./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f --- 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 [2022-11-02 20:56:18,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:56:18,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:56:18,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:56:18,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:56:18,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:56:18,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:56:18,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:56:18,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:56:18,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:56:18,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:56:18,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:56:18,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:56:18,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:56:18,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:56:18,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:56:18,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:56:18,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:56:18,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:56:18,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:56:18,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:56:18,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:56:18,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:56:18,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:56:18,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:56:18,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:56:18,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:56:18,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:56:18,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:56:18,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:56:18,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:56:18,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:56:18,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:56:18,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:56:18,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:56:18,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:56:18,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:56:18,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:56:18,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:56:18,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:56:18,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:56:18,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:56:18,424 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:56:18,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:56:18,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:56:18,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:56:18,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:56:18,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:56:18,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:56:18,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:56:18,431 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:56:18,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:56:18,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:56:18,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:56:18,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:56:18,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:56:18,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:56:18,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:56:18,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:56:18,435 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:56:18,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:56:18,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:56:18,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:56:18,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:56:18,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:56:18,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:56:18,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:18,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:56:18,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:56:18,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:56:18,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:56:18,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:56:18,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:56:18,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:56:18,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:56:18,447 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_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f [2022-11-02 20:56:18,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:56:18,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:56:18,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:56:18,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:56:18,753 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:56:18,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-11-02 20:56:18,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/04a99bb65/516612dedb844cb0908c90b7da189ce5/FLAGb1879d690 [2022-11-02 20:56:19,278 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:56:19,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-11-02 20:56:19,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/04a99bb65/516612dedb844cb0908c90b7da189ce5/FLAGb1879d690 [2022-11-02 20:56:19,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/04a99bb65/516612dedb844cb0908c90b7da189ce5 [2022-11-02 20:56:19,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:56:19,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:56:19,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:19,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:56:19,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:56:19,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:19" (1/1) ... [2022-11-02 20:56:19,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d076f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:19, skipping insertion in model container [2022-11-02 20:56:19,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:19" (1/1) ... [2022-11-02 20:56:19,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:56:19,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:56:19,962 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_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2022-11-02 20:56:19,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:19,974 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:56:20,027 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_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2022-11-02 20:56:20,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:20,042 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:56:20,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20 WrapperNode [2022-11-02 20:56:20,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:20,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:20,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:56:20,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:56:20,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,112 INFO L138 Inliner]: procedures = 16, calls = 70, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 199 [2022-11-02 20:56:20,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:20,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:56:20,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:56:20,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:56:20,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:56:20,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:56:20,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:56:20,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:56:20,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (1/1) ... [2022-11-02 20:56:20,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:20,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:20,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:56:20,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:56:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-11-02 20:56:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-11-02 20:56:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:56:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:56:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:56:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-02 20:56:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:56:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-02 20:56:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:56:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:56:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:56:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:56:20,415 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:56:20,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:56:20,778 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:56:20,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:56:20,785 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-02 20:56:20,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:20 BoogieIcfgContainer [2022-11-02 20:56:20,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:56:20,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:56:20,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:56:20,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:56:20,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:56:19" (1/3) ... [2022-11-02 20:56:20,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1502a3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:20, skipping insertion in model container [2022-11-02 20:56:20,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:20" (2/3) ... [2022-11-02 20:56:20,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1502a3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:20, skipping insertion in model container [2022-11-02 20:56:20,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:20" (3/3) ... [2022-11-02 20:56:20,797 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2022-11-02 20:56:20,816 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:56:20,816 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:56:20,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:56:20,929 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=PETRI_NET, 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;@1965c9e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:56:20,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:56:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:20,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:56:20,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:20,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:20,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:20,960 INFO L85 PathProgramCache]: Analyzing trace with hash -542918343, now seen corresponding path program 1 times [2022-11-02 20:56:20,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:20,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223186501] [2022-11-02 20:56:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:20,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:21,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:56:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:21,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:21,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223186501] [2022-11-02 20:56:21,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223186501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:21,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:21,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:21,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979660862] [2022-11-02 20:56:21,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:21,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:56:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:21,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:56:21,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:21,276 INFO L87 Difference]: Start difference. First operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:21,320 INFO L93 Difference]: Finished difference Result 96 states and 150 transitions. [2022-11-02 20:56:21,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:56:21,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-02 20:56:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:21,337 INFO L225 Difference]: With dead ends: 96 [2022-11-02 20:56:21,337 INFO L226 Difference]: Without dead ends: 46 [2022-11-02 20:56:21,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:21,347 INFO L413 NwaCegarLoop]: 55 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, 55 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 [2022-11-02 20:56:21,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-02 20:56:21,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-02 20:56:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-11-02 20:56:21,398 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-11-02 20:56:21,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:21,399 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-11-02 20:56:21,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-11-02 20:56:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:56:21,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:21,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:21,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:56:21,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:21,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:21,404 INFO L85 PathProgramCache]: Analyzing trace with hash 634117776, now seen corresponding path program 1 times [2022-11-02 20:56:21,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:21,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886904212] [2022-11-02 20:56:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:21,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:56:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:21,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:21,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886904212] [2022-11-02 20:56:21,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886904212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:21,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:21,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:56:21,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253967043] [2022-11-02 20:56:21,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:21,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:21,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:21,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:21,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:21,567 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:21,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:21,604 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-02 20:56:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:21,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-02 20:56:21,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:21,607 INFO L225 Difference]: With dead ends: 49 [2022-11-02 20:56:21,607 INFO L226 Difference]: Without dead ends: 46 [2022-11-02 20:56:21,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:21,609 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:21,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-02 20:56:21,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-02 20:56:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-02 20:56:21,619 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 19 [2022-11-02 20:56:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:21,621 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-02 20:56:21,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-02 20:56:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:56:21,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:21,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:21,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:56:21,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:21,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:21,625 INFO L85 PathProgramCache]: Analyzing trace with hash -601800040, now seen corresponding path program 1 times [2022-11-02 20:56:21,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:21,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080244518] [2022-11-02 20:56:21,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:21,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:56:21,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:56:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:56:21,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:56:21,770 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:56:21,772 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:56:21,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:56:21,778 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 20:56:21,783 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:56:21,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:56:21 BoogieIcfgContainer [2022-11-02 20:56:21,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:56:21,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:56:21,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:56:21,822 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:56:21,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:20" (3/4) ... [2022-11-02 20:56:21,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:56:21,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:56:21,828 INFO L158 Benchmark]: Toolchain (without parser) took 2139.16ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 60.4MB in the beginning and 62.7MB in the end (delta: -2.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-02 20:56:21,829 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 69.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:56:21,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.56ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 60.1MB in the beginning and 98.1MB in the end (delta: -38.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:56:21,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.91ms. Allocated memory is still 125.8MB. Free memory was 98.1MB in the beginning and 95.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:56:21,831 INFO L158 Benchmark]: Boogie Preprocessor took 96.08ms. Allocated memory is still 125.8MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:21,832 INFO L158 Benchmark]: RCFGBuilder took 578.09ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 69.3MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:21,832 INFO L158 Benchmark]: TraceAbstraction took 1031.82ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 62.7MB in the end (delta: 6.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-02 20:56:21,833 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 125.8MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:56:21,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 69.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.56ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 60.1MB in the beginning and 98.1MB in the end (delta: -38.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.91ms. Allocated memory is still 125.8MB. Free memory was 98.1MB in the beginning and 95.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.08ms. Allocated memory is still 125.8MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.09ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 69.3MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1031.82ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 62.7MB in the end (delta: 6.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 125.8MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 124]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 118, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L120] CALL, EXPR modf_double(x, &iptr) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [\old(x)=4294967312, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967312] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=4294967312, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967312] [L31] COND TRUE j0 < 20 VAL [\old(x)=4294967312, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967312] [L32] COND TRUE j0 < 0 VAL [\old(x)=4294967312, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967312] [L34] ieee_double_shape_type iw_u; [L35] iw_u.parts.msw = (i0 & 0x80000000) [L36] iw_u.parts.lsw = (0) [L37] EXPR iw_u.value [L37] (*iptr) = iw_u.value [L39] return x; VAL [\old(x)=4294967312, \result=4294967312, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967312] [L120] RET, EXPR modf_double(x, &iptr) [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) VAL [\read(iptr)=4294967310, iptr={6:0}, one_modf=1, res=4294967312, x=4294967312] [L123] CALL, EXPR isnan_double(iptr) VAL [\old(x)=4294967310, one_modf=1] [L17] return x != x; VAL [\old(x)=4294967310, \result=1, one_modf=1, x=4294967310] [L123] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=4294967310, iptr={6:0}, isnan_double(iptr)=1, one_modf=1, res=4294967312, x=4294967312] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=4294967310, iptr={6:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=4294967312, x=4294967312] [L123] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967312, one_modf=1] [L17] return x != x; VAL [\old(x)=4294967312, \result=0, one_modf=1, x=4294967312] [L123] RET, EXPR isnan_double(res) VAL [\read(iptr)=4294967310, iptr={6:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=4294967312, x=4294967312] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=4294967310, iptr={6:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=4294967312, x=4294967312] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L124] reach_error() VAL [iptr={6:0}, one_modf=1, res=4294967312, x=4294967312] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 107 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-11-02 20:56:21,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f --- 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 [2022-11-02 20:56:24,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:56:24,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:56:24,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:56:24,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:56:24,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:56:24,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:56:24,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:56:24,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:56:24,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:56:24,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:56:24,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:56:24,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:56:24,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:56:24,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:56:24,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:56:24,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:56:24,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:56:24,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:56:24,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:56:24,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:56:24,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:56:24,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:56:24,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:56:24,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:56:24,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:56:24,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:56:24,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:56:24,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:56:24,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:56:24,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:56:24,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:56:24,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:56:24,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:56:24,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:56:24,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:56:24,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:56:24,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:56:24,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:56:24,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:56:24,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:56:24,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:56:24,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:56:24,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:56:24,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:56:24,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:56:24,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:56:24,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:56:24,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:56:24,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:56:24,721 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:56:24,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:56:24,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:56:24,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:56:24,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:56:24,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:56:24,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:56:24,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:56:24,723 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:56:24,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:56:24,724 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:56:24,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:56:24,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:56:24,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:56:24,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:56:24,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:56:24,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:56:24,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:56:24,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:24,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:56:24,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:56:24,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:56:24,727 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:56:24,727 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:56:24,727 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:56:24,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:56:24,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:56:24,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:56:24,728 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_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f [2022-11-02 20:56:25,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:56:25,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:56:25,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:56:25,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:56:25,156 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:56:25,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-11-02 20:56:25,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/615554739/0bc5b048c8524d2c87600e864163436c/FLAG3601ec07b [2022-11-02 20:56:25,830 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:56:25,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-11-02 20:56:25,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/615554739/0bc5b048c8524d2c87600e864163436c/FLAG3601ec07b [2022-11-02 20:56:26,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/data/615554739/0bc5b048c8524d2c87600e864163436c [2022-11-02 20:56:26,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:56:26,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:56:26,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:26,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:56:26,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:56:26,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b49166b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26, skipping insertion in model container [2022-11-02 20:56:26,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:56:26,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:56:26,441 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_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2022-11-02 20:56:26,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:26,505 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:56:26,553 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_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2022-11-02 20:56:26,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:26,572 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:56:26,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26 WrapperNode [2022-11-02 20:56:26,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:26,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:26,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:56:26,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:56:26,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,620 INFO L138 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2022-11-02 20:56:26,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:26,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:56:26,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:56:26,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:56:26,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,658 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:56:26,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:56:26,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:56:26,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:56:26,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (1/1) ... [2022-11-02 20:56:26,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:26,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:26,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:56:26,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:56:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-11-02 20:56:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-11-02 20:56:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:56:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-02 20:56:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-02 20:56:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:56:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:56:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-02 20:56:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:56:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:56:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-02 20:56:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:56:26,862 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:56:26,864 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:56:27,878 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:56:27,885 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:56:27,885 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-02 20:56:27,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:27 BoogieIcfgContainer [2022-11-02 20:56:27,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:56:27,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:56:27,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:56:27,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:56:27,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:56:26" (1/3) ... [2022-11-02 20:56:27,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c35ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:27, skipping insertion in model container [2022-11-02 20:56:27,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:26" (2/3) ... [2022-11-02 20:56:27,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c35ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:27, skipping insertion in model container [2022-11-02 20:56:27,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:27" (3/3) ... [2022-11-02 20:56:27,902 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2022-11-02 20:56:27,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:56:27,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:56:28,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:56:28,030 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=PETRI_NET, 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;@1b72cc23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:56:28,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:56:28,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:56:28,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:28,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:28,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:28,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:28,062 INFO L85 PathProgramCache]: Analyzing trace with hash -542918343, now seen corresponding path program 1 times [2022-11-02 20:56:28,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:28,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747103353] [2022-11-02 20:56:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:28,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:28,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:28,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:28,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:56:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:28,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:56:28,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:28,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:28,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:56:28,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747103353] [2022-11-02 20:56:28,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747103353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:28,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:28,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347935224] [2022-11-02 20:56:28,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:28,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:56:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:56:28,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:56:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:28,394 INFO L87 Difference]: Start difference. First operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:28,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:28,438 INFO L93 Difference]: Finished difference Result 96 states and 150 transitions. [2022-11-02 20:56:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:56:28,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-02 20:56:28,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:28,448 INFO L225 Difference]: With dead ends: 96 [2022-11-02 20:56:28,449 INFO L226 Difference]: Without dead ends: 46 [2022-11-02 20:56:28,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:28,456 INFO L413 NwaCegarLoop]: 55 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, 55 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 [2022-11-02 20:56:28,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-02 20:56:28,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-02 20:56:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-11-02 20:56:28,516 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-11-02 20:56:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:28,518 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-11-02 20:56:28,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:28,519 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-11-02 20:56:28,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:56:28,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:28,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:28,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:28,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:56:28,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:28,738 INFO L85 PathProgramCache]: Analyzing trace with hash 634117776, now seen corresponding path program 1 times [2022-11-02 20:56:28,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:28,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830494279] [2022-11-02 20:56:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:28,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:28,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:28,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:28,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:56:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:28,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:56:28,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:29,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:29,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:56:29,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830494279] [2022-11-02 20:56:29,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830494279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:29,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:29,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:56:29,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169047431] [2022-11-02 20:56:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:29,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:56:29,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:56:29,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:56:29,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:56:29,346 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:29,358 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-11-02 20:56:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:56:29,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-02 20:56:29,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:29,360 INFO L225 Difference]: With dead ends: 58 [2022-11-02 20:56:29,360 INFO L226 Difference]: Without dead ends: 33 [2022-11-02 20:56:29,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:56:29,362 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:29,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-02 20:56:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-02 20:56:29,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-02 20:56:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-02 20:56:29,370 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2022-11-02 20:56:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:29,371 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-02 20:56:29,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-02 20:56:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:56:29,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:29,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:29,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:29,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:56:29,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:29,575 INFO L85 PathProgramCache]: Analyzing trace with hash -992387949, now seen corresponding path program 1 times [2022-11-02 20:56:29,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:29,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205280661] [2022-11-02 20:56:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:29,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:29,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:29,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:29,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:56:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:29,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:56:29,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:29,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:29,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:29,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:56:29,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205280661] [2022-11-02 20:56:29,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205280661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:29,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:29,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:56:29,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57212947] [2022-11-02 20:56:29,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:29,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:56:29,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:56:29,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:56:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:29,973 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:30,114 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-11-02 20:56:30,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:56:30,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-02 20:56:30,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:30,117 INFO L225 Difference]: With dead ends: 36 [2022-11-02 20:56:30,117 INFO L226 Difference]: Without dead ends: 33 [2022-11-02 20:56:30,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:56:30,119 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:30,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:56:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-02 20:56:30,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-02 20:56:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-02 20:56:30,131 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 20 [2022-11-02 20:56:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:30,134 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-02 20:56:30,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:56:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-02 20:56:30,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 20:56:30,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:30,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:30,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:30,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:56:30,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1527705995, now seen corresponding path program 1 times [2022-11-02 20:56:30,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:30,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308614291] [2022-11-02 20:56:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:30,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:30,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:30,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:56:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:30,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:56:30,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:30,928 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:56:30,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 21 [2022-11-02 20:56:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:56:31,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:31,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:56:31,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308614291] [2022-11-02 20:56:31,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308614291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:31,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:31,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:56:31,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052562938] [2022-11-02 20:56:31,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:31,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:56:31,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:56:31,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:56:31,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:56:31,419 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:56:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:32,478 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2022-11-02 20:56:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:56:32,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-02 20:56:32,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:32,480 INFO L225 Difference]: With dead ends: 42 [2022-11-02 20:56:32,480 INFO L226 Difference]: Without dead ends: 30 [2022-11-02 20:56:32,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:56:32,482 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:32,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 144 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 33 Unchecked, 0.9s Time] [2022-11-02 20:56:32,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-02 20:56:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-02 20:56:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 20:56:32,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-11-02 20:56:32,500 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 25 [2022-11-02 20:56:32,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:32,501 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-11-02 20:56:32,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:56:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-11-02 20:56:32,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-02 20:56:32,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:32,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:32,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:32,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:56:32,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:32,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1271287075, now seen corresponding path program 1 times [2022-11-02 20:56:32,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:32,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803611307] [2022-11-02 20:56:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:32,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:32,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:32,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:32,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:56:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:56:33,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:56:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:56:33,943 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-02 20:56:33,943 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:56:33,945 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:56:33,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:34,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:56:34,152 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-02 20:56:34,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:56:34,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:56:34 BoogieIcfgContainer [2022-11-02 20:56:34,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:56:34,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:56:34,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:56:34,202 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:56:34,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:27" (3/4) ... [2022-11-02 20:56:34,205 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-02 20:56:34,277 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:56:34,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:56:34,278 INFO L158 Benchmark]: Toolchain (without parser) took 8106.68ms. Allocated memory was 60.8MB in the beginning and 90.2MB in the end (delta: 29.4MB). Free memory was 40.6MB in the beginning and 41.0MB in the end (delta: -361.6kB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,278 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:56:34,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.74ms. Allocated memory was 60.8MB in the beginning and 90.2MB in the end (delta: 29.4MB). Free memory was 40.4MB in the beginning and 71.9MB in the end (delta: -31.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.15ms. Allocated memory is still 90.2MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,280 INFO L158 Benchmark]: Boogie Preprocessor took 42.58ms. Allocated memory is still 90.2MB. Free memory was 69.8MB in the beginning and 67.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,280 INFO L158 Benchmark]: RCFGBuilder took 1224.10ms. Allocated memory is still 90.2MB. Free memory was 67.5MB in the beginning and 71.6MB in the end (delta: -4.2MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,280 INFO L158 Benchmark]: TraceAbstraction took 6310.03ms. Allocated memory is still 90.2MB. Free memory was 70.9MB in the beginning and 44.2MB in the end (delta: 26.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,281 INFO L158 Benchmark]: Witness Printer took 75.59ms. Allocated memory is still 90.2MB. Free memory was 43.6MB in the beginning and 41.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:34,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 60.8MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.74ms. Allocated memory was 60.8MB in the beginning and 90.2MB in the end (delta: 29.4MB). Free memory was 40.4MB in the beginning and 71.9MB in the end (delta: -31.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.15ms. Allocated memory is still 90.2MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.58ms. Allocated memory is still 90.2MB. Free memory was 69.8MB in the beginning and 67.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1224.10ms. Allocated memory is still 90.2MB. Free memory was 67.5MB in the beginning and 71.6MB in the end (delta: -4.2MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6310.03ms. Allocated memory is still 90.2MB. Free memory was 70.9MB in the beginning and 44.2MB in the end (delta: 26.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Witness Printer took 75.59ms. Allocated memory is still 90.2MB. Free memory was 43.6MB in the beginning and 41.0MB in the end (delta: 2.7MB). 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 - CounterExampleResult [Line: 124]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1.0] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L120] CALL, EXPR modf_double(x, &iptr) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [\old(x)=NaN, iptr={-2147483645:0}, iptr={-2147483645:0}, one_modf=1.0, x=NaN] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=NaN, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=NaN] [L31] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=NaN] [L67] COND TRUE j0 > 51 [L68] __uint32_t high; [L69] *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=NaN] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (high) = gh_u.parts.msw [L76] ieee_double_shape_type iw_u; [L77] iw_u.parts.msw = (high & 0x80000000) [L78] iw_u.parts.lsw = (0) [L79] EXPR iw_u.value [L79] (x) = iw_u.value [L81] return x; VAL [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=0.0] [L120] RET, EXPR modf_double(x, &iptr) [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, one_modf=1.0, res=0.0, x=NaN] [L123] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L17] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L123] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L123] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L17] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L123] RET, EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L124] reach_error() VAL [iptr={-2147483645:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 381 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 50 IncrementalHoareTripleChecker+Unchecked, 232 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 149 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 9 QuantifiedInterpolants, 362 SizeOfPredicates, 18 NumberOfNonLiveVariables, 308 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 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 proved your program to be incorrect! [2022-11-02 20:56:34,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5283d25-6fc8-4a83-b9a1-91fb636a6c28/bin/uautomizer-Dbtcem3rbc/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE