:37:57,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:37:57,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:37:57,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:37:57,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:37:57,296 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:37:57,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:37:57,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:37:57,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:37:57,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:37:57,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:37:57,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:37:57,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:37:57,298 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:37:57,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:37:57,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:37:57,299 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:37:57,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:37:57,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:37:57,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:37:57,300 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_2a1341cb-135f-4d05-9b0c-9262c2d72024/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 [2022-11-03 03:37:57,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:37:57,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:37:57,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:37:57,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:37:57,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:37:57,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/floats-cdfpl/sine_7.i [2022-11-03 03:37:57,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/7a55ff815/e95e0084502549398541b3dbfd597e5a/FLAGf6885427a [2022-11-03 03:37:58,325 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:37:58,326 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/sv-benchmarks/c/floats-cdfpl/sine_7.i [2022-11-03 03:37:58,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/7a55ff815/e95e0084502549398541b3dbfd597e5a/FLAGf6885427a [2022-11-03 03:37:58,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/7a55ff815/e95e0084502549398541b3dbfd597e5a [2022-11-03 03:37:58,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:37:58,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:37:58,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:37:58,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:37:58,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:37:58,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:37:58" (1/1) ... [2022-11-03 03:37:58,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268d0038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:58, skipping insertion in model container [2022-11-03 03:37:58,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:37:58" (1/1) ... [2022-11-03 03:37:58,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:37:58,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:37:58,987 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_2a1341cb-135f-4d05-9b0c-9262c2d72024/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2022-11-03 03:37:58,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:37:59,002 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:37:59,022 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_2a1341cb-135f-4d05-9b0c-9262c2d72024/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2022-11-03 03:37:59,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:37:59,039 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:37:59,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59 WrapperNode [2022-11-03 03:37:59,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:37:59,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:37:59,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:37:59,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:37:59,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,081 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2022-11-03 03:37:59,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:37:59,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:37:59,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:37:59,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:37:59,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:37:59,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:37:59,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:37:59,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:37:59,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (1/1) ... [2022-11-03 03:37:59,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:37:59,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:37:59,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:37:59,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:37:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:37:59,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:37:59,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:37:59,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:37:59,291 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:37:59,294 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:37:59,412 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:37:59,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:37:59,448 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:37:59,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:37:59 BoogieIcfgContainer [2022-11-03 03:37:59,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:37:59,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:37:59,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:37:59,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:37:59,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:37:58" (1/3) ... [2022-11-03 03:37:59,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2800a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:37:59, skipping insertion in model container [2022-11-03 03:37:59,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:59" (2/3) ... [2022-11-03 03:37:59,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2800a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:37:59, skipping insertion in model container [2022-11-03 03:37:59,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:37:59" (3/3) ... [2022-11-03 03:37:59,462 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_7.i [2022-11-03 03:37:59,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:37:59,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:37:59,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:37:59,555 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;@6a9f0902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:37:59,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:37:59,560 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 03:37:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 03:37:59,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:59,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 03:37:59,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:59,576 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2022-11-03 03:37:59,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:59,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016780259] [2022-11-03 03:37:59,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:59,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:37:59,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:37:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:37:59,734 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:37:59,736 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:37:59,738 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:37:59,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:37:59,746 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 03:37:59,752 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:37:59,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:37:59 BoogieIcfgContainer [2022-11-03 03:37:59,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:37:59,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:37:59,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:37:59,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:37:59,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:37:59" (3/4) ... [2022-11-03 03:37:59,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:37:59,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:37:59,790 INFO L158 Benchmark]: Toolchain (without parser) took 1080.51ms. Allocated memory is still 123.7MB. Free memory was 78.7MB in the beginning and 70.1MB in the end (delta: 8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 03:37:59,792 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:37:59,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.95ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 97.0MB in the end (delta: -18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:37:59,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.97ms. Allocated memory is still 123.7MB. Free memory was 97.0MB in the beginning and 95.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:37:59,796 INFO L158 Benchmark]: Boogie Preprocessor took 40.72ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 94.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:37:59,803 INFO L158 Benchmark]: RCFGBuilder took 325.31ms. Allocated memory is still 123.7MB. Free memory was 94.5MB in the beginning and 84.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:37:59,804 INFO L158 Benchmark]: TraceAbstraction took 322.63ms. Allocated memory is still 123.7MB. Free memory was 83.6MB in the beginning and 70.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 03:37:59,807 INFO L158 Benchmark]: Witness Printer took 7.15ms. Allocated memory is still 123.7MB. Free memory was 70.5MB in the beginning and 70.1MB in the end (delta: 466.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:37:59,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.95ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 97.0MB in the end (delta: -18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.97ms. Allocated memory is still 123.7MB. Free memory was 97.0MB in the beginning and 95.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.72ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 94.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.31ms. Allocated memory is still 123.7MB. Free memory was 94.5MB in the beginning and 84.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 322.63ms. Allocated memory is still 123.7MB. Free memory was 83.6MB in the beginning and 70.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.15ms. Allocated memory is still 123.7MB. Free memory was 70.5MB in the beginning and 70.1MB in the end (delta: 466.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 <= 1.5f && result >= -1.5f) 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: 0.2s, 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 03:37:59,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/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_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/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_2a1341cb-135f-4d05-9b0c-9262c2d72024/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 bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 --- 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 03:38:02,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:38:02,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:38:02,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:38:02,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:38:02,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:38:02,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:38:02,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:38:02,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:38:02,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:38:02,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:38:02,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:38:02,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:38:02,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:38:02,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:38:02,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:38:02,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:38:02,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:38:02,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:38:02,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:38:02,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:38:02,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:38:02,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:38:02,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:38:02,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:38:02,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:38:02,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:38:02,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:38:02,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:38:02,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:38:02,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:38:02,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:38:02,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:38:02,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:38:02,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:38:02,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:38:02,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:38:02,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:38:02,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:38:02,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:38:02,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:38:02,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 03:38:02,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:38:02,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:38:02,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:38:02,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:38:02,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:38:02,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:38:02,928 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:38:02,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:38:02,929 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:38:02,929 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:38:02,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:38:02,930 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:38:02,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:38:02,931 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:38:02,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:38:02,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:38:02,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:38:02,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:38:02,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:38:02,933 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:38:02,933 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:38:02,933 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:38:02,933 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:38:02,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:38:02,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:38:02,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:38:02,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:38:02,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:38:02,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:38:02,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:38:02,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:38:02,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:38:02,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:38:02,936 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:38:02,936 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:38:02,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:38:02,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:38:02,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:38:02,937 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_2a1341cb-135f-4d05-9b0c-9262c2d72024/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 [2022-11-03 03:38:03,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:38:03,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:38:03,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:38:03,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:38:03,394 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:38:03,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/floats-cdfpl/sine_7.i [2022-11-03 03:38:03,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/7b3619fe6/d81173bd384c4b93806d714e90e0ce5d/FLAGa9f4ef168 [2022-11-03 03:38:04,072 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:38:04,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/sv-benchmarks/c/floats-cdfpl/sine_7.i [2022-11-03 03:38:04,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/7b3619fe6/d81173bd384c4b93806d714e90e0ce5d/FLAGa9f4ef168 [2022-11-03 03:38:04,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/data/7b3619fe6/d81173bd384c4b93806d714e90e0ce5d [2022-11-03 03:38:04,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:38:04,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:38:04,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:38:04,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:38:04,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:38:04,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8c4a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04, skipping insertion in model container [2022-11-03 03:38:04,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:38:04,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:38:04,697 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_2a1341cb-135f-4d05-9b0c-9262c2d72024/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2022-11-03 03:38:04,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:38:04,730 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:38:04,789 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_2a1341cb-135f-4d05-9b0c-9262c2d72024/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2022-11-03 03:38:04,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:38:04,815 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:38:04,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04 WrapperNode [2022-11-03 03:38:04,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:38:04,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:38:04,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:38:04,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:38:04,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,863 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-11-03 03:38:04,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:38:04,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:38:04,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:38:04,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:38:04,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:38:04,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:38:04,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:38:04,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:38:04,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (1/1) ... [2022-11-03 03:38:04,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:38:04,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:38:04,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:38:05,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:38:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:38:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:38:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:38:05,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:38:05,126 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:38:05,128 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:38:07,624 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:38:07,630 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:38:07,631 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:38:07,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:38:07 BoogieIcfgContainer [2022-11-03 03:38:07,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:38:07,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:38:07,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:38:07,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:38:07,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:38:04" (1/3) ... [2022-11-03 03:38:07,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dedb0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:38:07, skipping insertion in model container [2022-11-03 03:38:07,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:38:04" (2/3) ... [2022-11-03 03:38:07,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dedb0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:38:07, skipping insertion in model container [2022-11-03 03:38:07,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:38:07" (3/3) ... [2022-11-03 03:38:07,644 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_7.i [2022-11-03 03:38:07,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:38:07,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:38:07,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:38:07,735 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;@7feb35da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:38:07,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:38:07,746 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 03:38:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 03:38:07,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:07,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 03:38:07,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:38:07,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:07,762 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-03 03:38:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:38:07,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906912027] [2022-11-03 03:38:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:07,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:38:07,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:38:07,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:38:07,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:38:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:08,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:38:08,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:38:08,777 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 03:38:08,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:38:08,779 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:38:08,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906912027] [2022-11-03 03:38:08,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906912027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:08,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:08,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:38:08,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631927420] [2022-11-03 03:38:08,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:08,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:38:08,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:38:08,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:38:08,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:38:08,841 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 03:38:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:08,858 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-03 03:38:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:38:08,861 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 03:38:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:08,870 INFO L225 Difference]: With dead ends: 19 [2022-11-03 03:38:08,871 INFO L226 Difference]: Without dead ends: 7 [2022-11-03 03:38:08,876 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 03:38:08,881 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 03:38:08,883 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 03:38:08,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-03 03:38:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-03 03:38:08,923 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 03:38:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-11-03 03:38:08,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-11-03 03:38:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:08,926 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-11-03 03:38:08,926 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 03:38:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-11-03 03:38:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 03:38:08,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:08,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 03:38:08,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 03:38:09,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:38:09,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:38:09,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-03 03:38:09,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:38:09,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375159786] [2022-11-03 03:38:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:09,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:38:09,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:38:09,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:38:09,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1341cb-135f-4d05-9b0c-9262c2d72024/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process