./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 fcfb0681d482dd50f2d20807361558887e88a0e8 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 fcfb0681d482dd50f2d20807361558887e88a0e8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:34:17,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:34:17,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:34:17,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:34:17,346 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:34:17,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:34:17,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:34:17,348 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:34:17,349 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:34:17,350 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:34:17,350 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:34:17,351 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:34:17,351 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:34:17,352 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:34:17,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:34:17,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:34:17,353 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:34:17,354 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:34:17,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:34:17,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:34:17,357 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:34:17,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:34:17,359 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:34:17,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:34:17,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:34:17,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:34:17,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:34:17,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:34:17,362 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:34:17,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:34:17,363 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:34:17,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:34:17,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:34:17,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:34:17,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:34:17,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:34:17,365 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:34:17,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:34:17,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:34:17,375 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:34:17,376 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:34:17,376 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:34:17,376 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:34:17,376 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:34:17,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:34:17,377 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:34:17,377 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:34:17,377 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:34:17,377 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:34:17,377 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:34:17,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:34:17,378 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:34:17,378 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:34:17,378 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:34:17,378 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:34:17,378 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:34:17,378 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:34:17,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:34:17,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:34:17,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:34:17,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:34:17,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:34:17,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:34:17,380 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:34:17,380 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:34:17,380 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:34:17,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:34:17,380 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 -> fcfb0681d482dd50f2d20807361558887e88a0e8 [2018-11-28 11:34:17,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:34:17,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:34:17,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:34:17,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:34:17,417 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:34:17,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c [2018-11-28 11:34:17,458 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/9fa23cfa3/a96bd84910564443857a74f670b7a34e/FLAGeeaac93c5 [2018-11-28 11:34:17,782 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:34:17,783 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c [2018-11-28 11:34:17,789 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/9fa23cfa3/a96bd84910564443857a74f670b7a34e/FLAGeeaac93c5 [2018-11-28 11:34:17,802 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/9fa23cfa3/a96bd84910564443857a74f670b7a34e [2018-11-28 11:34:17,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:34:17,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:34:17,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:34:17,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:34:17,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:34:17,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:34:17" (1/1) ... [2018-11-28 11:34:17,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccccc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:17, skipping insertion in model container [2018-11-28 11:34:17,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:34:17" (1/1) ... [2018-11-28 11:34:17,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:34:17,835 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:34:17,977 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:34:17,983 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:34:18,055 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:34:18,076 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:34:18,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18 WrapperNode [2018-11-28 11:34:18,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:34:18,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:34:18,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:34:18,077 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:34:18,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:34:18,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:34:18,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:34:18,096 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:34:18,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... [2018-11-28 11:34:18,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:34:18,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:34:18,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:34:18,137 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:34:18,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 [2018-11-28 11:34:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:34:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:34:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-11-28 11:34:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-11-28 11:34:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 11:34:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:34:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 11:34:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 11:34:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:34:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:34:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 11:34:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:34:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-11-28 11:34:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-11-28 11:34:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:34:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:34:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:34:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 11:34:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:34:18,604 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:34:18,605 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 11:34:18,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:34:18 BoogieIcfgContainer [2018-11-28 11:34:18,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:34:18,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:34:18,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:34:18,608 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:34:18,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:34:17" (1/3) ... [2018-11-28 11:34:18,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4235deaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:34:18, skipping insertion in model container [2018-11-28 11:34:18,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:18" (2/3) ... [2018-11-28 11:34:18,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4235deaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:34:18, skipping insertion in model container [2018-11-28 11:34:18,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:34:18" (3/3) ... [2018-11-28 11:34:18,611 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b_true-unreach-call.c [2018-11-28 11:34:18,616 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:34:18,621 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:34:18,631 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:34:18,649 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:34:18,650 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:34:18,650 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:34:18,650 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:34:18,650 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:34:18,650 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:34:18,650 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:34:18,650 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:34:18,650 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:34:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-11-28 11:34:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 11:34:18,668 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:34:18,668 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:34:18,670 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:34:18,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:34:18,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-11-28 11:34:18,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:34:18,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:34:18,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:34:18,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:34:18,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:34:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:34:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:34:18,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:34:18,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:34:18,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:34:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:34:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:34:18,810 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-11-28 11:34:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:34:18,830 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-11-28 11:34:18,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:34:18,831 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 11:34:18,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:34:18,839 INFO L225 Difference]: With dead ends: 197 [2018-11-28 11:34:18,839 INFO L226 Difference]: Without dead ends: 98 [2018-11-28 11:34:18,842 INFO L631 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 [2018-11-28 11:34:18,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-28 11:34:18,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-11-28 11:34:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-28 11:34:18,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-11-28 11:34:18,871 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-11-28 11:34:18,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:34:18,871 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-11-28 11:34:18,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:34:18,871 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-11-28 11:34:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 11:34:18,872 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:34:18,872 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:34:18,872 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:34:18,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:34:18,873 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-11-28 11:34:18,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:34:18,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:34:18,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:34:18,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:34:18,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:34:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:34:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:34:18,971 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:34:18,995 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 97 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-11-28 11:34:18,996 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 119 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 11:34:18,996 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 109 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 11:34:18,996 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 104 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-11-28 11:34:18,997 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 100 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 11:34:18,997 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 92 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 11:34:19,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:34:19 BoogieIcfgContainer [2018-11-28 11:34:19,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:34:19,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:34:19,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:34:19,009 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:34:19,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:34:18" (3/4) ... [2018-11-28 11:34:19,012 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:34:19,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:34:19,013 INFO L168 Benchmark]: Toolchain (without parser) took 1208.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -90.4 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:34:19,014 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:34:19,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:34:19,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.39 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:34:19,015 INFO L168 Benchmark]: Boogie Preprocessor took 41.52 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:34:19,015 INFO L168 Benchmark]: RCFGBuilder took 467.95 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:34:19,016 INFO L168 Benchmark]: TraceAbstraction took 403.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:34:19,016 INFO L168 Benchmark]: Witness Printer took 3.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:34:19,018 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.39 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.52 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 467.95 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 403.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.15 ms. Allocated memory is still 1.2 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 97 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 119 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 109 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 104 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 100 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 92 could not be translated for associated CType ARRAY#_4_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 259]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 258. 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; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=117, \old(one_atan)=105, \old(pi)=112, \old(pi_lo_atan2)=103, \old(pi_o_2)=89, \old(pi_o_4)=107, \old(tiny_atan2)=118, \old(zero_atan2)=96, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] double x = __VERIFIER_nondet_double(); [L251] double y = 0.0; VAL [aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L253] COND TRUE x < 0.0 VAL [aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L255] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=108, \old(y)=0, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=108, \old(y)=0, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [\old(x)=108, \old(y)=0, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, lx=113, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [\old(x)=108, \old(y)=0, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, hy=2, lx=113, ly=93, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [\old(x)=108, \old(y)=0, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, hy=2, lx=113, ly=93, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L255] RET, EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=111, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != pi VAL [aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=111, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L259] __VERIFIER_error() VAL [aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=111, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 103 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 143 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=103occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-0cd3be1 [2018-11-28 11:34:20,457 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:34:20,458 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:34:20,466 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:34:20,466 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:34:20,467 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:34:20,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:34:20,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:34:20,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:34:20,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:34:20,471 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:34:20,471 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:34:20,472 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:34:20,473 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:34:20,474 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:34:20,474 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:34:20,475 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:34:20,476 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:34:20,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:34:20,478 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:34:20,479 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:34:20,480 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:34:20,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:34:20,482 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:34:20,482 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:34:20,483 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:34:20,483 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:34:20,484 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:34:20,485 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:34:20,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:34:20,485 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:34:20,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:34:20,486 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:34:20,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:34:20,487 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:34:20,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:34:20,488 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:34:20,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:34:20,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:34:20,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:34:20,499 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:34:20,500 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:34:20,500 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:34:20,500 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:34:20,500 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:34:20,500 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:34:20,500 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:34:20,501 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:34:20,502 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:34:20,502 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:34:20,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:34:20,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:34:20,502 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:34:20,502 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:34:20,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:34:20,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:34:20,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:34:20,503 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:34:20,503 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:34:20,503 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:34:20,503 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:34:20,503 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:34:20,504 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 -> fcfb0681d482dd50f2d20807361558887e88a0e8 [2018-11-28 11:34:20,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:34:20,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:34:20,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:34:20,542 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:34:20,542 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:34:20,543 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c [2018-11-28 11:34:20,581 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/b67874db5/8ba69fb2ab2e464696adc59c45027696/FLAGc143cf777 [2018-11-28 11:34:20,991 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:34:20,991 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/sv-benchmarks/c/float-newlib/double_req_bl_0660b_true-unreach-call.c [2018-11-28 11:34:20,996 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/b67874db5/8ba69fb2ab2e464696adc59c45027696/FLAGc143cf777 [2018-11-28 11:34:21,005 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/data/b67874db5/8ba69fb2ab2e464696adc59c45027696 [2018-11-28 11:34:21,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:34:21,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:34:21,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:34:21,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:34:21,012 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:34:21,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326ac725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21, skipping insertion in model container [2018-11-28 11:34:21,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:34:21,038 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:34:21,208 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:34:21,216 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:34:21,264 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:34:21,289 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:34:21,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21 WrapperNode [2018-11-28 11:34:21,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:34:21,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:34:21,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:34:21,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:34:21,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:34:21,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:34:21,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:34:21,365 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:34:21,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... [2018-11-28 11:34:21,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:34:21,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:34:21,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:34:21,410 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:34:21,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 [2018-11-28 11:34:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 11:34:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 11:34:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:34:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:34:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-11-28 11:34:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-11-28 11:34:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 11:34:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 11:34:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:34:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:34:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-11-28 11:34:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:34:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-11-28 11:34:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-11-28 11:34:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 11:34:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:34:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:34:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 11:34:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:34:21,883 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:22,102 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:22,199 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:22,231 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:23,881 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:23,903 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:23,951 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:23,984 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:29,105 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:34:40,367 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:34:40,367 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 11:34:40,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:34:40 BoogieIcfgContainer [2018-11-28 11:34:40,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:34:40,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:34:40,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:34:40,371 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:34:40,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:34:21" (1/3) ... [2018-11-28 11:34:40,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6814ac80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:34:40, skipping insertion in model container [2018-11-28 11:34:40,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:34:21" (2/3) ... [2018-11-28 11:34:40,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6814ac80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:34:40, skipping insertion in model container [2018-11-28 11:34:40,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:34:40" (3/3) ... [2018-11-28 11:34:40,375 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b_true-unreach-call.c [2018-11-28 11:34:40,384 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:34:40,390 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:34:40,400 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:34:40,419 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:34:40,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:34:40,420 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:34:40,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:34:40,420 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:34:40,420 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:34:40,420 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:34:40,420 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:34:40,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:34:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-11-28 11:34:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 11:34:40,437 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:34:40,437 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:34:40,439 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:34:40,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:34:40,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-11-28 11:34:40,446 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:34:40,447 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 [2018-11-28 11:34:40,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:34:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:34:40,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:34:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:34:40,689 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:34:40,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:34:40,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:34:40,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:34:40,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:34:40,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:34:40,714 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-11-28 11:34:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:34:40,739 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-11-28 11:34:40,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:34:40,741 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 11:34:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:34:40,748 INFO L225 Difference]: With dead ends: 197 [2018-11-28 11:34:40,749 INFO L226 Difference]: Without dead ends: 98 [2018-11-28 11:34:40,751 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:34:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-28 11:34:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-11-28 11:34:40,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-28 11:34:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-11-28 11:34:40,784 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-11-28 11:34:40,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:34:40,784 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-11-28 11:34:40,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:34:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-11-28 11:34:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 11:34:40,785 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:34:40,785 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:34:40,785 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:34:40,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:34:40,786 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-11-28 11:34:40,786 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:34:40,786 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 [2018-11-28 11:34:40,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:34:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:34:41,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:34:41,214 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:34:41,215 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:34:41,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-11-28 11:34:41,296 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:34:41,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-11-28 11:34:41,305 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 11:34:41,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-11-28 11:34:41,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-11-28 11:34:41,372 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 11:34:41,394 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:34:41,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:34:41,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 11:34:41,444 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:21 [2018-11-28 11:34:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:34:41,933 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:34:41,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:34:41,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 11:34:41,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 11:34:41,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 11:34:41,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:34:41,946 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand 10 states. [2018-11-28 11:34:44,847 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-11-28 11:34:45,255 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-11-28 11:34:53,381 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-11-28 11:34:54,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:34:54,728 INFO L93 Difference]: Finished difference Result 134 states and 185 transitions. [2018-11-28 11:34:54,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 11:34:54,729 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-11-28 11:34:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:34:54,731 INFO L225 Difference]: With dead ends: 134 [2018-11-28 11:34:54,732 INFO L226 Difference]: Without dead ends: 104 [2018-11-28 11:34:54,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-28 11:34:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-28 11:34:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2018-11-28 11:34:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-28 11:34:54,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2018-11-28 11:34:54,741 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 122 transitions. Word has length 21 [2018-11-28 11:34:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:34:54,742 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 122 transitions. [2018-11-28 11:34:54,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 11:34:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2018-11-28 11:34:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:34:54,743 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:34:54,743 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:34:54,743 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:34:54,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:34:54,743 INFO L82 PathProgramCache]: Analyzing trace with hash -322982793, now seen corresponding path program 1 times [2018-11-28 11:34:54,744 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:34:54,744 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 [2018-11-28 11:34:54,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:34:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:34:54,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:34:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:34:55,215 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:34:55,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:34:55,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 11:34:55,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 11:34:55,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 11:34:55,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 11:34:55,230 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. Second operand 8 states. [2018-11-28 11:34:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:34:58,446 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2018-11-28 11:34:58,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 11:34:58,447 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-11-28 11:34:58,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:34:58,448 INFO L225 Difference]: With dead ends: 131 [2018-11-28 11:34:58,448 INFO L226 Difference]: Without dead ends: 89 [2018-11-28 11:34:58,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:34:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-28 11:34:58,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-11-28 11:34:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-28 11:34:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 116 transitions. [2018-11-28 11:34:58,457 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 116 transitions. Word has length 26 [2018-11-28 11:34:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:34:58,458 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 116 transitions. [2018-11-28 11:34:58,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 11:34:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 116 transitions. [2018-11-28 11:34:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:34:58,459 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:34:58,459 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:34:58,459 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:34:58,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:34:58,459 INFO L82 PathProgramCache]: Analyzing trace with hash -442139595, now seen corresponding path program 1 times [2018-11-28 11:34:58,460 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:34:58,460 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/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 [2018-11-28 11:34:58,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:34:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:34:58,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:34:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:34:58,767 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:34:58,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:34:58,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 11:34:58,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 11:34:58,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:34:58,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:34:58,781 INFO L87 Difference]: Start difference. First operand 89 states and 116 transitions. Second operand 6 states. [2018-11-28 11:35:02,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:35:02,298 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2018-11-28 11:35:02,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:35:02,299 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-28 11:35:02,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:35:02,300 INFO L225 Difference]: With dead ends: 96 [2018-11-28 11:35:02,300 INFO L226 Difference]: Without dead ends: 89 [2018-11-28 11:35:02,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 11:35:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-28 11:35:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-11-28 11:35:02,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-28 11:35:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2018-11-28 11:35:02,308 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 26 [2018-11-28 11:35:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:35:02,308 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2018-11-28 11:35:02,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 11:35:02,309 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2018-11-28 11:35:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:35:02,309 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:35:02,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:35:02,310 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:35:02,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:35:02,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1332867767, now seen corresponding path program 1 times [2018-11-28 11:35:02,311 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:35:02,311 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 11:35:02,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 11:35:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:35:02,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:35:02,683 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:35:02,684 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:35:02,684 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:35:02,685 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 11:35:02,686 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-11-28 11:35:02,782 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2018-11-28 11:35:02,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 11:35:02,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2018-11-28 11:35:02,814 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-28 11:35:02,815 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 11:35:02,816 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:35:02,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-11-28 11:35:02,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-11-28 11:35:02,843 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-28 11:35:02,850 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:35:02,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 11:35:02,881 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 11:35:02,881 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-11-28 11:35:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:35:02,997 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:35:03,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:35:03,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 11:35:03,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:35:03,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:35:03,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:35:03,010 INFO L87 Difference]: Start difference. First operand 89 states and 115 transitions. Second operand 7 states. [2018-11-28 11:35:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:35:06,822 INFO L93 Difference]: Finished difference Result 122 states and 161 transitions. [2018-11-28 11:35:06,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 11:35:06,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 11:35:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:35:06,824 INFO L225 Difference]: With dead ends: 122 [2018-11-28 11:35:06,824 INFO L226 Difference]: Without dead ends: 89 [2018-11-28 11:35:06,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:35:06,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-28 11:35:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-11-28 11:35:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-28 11:35:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2018-11-28 11:35:06,837 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 26 [2018-11-28 11:35:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:35:06,837 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2018-11-28 11:35:06,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:35:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2018-11-28 11:35:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 11:35:06,838 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:35:06,838 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:35:06,838 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:35:06,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:35:06,838 INFO L82 PathProgramCache]: Analyzing trace with hash 388865316, now seen corresponding path program 1 times [2018-11-28 11:35:06,840 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:35:06,840 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 11:35:06,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:35:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:35:07,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:35:07,357 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 11:35:07,481 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 11:35:07,661 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 11:35:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:35:07,665 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:35:07,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:35:07,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 11:35:07,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 11:35:07,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:35:07,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:35:07,678 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand 6 states. [2018-11-28 11:35:08,979 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 11:35:09,107 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 11:35:14,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:35:14,909 INFO L93 Difference]: Finished difference Result 95 states and 119 transitions. [2018-11-28 11:35:14,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:35:14,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-11-28 11:35:14,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:35:14,911 INFO L225 Difference]: With dead ends: 95 [2018-11-28 11:35:14,911 INFO L226 Difference]: Without dead ends: 89 [2018-11-28 11:35:14,911 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 11:35:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-28 11:35:14,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-11-28 11:35:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-28 11:35:14,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2018-11-28 11:35:14,921 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 112 transitions. Word has length 27 [2018-11-28 11:35:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:35:14,921 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 112 transitions. [2018-11-28 11:35:14,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 11:35:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 112 transitions. [2018-11-28 11:35:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 11:35:14,922 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:35:14,922 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:35:14,922 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:35:14,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:35:14,923 INFO L82 PathProgramCache]: Analyzing trace with hash 415778449, now seen corresponding path program 1 times [2018-11-28 11:35:14,923 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:35:14,923 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31a7d34f-b947-4d44-8940-ab0021ce47ed/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-28 11:35:14,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:35:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:35:15,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:35:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:35:15,469 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:35:15,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:35:15,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 11:35:15,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 11:35:15,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 11:35:15,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 11:35:15,482 INFO L87 Difference]: Start difference. First operand 89 states and 112 transitions. Second operand 10 states. [2018-11-28 11:35:16,264 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2018-11-28 11:35:17,862 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2018-11-28 11:35:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:35:19,636 INFO L93 Difference]: Finished difference Result 89 states and 112 transitions. [2018-11-28 11:35:19,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 11:35:19,636 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-11-28 11:35:19,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:35:19,637 INFO L225 Difference]: With dead ends: 89 [2018-11-28 11:35:19,637 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:35:19,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2018-11-28 11:35:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:35:19,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:35:19,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:35:19,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:35:19,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-28 11:35:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:35:19,639 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:35:19,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 11:35:19,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:35:19,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:35:19,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:35:36,525 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-28 11:35:36,526 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1009) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:346) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 31 more [2018-11-28 11:35:36,527 INFO L168 Benchmark]: Toolchain (without parser) took 75520.23 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 943.4 MB in the beginning and 977.6 MB in the end (delta: -34.2 MB). Peak memory consumption was 187.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:35:36,528 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:35:36,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.55 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:35:36,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 921.9 MB in the beginning and 1.2 GB in the end (delta: -228.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:35:36,529 INFO L168 Benchmark]: Boogie Preprocessor took 44.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:35:36,529 INFO L168 Benchmark]: RCFGBuilder took 18958.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:35:36,530 INFO L168 Benchmark]: TraceAbstraction took 56158.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 977.6 MB in the end (delta: 106.3 MB). Peak memory consumption was 165.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:35:36,532 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.55 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 921.9 MB in the beginning and 1.2 GB in the end (delta: -228.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 18958.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 56158.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 59.2 MB). Free memory was 1.1 GB in the beginning and 977.6 MB in the end (delta: 106.3 MB). Peak memory consumption was 165.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 259]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...