./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF --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 931f20aaadf1f22a94d365ccbff31bc47a294b716a2b466ce4fd13d5ed4f85ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:02,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:02,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:02,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:02,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:02,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:02,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:02,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:02,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:02,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:03,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:03,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:03,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:03,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:03,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:03,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:03,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:03,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:03,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:03,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:03,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:03,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:03,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:03,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:03,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:03,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:03,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:03,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:03,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:03,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:03,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:03,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:03,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:03,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:03,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:03,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:03,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:03,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:03,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:03,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:03,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:03,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 02:37:03,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:03,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:03,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:03,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:03,129 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:03,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:03,130 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:03,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:37:03,131 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:03,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:03,140 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:37:03,140 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:37:03,141 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:03,141 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:37:03,142 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:37:03,142 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:37:03,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:03,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:37:03,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:37:03,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:37:03,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:03,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:37:03,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:03,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:37:03,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:03,147 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:37:03,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:37:03,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:03,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:37:03,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:03,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:03,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:03,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:03,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:03,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:37:03,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:37:03,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:37:03,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:37:03,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:03,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:03,154 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 931f20aaadf1f22a94d365ccbff31bc47a294b716a2b466ce4fd13d5ed4f85ab [2021-11-13 02:37:03,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:03,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:03,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:03,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:03,599 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:03,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c [2021-11-13 02:37:03,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/3104d556c/20e1e6ba925e435dbb04d7992ea5bafe/FLAG17cdc1edc [2021-11-13 02:37:04,408 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:04,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c [2021-11-13 02:37:04,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/3104d556c/20e1e6ba925e435dbb04d7992ea5bafe/FLAG17cdc1edc [2021-11-13 02:37:04,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/3104d556c/20e1e6ba925e435dbb04d7992ea5bafe [2021-11-13 02:37:04,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:04,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:04,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:04,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:04,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:04,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:04" (1/1) ... [2021-11-13 02:37:04,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51713cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:04, skipping insertion in model container [2021-11-13 02:37:04,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:04" (1/1) ... [2021-11-13 02:37:04,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:04,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:05,065 WARN L228 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_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c[716,729] [2021-11-13 02:37:05,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:05,202 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:37:05,215 WARN L228 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_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c[716,729] [2021-11-13 02:37:05,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:05,373 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:37:05,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05 WrapperNode [2021-11-13 02:37:05,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:05,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:37:05,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:37:05,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:37:05,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:37:05,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:37:05,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:37:05,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:37:05,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:37:05,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:37:05,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:37:05,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:37:05,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (1/1) ... [2021-11-13 02:37:05,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:05,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:37:05,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:37:05,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:37:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-11-13 02:37:05,694 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-11-13 02:37:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:37:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-11-13 02:37:05,695 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-11-13 02:37:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-11-13 02:37:05,695 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-11-13 02:37:05,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:37:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 02:37:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:37:05,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:37:05,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-13 02:37:06,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:37:06,496 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:37:06,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:06 BoogieIcfgContainer [2021-11-13 02:37:06,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:37:06,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:37:06,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:37:06,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:37:06,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:37:04" (1/3) ... [2021-11-13 02:37:06,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a521df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:06, skipping insertion in model container [2021-11-13 02:37:06,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:05" (2/3) ... [2021-11-13 02:37:06,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a521df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:06, skipping insertion in model container [2021-11-13 02:37:06,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:06" (3/3) ... [2021-11-13 02:37:06,514 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_index-2.c [2021-11-13 02:37:06,520 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:37:06,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:37:06,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:37:06,601 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:37:06,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:37:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-13 02:37:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 02:37:06,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:06,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:06,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION === [SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:37:06,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:06,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2102464725, now seen corresponding path program 1 times [2021-11-13 02:37:06,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:37:06,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242913005] [2021-11-13 02:37:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:06,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:37:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:37:07,102 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 02:37:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 02:37:07,325 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 02:37:07,327 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 02:37:07,329 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 02:37:07,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:37:07,336 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 02:37:07,340 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:37:07,378 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 02:37:07,390 INFO L158 Benchmark]: Toolchain (without parser) took 2663.98ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 64.4MB in the beginning and 89.9MB in the end (delta: -25.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-13 02:37:07,391 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:37:07,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.99ms. Allocated memory is still 96.5MB. Free memory was 64.4MB in the beginning and 60.9MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 02:37:07,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.71ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 56.2MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 02:37:07,395 INFO L158 Benchmark]: Boogie Preprocessor took 98.45ms. Allocated memory is still 96.5MB. Free memory was 56.2MB in the beginning and 52.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:37:07,397 INFO L158 Benchmark]: RCFGBuilder took 924.17ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 52.7MB in the beginning and 88.2MB in the end (delta: -35.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-11-13 02:37:07,398 INFO L158 Benchmark]: TraceAbstraction took 882.94ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 89.9MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:37:07,403 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 96.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.99ms. Allocated memory is still 96.5MB. Free memory was 64.4MB in the beginning and 60.9MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.71ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 56.2MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.45ms. Allocated memory is still 96.5MB. Free memory was 56.2MB in the beginning and 52.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 924.17ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 52.7MB in the beginning and 88.2MB in the end (delta: -35.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 882.94ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 89.9MB in the end (delta: -2.4MB). 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 02:37:07,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF --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 931f20aaadf1f22a94d365ccbff31bc47a294b716a2b466ce4fd13d5ed4f85ab --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:37:10,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:37:10,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:37:10,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:37:10,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:37:10,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:37:10,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:37:10,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:37:10,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:37:10,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:37:10,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:37:10,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:37:10,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:37:10,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:37:10,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:37:10,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:37:10,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:37:10,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:37:10,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:37:10,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:37:10,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:37:10,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:37:10,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:37:10,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:37:10,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:37:10,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:37:10,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:37:10,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:37:10,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:37:10,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:37:10,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:37:10,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:37:10,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:37:10,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:37:10,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:37:10,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:37:10,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:37:10,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:37:10,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:37:10,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:37:10,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:37:10,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 02:37:10,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:37:10,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:37:10,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:37:10,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:37:10,641 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:37:10,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:37:10,641 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:37:10,641 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:37:10,642 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:37:10,643 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:37:10,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:37:10,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:37:10,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:37:10,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:37:10,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:37:10,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:37:10,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:37:10,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:37:10,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:37:10,648 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:37:10,648 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:37:10,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:37:10,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:37:10,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:37:10,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:37:10,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:37:10,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:37:10,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:10,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:37:10,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:37:10,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:37:10,651 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:37:10,651 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:37:10,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:37:10,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:37:10,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:37:10,652 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_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 931f20aaadf1f22a94d365ccbff31bc47a294b716a2b466ce4fd13d5ed4f85ab [2021-11-13 02:37:11,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:37:11,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:37:11,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:37:11,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:37:11,142 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:37:11,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c [2021-11-13 02:37:11,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/1858108f3/060e4f382d074bec9383942aa610d9ea/FLAGc2b09be81 [2021-11-13 02:37:11,990 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:37:11,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c [2021-11-13 02:37:12,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/1858108f3/060e4f382d074bec9383942aa610d9ea/FLAGc2b09be81 [2021-11-13 02:37:12,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/data/1858108f3/060e4f382d074bec9383942aa610d9ea [2021-11-13 02:37:12,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:37:12,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:37:12,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:12,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:37:12,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:37:12,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:12" (1/1) ... [2021-11-13 02:37:12,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fce117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:12, skipping insertion in model container [2021-11-13 02:37:12,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:37:12" (1/1) ... [2021-11-13 02:37:12,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:37:12,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:37:12,506 WARN L228 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_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c[716,729] [2021-11-13 02:37:12,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:12,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:37:12,758 WARN L228 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_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/sv-benchmarks/c/float-benchs/sin_interpolated_index-2.c[716,729] [2021-11-13 02:37:12,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:37:13,003 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:37:13,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13 WrapperNode [2021-11-13 02:37:13,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:37:13,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:37:13,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:37:13,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:37:13,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:37:13,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:37:13,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:37:13,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:37:13,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:37:13,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:37:13,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:37:13,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:37:13,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (1/1) ... [2021-11-13 02:37:13,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:37:13,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:37:13,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:37:13,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:37:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-13 02:37:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-11-13 02:37:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-11-13 02:37:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:37:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-11-13 02:37:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-11-13 02:37:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-11-13 02:37:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-11-13 02:37:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:37:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-13 02:37:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:37:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:37:18,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:37:18,304 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:37:18,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:18 BoogieIcfgContainer [2021-11-13 02:37:18,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:37:18,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:37:18,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:37:18,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:37:18,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:37:12" (1/3) ... [2021-11-13 02:37:18,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d46ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:18, skipping insertion in model container [2021-11-13 02:37:18,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:37:13" (2/3) ... [2021-11-13 02:37:18,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d46ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:37:18, skipping insertion in model container [2021-11-13 02:37:18,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:37:18" (3/3) ... [2021-11-13 02:37:18,319 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_index-2.c [2021-11-13 02:37:18,325 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:37:18,326 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:37:18,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:37:18,395 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:37:18,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:37:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-13 02:37:18,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 02:37:18,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:18,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:18,423 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION === [SIN_0_180Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:37:18,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1232297392, now seen corresponding path program 1 times [2021-11-13 02:37:18,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:18,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304816333] [2021-11-13 02:37:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:37:18,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:18,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:18,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:18,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d98ab72-ef9e-4f6a-9456-c5cffa6717d0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process