./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c57c239736851c67037a19023adceb82e24847c ................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c57c239736851c67037a19023adceb82e24847c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:12:22,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:12:22,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:12:22,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:12:22,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:12:22,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:12:22,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:12:22,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:12:22,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:12:22,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:12:22,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:12:22,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:12:22,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:12:22,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:12:22,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:12:22,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:12:22,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:12:22,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:12:22,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:12:22,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:12:22,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:12:22,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:12:22,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:12:22,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:12:22,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:12:22,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:12:22,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:12:22,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:12:22,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:12:22,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:12:22,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:12:22,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:12:22,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:12:22,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:12:22,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:12:22,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:12:22,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:12:22,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:12:22,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:12:22,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:12:22,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:12:22,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:12:22,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:12:22,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:12:22,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:12:22,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:12:22,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:12:22,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:12:22,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:12:22,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:12:22,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:12:22,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:12:22,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:12:22,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer 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(__VERIFIER_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 -> 4c57c239736851c67037a19023adceb82e24847c [2019-12-07 12:12:22,598 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:12:22,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:12:22,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:12:22,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:12:22,610 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:12:22,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-12-07 12:12:22,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/8a479e528/af7fc96e9fd94fc9ad7dadd0b5d50317/FLAG80a0f8b87 [2019-12-07 12:12:23,067 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:12:23,067 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-12-07 12:12:23,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/8a479e528/af7fc96e9fd94fc9ad7dadd0b5d50317/FLAG80a0f8b87 [2019-12-07 12:12:23,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/8a479e528/af7fc96e9fd94fc9ad7dadd0b5d50317 [2019-12-07 12:12:23,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:12:23,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:12:23,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:12:23,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:12:23,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:12:23,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151e0143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23, skipping insertion in model container [2019-12-07 12:12:23,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:12:23,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:12:23,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:12:23,276 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:12:23,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:12:23,320 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:12:23,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23 WrapperNode [2019-12-07 12:12:23,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:12:23,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:12:23,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:12:23,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:12:23,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:12:23,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:12:23,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:12:23,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:12:23,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... [2019-12-07 12:12:23,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:12:23,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:12:23,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:12:23,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:12:23,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:12:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:12:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 12:12:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:12:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 12:12:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:12:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:12:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:12:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 12:12:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:12:23,653 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:12:23,654 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 12:12:23,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:23 BoogieIcfgContainer [2019-12-07 12:12:23,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:12:23,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:12:23,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:12:23,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:12:23,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:12:23" (1/3) ... [2019-12-07 12:12:23,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d638a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:12:23, skipping insertion in model container [2019-12-07 12:12:23,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:23" (2/3) ... [2019-12-07 12:12:23,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d638a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:12:23, skipping insertion in model container [2019-12-07 12:12:23,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:23" (3/3) ... [2019-12-07 12:12:23,659 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-12-07 12:12:23,667 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:12:23,671 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:12:23,678 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:12:23,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:12:23,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:12:23,693 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:12:23,693 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:12:23,693 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:12:23,693 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:12:23,693 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:12:23,693 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:12:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 12:12:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:12:23,707 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:23,707 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:23,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:12:23,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:23,711 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-12-07 12:12:23,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:23,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104866920] [2019-12-07 12:12:23,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:23,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104866920] [2019-12-07 12:12:23,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:23,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:12:23,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311885693] [2019-12-07 12:12:23,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:12:23,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:12:23,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:12:23,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:12:23,824 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-12-07 12:12:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:23,837 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-12-07 12:12:23,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:12:23,837 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 12:12:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:23,844 INFO L225 Difference]: With dead ends: 76 [2019-12-07 12:12:23,844 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 12:12:23,846 INFO L630 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 [2019-12-07 12:12:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 12:12:23,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 12:12:23,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 12:12:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-12-07 12:12:23,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-12-07 12:12:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:23,870 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-12-07 12:12:23,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:12:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-12-07 12:12:23,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 12:12:23,871 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:23,871 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:23,871 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:12:23,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:23,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-12-07 12:12:23,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:12:23,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768929600] [2019-12-07 12:12:23,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:12:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:12:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:12:23,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:12:23,978 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:12:24,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:12:24 BoogieIcfgContainer [2019-12-07 12:12:24,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:12:24,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:12:24,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:12:24,009 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:12:24,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:23" (3/4) ... [2019-12-07 12:12:24,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:12:24,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:12:24,014 INFO L168 Benchmark]: Toolchain (without parser) took 930.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 947.8 MB in the beginning and 1.0 GB in the end (delta: -78.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:24,014 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:24,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:24,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:24,015 INFO L168 Benchmark]: Boogie Preprocessor took 25.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:24,016 INFO L168 Benchmark]: RCFGBuilder took 274.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:24,016 INFO L168 Benchmark]: TraceAbstraction took 353.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:24,016 INFO L168 Benchmark]: Witness Printer took 3.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:24,019 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 274.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 353.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 158. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = 0.0; [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L82] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L155] double res = atan_double(x); [L158] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L158] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L159] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 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=39occurred in iteration=0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 12:12:25,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:12:25,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:12:25,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:12:25,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:12:25,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:12:25,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:12:25,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:12:25,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:12:25,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:12:25,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:12:25,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:12:25,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:12:25,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:12:25,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:12:25,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:12:25,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:12:25,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:12:25,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:12:25,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:12:25,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:12:25,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:12:25,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:12:25,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:12:25,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:12:25,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:12:25,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:12:25,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:12:25,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:12:25,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:12:25,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:12:25,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:12:25,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:12:25,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:12:25,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:12:25,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:12:25,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:12:25,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:12:25,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:12:25,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:12:25,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:12:25,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:12:25,416 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:12:25,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:12:25,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:12:25,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:12:25,417 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:12:25,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:12:25,418 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:12:25,419 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:12:25,419 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:12:25,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:12:25,419 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:12:25,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:12:25,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:12:25,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:12:25,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:12:25,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:12:25,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:12:25,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:12:25,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:12:25,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:12:25,421 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:12:25,421 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:12:25,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:12:25,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:12:25,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:12:25,421 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer 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(__VERIFIER_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 -> 4c57c239736851c67037a19023adceb82e24847c [2019-12-07 12:12:25,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:12:25,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:12:25,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:12:25,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:12:25,598 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:12:25,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-12-07 12:12:25,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/21e6f895b/cba9c72d5ff940caafa349f389778efb/FLAG88c467f7d [2019-12-07 12:12:26,050 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:12:26,051 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-12-07 12:12:26,055 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/21e6f895b/cba9c72d5ff940caafa349f389778efb/FLAG88c467f7d [2019-12-07 12:12:26,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/data/21e6f895b/cba9c72d5ff940caafa349f389778efb [2019-12-07 12:12:26,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:12:26,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:12:26,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:12:26,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:12:26,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:12:26,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60739eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26, skipping insertion in model container [2019-12-07 12:12:26,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:12:26,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:12:26,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:12:26,607 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:12:26,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:12:26,691 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:12:26,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26 WrapperNode [2019-12-07 12:12:26,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:12:26,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:12:26,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:12:26,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:12:26,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:12:26,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:12:26,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:12:26,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:12:26,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... [2019-12-07 12:12:26,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:12:26,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:12:26,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:12:26,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:12:26,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:12:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:12:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:12:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:12:42,860 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:12:42,860 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 12:12:42,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:42 BoogieIcfgContainer [2019-12-07 12:12:42,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:12:42,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:12:42,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:12:42,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:12:42,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:12:26" (1/3) ... [2019-12-07 12:12:42,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d07197d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:12:42, skipping insertion in model container [2019-12-07 12:12:42,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:12:26" (2/3) ... [2019-12-07 12:12:42,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d07197d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:12:42, skipping insertion in model container [2019-12-07 12:12:42,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:42" (3/3) ... [2019-12-07 12:12:42,866 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-12-07 12:12:42,873 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:12:42,878 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:12:42,886 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:12:42,900 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:12:42,900 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:12:42,900 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:12:42,900 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:12:42,901 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:12:42,901 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:12:42,901 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:12:42,901 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:12:42,909 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 12:12:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:12:42,913 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:42,914 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:42,914 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:12:42,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:42,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-12-07 12:12:42,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:12:42,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518704167] [2019-12-07 12:12:42,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 12:12:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:43,197 INFO L264 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:12:43,201 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:12:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:43,212 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:12:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:43,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518704167] [2019-12-07 12:12:43,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:43,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:12:43,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328988222] [2019-12-07 12:12:43,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:12:43,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:12:43,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:12:43,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:12:43,231 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-12-07 12:12:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:43,245 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-12-07 12:12:43,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:12:43,246 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 12:12:43,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:43,252 INFO L225 Difference]: With dead ends: 76 [2019-12-07 12:12:43,253 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 12:12:43,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:12:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 12:12:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 12:12:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 12:12:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-12-07 12:12:43,278 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-12-07 12:12:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:43,278 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-12-07 12:12:43,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:12:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-12-07 12:12:43,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 12:12:43,279 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:43,279 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:43,480 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:12:43,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:12:43,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:43,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-12-07 12:12:43,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:12:43,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704863519] [2019-12-07 12:12:43,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 12:12:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:43,810 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 12:12:43,813 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:12:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:43,875 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:12:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:43,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704863519] [2019-12-07 12:12:43,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:43,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 12:12:43,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042797150] [2019-12-07 12:12:43,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:12:43,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:12:43,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:12:43,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:12:43,929 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2019-12-07 12:12:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:52,403 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-12-07 12:12:52,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:12:52,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-12-07 12:12:52,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:52,404 INFO L225 Difference]: With dead ends: 59 [2019-12-07 12:12:52,405 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 12:12:52,406 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:12:52,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 12:12:52,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-12-07 12:12:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 12:12:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-12-07 12:12:52,409 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-12-07 12:12:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:52,410 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-12-07 12:12:52,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:12:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-12-07 12:12:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 12:12:52,410 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:52,411 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:52,611 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:12:52,612 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:12:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:52,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2019-12-07 12:12:52,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:12:52,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51995648] [2019-12-07 12:12:52,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 12:12:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:52,942 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:12:52,943 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:12:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:52,973 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:12:52,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:12:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:52,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51995648] [2019-12-07 12:12:52,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:52,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-12-07 12:12:52,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28113254] [2019-12-07 12:12:52,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:12:52,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:12:52,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:12:53,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:12:53,000 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-12-07 12:13:00,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:00,926 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-12-07 12:13:00,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:13:00,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-12-07 12:13:00,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:00,927 INFO L225 Difference]: With dead ends: 35 [2019-12-07 12:13:00,927 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 12:13:00,928 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:13:00,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 12:13:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-12-07 12:13:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 12:13:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-12-07 12:13:00,931 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-12-07 12:13:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:00,931 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-12-07 12:13:00,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:13:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-12-07 12:13:00,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 12:13:00,932 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:00,932 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:13:01,132 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:13:01,133 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:01,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:01,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2019-12-07 12:13:01,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:13:01,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184519046] [2019-12-07 12:13:01,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 12:13:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:05,019 INFO L264 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:13:05,021 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:13:05,092 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:05,899 WARN L192 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-07 12:13:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:13:06,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184519046] [2019-12-07 12:13:06,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:06,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 12:13:06,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693821715] [2019-12-07 12:13:06,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:13:06,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:13:06,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:13:06,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:13:06,150 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-12-07 12:13:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:06,316 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-12-07 12:13:06,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:13:06,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-07 12:13:06,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:06,326 INFO L225 Difference]: With dead ends: 32 [2019-12-07 12:13:06,326 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 12:13:06,326 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:13:06,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 12:13:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 12:13:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 12:13:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-12-07 12:13:06,329 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-12-07 12:13:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:06,330 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-12-07 12:13:06,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:13:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-12-07 12:13:06,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:13:06,331 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:13:06,331 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:13:06,531 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:13:06,532 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:13:06,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:06,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2019-12-07 12:13:06,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:13:06,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736218722] [2019-12-07 12:13:06,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 12:13:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:06,853 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 12:13:06,856 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:06,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:13:06,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:13:06,953 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:13:06,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:13:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:13:07,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736218722] [2019-12-07 12:13:07,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:13:07,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-12-07 12:13:07,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537285011] [2019-12-07 12:13:07,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 12:13:07,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:13:07,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 12:13:07,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-12-07 12:13:07,135 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-12-07 12:13:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:13:07,416 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-12-07 12:13:07,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:13:07,417 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-12-07 12:13:07,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:13:07,417 INFO L225 Difference]: With dead ends: 18 [2019-12-07 12:13:07,417 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:13:07,418 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-12-07 12:13:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:13:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:13:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:13:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:13:07,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-12-07 12:13:07,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:13:07,419 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:13:07,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 12:13:07,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:13:07,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:13:07,620 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:13:07,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:13:07,830 INFO L246 CegarLoopResult]: For program point L68-3(lines 68 72) no Hoare annotation was computed. [2019-12-07 12:13:07,830 INFO L246 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2019-12-07 12:13:07,830 INFO L246 CegarLoopResult]: For program point L126(lines 126 131) no Hoare annotation was computed. [2019-12-07 12:13:07,830 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-12-07 12:13:07,830 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-12-07 12:13:07,830 INFO L242 CegarLoopResult]: At program point L143(lines 134 144) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_13| (_ BitVec 64))) (and (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_13|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_13|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_13|)) (_ +zero 11 53))))) [2019-12-07 12:13:07,830 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L242 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point L96(lines 96 112) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L242 CegarLoopResult]: At program point L30(lines 17 31) the Hoare annotation is: false [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point L88(lines 88 113) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point L105(lines 105 111) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L246 CegarLoopResult]: For program point L105-2(lines 88 113) no Hoare annotation was computed. [2019-12-07 12:13:07,831 INFO L249 CegarLoopResult]: At program point L163(lines 146 164) the Hoare annotation is: true [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L97(lines 97 103) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L130-2(line 130) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L242 CegarLoopResult]: At program point L130-3(lines 64 132) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L89(lines 89 92) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L89-2(lines 89 92) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L90(lines 90 91) no Hoare annotation was computed. [2019-12-07 12:13:07,832 INFO L246 CegarLoopResult]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L24-1(lines 17 31) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L24-2(lines 24 29) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L74(lines 74 87) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L83(lines 83 86) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L158-2(lines 158 161) no Hoare annotation was computed. [2019-12-07 12:13:07,833 INFO L246 CegarLoopResult]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-12-07 12:13:07,834 INFO L242 CegarLoopResult]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-12-07 12:13:07,834 INFO L246 CegarLoopResult]: For program point L76-3(lines 74 87) no Hoare annotation was computed. [2019-12-07 12:13:07,834 INFO L246 CegarLoopResult]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2019-12-07 12:13:07,834 INFO L242 CegarLoopResult]: At program point L68-2(lines 68 72) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 12:13:07,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,849 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,849 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,850 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,851 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:13:07 BoogieIcfgContainer [2019-12-07 12:13:07,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:13:07,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:13:07,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:13:07,856 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:13:07,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:12:42" (3/4) ... [2019-12-07 12:13:07,858 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:13:07,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-12-07 12:13:07,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 12:13:07,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:13:07,885 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 12:13:07,886 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 12:13:07,886 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 0bv32 && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: msw == v_skolemized_q#valueAsBitvector_13[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~Pluszero~LONGDOUBLE()) [2019-12-07 12:13:07,912 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7f1fa68c-04fa-4954-a350-c431b8a38712/bin/uautomizer/witness.graphml [2019-12-07 12:13:07,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:13:07,913 INFO L168 Benchmark]: Toolchain (without parser) took 41482.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.4 MB in the beginning and 836.5 MB in the end (delta: 115.8 MB). Peak memory consumption was 238.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:07,913 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:07,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:07,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:07,913 INFO L168 Benchmark]: Boogie Preprocessor took 30.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:07,914 INFO L168 Benchmark]: RCFGBuilder took 16101.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:07,914 INFO L168 Benchmark]: TraceAbstraction took 24993.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.2 MB in the end (delta: 218.0 MB). Peak memory consumption was 218.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:07,914 INFO L168 Benchmark]: Witness Printer took 56.46 ms. Allocated memory is still 1.2 GB. Free memory was 843.2 MB in the beginning and 836.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:07,916 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 16101.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24993.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.2 MB in the end (delta: 218.0 MB). Peak memory consumption was 218.0 MB. Max. memory is 11.5 GB. * Witness Printer took 56.46 ms. Allocated memory is still 1.2 GB. Free memory was 843.2 MB in the beginning and 836.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant [2019-12-07 12:13:07,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,920 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 134]: Loop Invariant [2019-12-07 12:13:07,921 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,922 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,922 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,922 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,923 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,923 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_13,QUANTIFIED] [2019-12-07 12:13:07,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((\result == 0bv32 && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_13 : bv64 :: msw == v_skolemized_q#valueAsBitvector_13[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_13[63:63], v_skolemized_q#valueAsBitvector_13[62:52], v_skolemized_q#valueAsBitvector_13[51:0]) == ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant [2019-12-07 12:13:07,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 68]: Loop Invariant [2019-12-07 12:13:07,925 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,926 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:13:07,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:13:07,926 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 24.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 113 SDtfs, 176 SDslu, 186 SDs, 0 SdLazy, 77 SolverSat, 13 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 15.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 113 HoareAnnotationTreeSize, 8 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 9201 SizeOfPredicates, 28 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...