./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU --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 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:47:30,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:47:30,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:47:30,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:47:30,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:47:30,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:47:30,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:47:30,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:47:30,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:47:30,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:47:30,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:47:30,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:47:30,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:47:30,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:47:30,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:47:30,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:47:30,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:47:30,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:47:30,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:47:30,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:47:30,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:47:30,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:47:30,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:47:30,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:47:30,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:47:30,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:47:30,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:47:30,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:47:30,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:47:30,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:47:30,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:47:30,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:47:30,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:47:30,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:47:30,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:47:30,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:47:30,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:47:30,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:47:30,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:47:30,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:47:30,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:47:30,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:47:30,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:47:30,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:47:30,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:47:30,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:47:30,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:47:30,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:47:30,348 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:47:30,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:47:30,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:47:30,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:47:30,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:47:30,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:47:30,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:47:30,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:47:30,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:47:30,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:47:30,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:47:30,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:47:30,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:47:30,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:47:30,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:47:30,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:47:30,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:47:30,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:47:30,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:47:30,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:47:30,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:47:30,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:47:30,354 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:47:30,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:47:30,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:47:30,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:47:30,357 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_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2021-11-02 22:47:30,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:47:30,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:47:30,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:47:30,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:47:30,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:47:30,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-11-02 22:47:30,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/7abc405f1/6b71435773ab4b90b10da88f98485bfd/FLAG3933481a0 [2021-11-02 22:47:31,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:47:31,214 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-11-02 22:47:31,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/7abc405f1/6b71435773ab4b90b10da88f98485bfd/FLAG3933481a0 [2021-11-02 22:47:31,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/7abc405f1/6b71435773ab4b90b10da88f98485bfd [2021-11-02 22:47:31,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:47:31,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:47:31,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:47:31,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:47:31,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:47:31,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:31" (1/1) ... [2021-11-02 22:47:31,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9317e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:31, skipping insertion in model container [2021-11-02 22:47:31,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:31" (1/1) ... [2021-11-02 22:47:31,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:47:31,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:47:31,936 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-11-02 22:47:31,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:47:31,948 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:47:31,997 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-11-02 22:47:31,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:47:32,014 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:47:32,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32 WrapperNode [2021-11-02 22:47:32,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:47:32,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:47:32,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:47:32,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:47:32,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:47:32,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:47:32,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:47:32,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:47:32,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:47:32,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:47:32,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:47:32,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:47:32,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (1/1) ... [2021-11-02 22:47:32,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:47:32,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:47:32,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:47:32,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:47:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:47:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:47:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:47:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-02 22:47:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-02 22:47:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:47:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:47:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:47:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-02 22:47:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:47:32,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:47:32,908 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-11-02 22:47:32,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:32 BoogieIcfgContainer [2021-11-02 22:47:32,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:47:32,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:47:32,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:47:32,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:47:32,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:47:31" (1/3) ... [2021-11-02 22:47:32,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce63f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:47:32, skipping insertion in model container [2021-11-02 22:47:32,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:32" (2/3) ... [2021-11-02 22:47:32,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce63f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:47:32, skipping insertion in model container [2021-11-02 22:47:32,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:32" (3/3) ... [2021-11-02 22:47:32,924 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2021-11-02 22:47:32,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:47:32,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:47:32,999 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:47:33,010 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:47:33,011 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 22:47:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-02 22:47:33,049 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:47:33,050 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:47:33,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:47:33,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:47:33,058 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-11-02 22:47:33,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:47:33,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544771237] [2021-11-02 22:47:33,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:47:33,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:47:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:47:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:47:33,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:47:33,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544771237] [2021-11-02 22:47:33,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544771237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:47:33,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:47:33,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:47:33,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887672857] [2021-11-02 22:47:33,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:47:33,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:47:33,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:47:33,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:47:33,260 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:47:33,283 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-11-02 22:47:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:47:33,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-02 22:47:33,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:47:33,294 INFO L225 Difference]: With dead ends: 108 [2021-11-02 22:47:33,295 INFO L226 Difference]: Without dead ends: 52 [2021-11-02 22:47:33,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:47:33,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-02 22:47:33,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-02 22:47:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-11-02 22:47:33,357 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-11-02 22:47:33,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:47:33,358 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-11-02 22:47:33,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:33,358 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-11-02 22:47:33,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 22:47:33,359 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:47:33,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:47:33,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:47:33,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:47:33,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:47:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-11-02 22:47:33,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:47:33,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216518781] [2021-11-02 22:47:33,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:47:33,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:47:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:47:33,445 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:47:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:47:33,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:47:33,584 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-02 22:47:33,586 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:47:33,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:47:33,590 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-02 22:47:33,592 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:47:33,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:47:33 BoogieIcfgContainer [2021-11-02 22:47:33,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:47:33,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:47:33,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:47:33,624 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:47:33,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:32" (3/4) ... [2021-11-02 22:47:33,628 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 22:47:33,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:47:33,630 INFO L168 Benchmark]: Toolchain (without parser) took 2019.87 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 51.1 MB in the beginning and 73.4 MB in the end (delta: -22.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:47:33,631 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:47:33,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.47 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.8 MB in the beginning and 82.9 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:47:33,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.00 ms. Allocated memory is still 111.1 MB. Free memory was 82.9 MB in the beginning and 80.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:47:33,633 INFO L168 Benchmark]: Boogie Preprocessor took 71.34 ms. Allocated memory is still 111.1 MB. Free memory was 80.4 MB in the beginning and 78.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:47:33,634 INFO L168 Benchmark]: RCFGBuilder took 761.02 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 60.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-02 22:47:33,634 INFO L168 Benchmark]: TraceAbstraction took 710.61 ms. Allocated memory is still 111.1 MB. Free memory was 60.1 MB in the beginning and 73.9 MB in the end (delta: -13.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:47:33,635 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 73.4 MB in the end (delta: 553.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:47:33,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 401.47 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.8 MB in the beginning and 82.9 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.00 ms. Allocated memory is still 111.1 MB. Free memory was 82.9 MB in the beginning and 80.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.34 ms. Allocated memory is still 111.1 MB. Free memory was 80.4 MB in the beginning and 78.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 761.02 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 60.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 710.61 ms. Allocated memory is still 111.1 MB. Free memory was 60.1 MB in the beginning and 73.9 MB in the end (delta: -13.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 73.4 MB in the end (delta: 553.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={6:0}] [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={6:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={6:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={6:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={6:0}] [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [one_fmod=1, Zero_fmod={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-11-02 22:47:33,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU --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 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:47:36,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:47:36,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:47:36,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:47:36,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:47:36,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:47:36,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:47:36,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:47:36,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:47:36,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:47:36,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:47:36,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:47:36,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:47:36,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:47:36,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:47:36,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:47:36,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:47:36,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:47:36,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:47:36,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:47:36,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:47:36,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:47:36,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:47:36,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:47:36,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:47:36,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:47:36,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:47:36,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:47:36,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:47:36,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:47:36,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:47:36,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:47:36,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:47:36,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:47:36,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:47:36,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:47:36,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:47:36,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:47:36,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:47:36,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:47:36,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:47:36,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-02 22:47:36,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:47:36,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:47:36,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:47:36,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:47:36,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:47:36,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:47:36,636 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:47:36,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:47:36,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:47:36,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:47:36,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:47:36,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:47:36,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:47:36,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:47:36,638 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-02 22:47:36,638 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-02 22:47:36,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:47:36,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:47:36,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:47:36,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:47:36,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:47:36,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:47:36,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:47:36,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:47:36,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:47:36,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:47:36,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:47:36,641 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-02 22:47:36,642 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-02 22:47:36,642 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:47:36,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:47:36,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:47:36,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:47:36,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-02 22:47:36,643 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_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2021-11-02 22:47:37,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:47:37,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:47:37,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:47:37,046 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:47:37,047 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:47:37,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-11-02 22:47:37,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/784197155/793912b286ea44a1ab0fab25b713a96d/FLAG4c6105f82 [2021-11-02 22:47:37,733 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:47:37,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-11-02 22:47:37,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/784197155/793912b286ea44a1ab0fab25b713a96d/FLAG4c6105f82 [2021-11-02 22:47:38,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/data/784197155/793912b286ea44a1ab0fab25b713a96d [2021-11-02 22:47:38,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:47:38,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:47:38,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:47:38,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:47:38,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:47:38,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e07459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38, skipping insertion in model container [2021-11-02 22:47:38,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:47:38,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:47:38,330 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-11-02 22:47:38,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:47:38,345 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:47:38,440 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-11-02 22:47:38,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:47:38,460 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:47:38,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38 WrapperNode [2021-11-02 22:47:38,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:47:38,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:47:38,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:47:38,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:47:38,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:47:38,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:47:38,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:47:38,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:47:38,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:47:38,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:47:38,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:47:38,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:47:38,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (1/1) ... [2021-11-02 22:47:38,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:47:38,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:47:38,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:47:38,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:47:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-02 22:47:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-02 22:47:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-02 22:47:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:47:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-02 22:47:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-02 22:47:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:47:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:47:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-02 22:47:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:47:44,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:47:44,267 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-11-02 22:47:44,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:44 BoogieIcfgContainer [2021-11-02 22:47:44,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:47:44,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:47:44,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:47:44,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:47:44,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:47:38" (1/3) ... [2021-11-02 22:47:44,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1861ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:47:44, skipping insertion in model container [2021-11-02 22:47:44,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:47:38" (2/3) ... [2021-11-02 22:47:44,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1861ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:47:44, skipping insertion in model container [2021-11-02 22:47:44,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:44" (3/3) ... [2021-11-02 22:47:44,283 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2021-11-02 22:47:44,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:47:44,294 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:47:44,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:47:44,363 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:47:44,364 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 22:47:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-02 22:47:44,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:47:44,390 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:47:44,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:47:44,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:47:44,398 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-11-02 22:47:44,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:47:44,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786656783] [2021-11-02 22:47:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:47:44,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:47:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:47:44,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:47:44,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-02 22:47:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:47:45,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-02 22:47:45,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:47:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:47:45,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:47:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:47:46,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:47:46,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786656783] [2021-11-02 22:47:46,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786656783] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:47:46,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:47:46,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 22:47:46,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777968503] [2021-11-02 22:47:46,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:47:46,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:47:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:47:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:47:46,050 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:46,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:47:46,074 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-11-02 22:47:46,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:47:46,075 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-02 22:47:46,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:47:46,086 INFO L225 Difference]: With dead ends: 108 [2021-11-02 22:47:46,086 INFO L226 Difference]: Without dead ends: 52 [2021-11-02 22:47:46,089 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:47:46,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-02 22:47:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-02 22:47:46,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:46,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-11-02 22:47:46,123 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-11-02 22:47:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:47:46,124 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-11-02 22:47:46,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:47:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-11-02 22:47:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 22:47:46,126 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:47:46,126 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:47:46,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:47:46,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:47:46,334 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:47:46,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:47:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-11-02 22:47:46,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:47:46,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95420942] [2021-11-02 22:47:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:47:46,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:47:46,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:47:46,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:47:46,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-02 22:47:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:47:47,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 22:47:47,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:48:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:48:04,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:48:19,021 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-11-02 22:48:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:48:45,223 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:48:45,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95420942] [2021-11-02 22:48:45,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95420942] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:48:45,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:48:45,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-02 22:48:45,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394680635] [2021-11-02 22:48:45,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:48:45,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:48:45,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:48:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2021-11-02 22:48:45,228 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:48:49,321 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~x (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (_ +zero 11 53))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-02 22:49:15,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:49:15,121 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2021-11-02 22:49:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:49:15,157 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-02 22:49:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:49:15,158 INFO L225 Difference]: With dead ends: 57 [2021-11-02 22:49:15,159 INFO L226 Difference]: Without dead ends: 52 [2021-11-02 22:49:15,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2021-11-02 22:49:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-02 22:49:15,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-02 22:49:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:49:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-11-02 22:49:15,185 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-11-02 22:49:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:49:15,185 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-11-02 22:49:15,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:49:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-11-02 22:49:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-02 22:49:15,187 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:49:15,188 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:49:15,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:49:15,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:49:15,391 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 22:49:15,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:49:15,392 INFO L85 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-11-02 22:49:15,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 22:49:15,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506381097] [2021-11-02 22:49:15,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:49:15,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 22:49:15,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 22:49:15,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 22:49:15,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-02 22:49:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:49:15,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 22:49:15,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:49:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:49:16,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 22:49:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:49:17,606 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 22:49:17,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506381097] [2021-11-02 22:49:17,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506381097] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 22:49:17,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:49:17,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-02 22:49:17,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164434876] [2021-11-02 22:49:17,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 22:49:17,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 22:49:17,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 22:49:17,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:49:17,609 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:49:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:49:17,841 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-11-02 22:49:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:49:17,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-02 22:49:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:49:17,843 INFO L225 Difference]: With dead ends: 52 [2021-11-02 22:49:17,843 INFO L226 Difference]: Without dead ends: 0 [2021-11-02 22:49:17,844 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:49:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-02 22:49:17,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-02 22:49:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:49:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 22:49:17,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-02 22:49:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:49:17,845 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:49:17,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:49:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:49:17,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-02 22:49:17,849 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:49:17,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:49:18,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 22:49:18,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-02 22:49:18,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:18,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-02 22:49:23,340 WARN L207 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2021-11-02 22:49:23,343 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-11-02 22:49:23,343 INFO L853 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-11-02 22:49:23,344 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-02 22:49:23,344 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-11-02 22:49:23,344 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-11-02 22:49:23,344 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-11-02 22:49:23,345 INFO L857 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-11-02 22:49:23,345 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-11-02 22:49:23,346 INFO L857 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,346 INFO L857 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-11-02 22:49:23,347 INFO L853 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-11-02 22:49:23,347 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-11-02 22:49:23,347 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-11-02 22:49:23,347 INFO L857 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-11-02 22:49:23,348 INFO L857 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,348 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,348 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-11-02 22:49:23,348 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-11-02 22:49:23,349 INFO L857 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-11-02 22:49:23,349 INFO L857 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-11-02 22:49:23,349 INFO L853 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-11-02 22:49:23,350 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-02 22:49:23,350 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-11-02 22:49:23,351 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-02 22:49:23,351 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-11-02 22:49:23,351 INFO L857 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-11-02 22:49:23,351 INFO L853 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-11-02 22:49:23,352 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-02 22:49:23,352 INFO L857 garLoopResultBuilder]: For program point L177(lines 177 180) no Hoare annotation was computed. [2021-11-02 22:49:23,354 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-11-02 22:49:23,355 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-11-02 22:49:23,355 INFO L857 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-11-02 22:49:23,355 INFO L853 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= ULTIMATE.start_fmod_double_~x (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-02 22:49:23,357 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-02 22:49:23,357 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-11-02 22:49:23,357 INFO L853 garLoopResultBuilder]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2021-11-02 22:49:23,357 INFO L853 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-11-02 22:49:23,358 INFO L857 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,358 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-11-02 22:49:23,358 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-11-02 22:49:23,358 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-11-02 22:49:23,359 INFO L857 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,359 INFO L857 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,359 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-02 22:49:23,359 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 178) no Hoare annotation was computed. [2021-11-02 22:49:23,360 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-11-02 22:49:23,360 INFO L857 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,360 INFO L860 garLoopResultBuilder]: At program point L182(lines 165 183) the Hoare annotation is: true [2021-11-02 22:49:23,360 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-11-02 22:49:23,361 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-11-02 22:49:23,361 INFO L853 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|))) [2021-11-02 22:49:23,361 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-11-02 22:49:23,365 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-11-02 22:49:23,365 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-11-02 22:49:23,366 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-11-02 22:49:23,372 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-02 22:49:23,374 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:49:23,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-02 22:49:23,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-02 22:49:23,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:49:23 BoogieIcfgContainer [2021-11-02 22:49:23,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:49:23,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:49:23,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:49:23,416 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:49:23,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:47:44" (3/4) ... [2021-11-02 22:49:23,420 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 22:49:23,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-02 22:49:23,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-02 22:49:23,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:49:23,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:49:23,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:49:23,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:49:23,481 INFO L168 Benchmark]: Toolchain (without parser) took 105397.93 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 56.2 MB in the beginning and 63.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,481 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 72.8 MB in the beginning and 72.7 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:49:23,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.36 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 73.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.62 ms. Allocated memory is still 92.3 MB. Free memory was 73.8 MB in the beginning and 71.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,483 INFO L168 Benchmark]: Boogie Preprocessor took 95.59 ms. Allocated memory is still 92.3 MB. Free memory was 71.5 MB in the beginning and 69.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,484 INFO L168 Benchmark]: RCFGBuilder took 5642.33 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 50.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,485 INFO L168 Benchmark]: TraceAbstraction took 99140.24 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 66.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,485 INFO L168 Benchmark]: Witness Printer took 66.85 ms. Allocated memory is still 117.4 MB. Free memory was 66.3 MB in the beginning and 63.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:49:23,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 72.8 MB in the beginning and 72.7 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.36 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 73.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.62 ms. Allocated memory is still 92.3 MB. Free memory was 73.8 MB in the beginning and 71.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.59 ms. Allocated memory is still 92.3 MB. Free memory was 71.5 MB in the beginning and 69.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5642.33 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 50.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 99140.24 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 66.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 66.85 ms. Allocated memory is still 117.4 MB. Free memory was 66.3 MB in the beginning and 63.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 178]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 99.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 15 SDslu, 398 SDs, 0 SdLazy, 32 SolverSat, 4 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 42.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 32 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 60.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 450 SizeOfPredicates, 19 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2021-11-02 22:49:23,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-02 22:49:23,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-11-02 22:49:23,727 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-02 22:49:23,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7bd6d29-b495-49d4-a557-09fa5859a3d5/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE