./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0662b_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_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0662b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 427f5a1297639616b7c4f6533641105ea064cfe8 .................................................................................................................................................................................................................................................................................................................................................................... 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_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0662b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 427f5a1297639616b7c4f6533641105ea064cfe8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:34:22,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:34:22,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:34:22,412 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:34:22,412 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:34:22,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:34:22,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:34:22,414 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:34:22,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:34:22,415 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:34:22,416 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:34:22,416 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:34:22,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:34:22,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:34:22,417 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:34:22,418 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:34:22,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:34:22,419 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:34:22,420 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:34:22,421 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:34:22,422 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:34:22,423 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:34:22,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:34:22,425 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:34:22,425 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:34:22,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:34:22,426 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:34:22,427 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:34:22,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:34:22,428 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:34:22,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:34:22,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:34:22,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:34:22,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:34:22,429 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:34:22,430 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:34:22,430 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:34:22,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:34:22,440 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:34:22,441 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:34:22,441 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:34:22,441 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:34:22,441 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:34:22,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:34:22,442 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:34:22,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:34:22,443 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:34:22,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:34:22,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:34:22,444 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_2ecf0619-8f68-446b-8934-267297a2e5da/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 -> 427f5a1297639616b7c4f6533641105ea064cfe8 [2018-11-28 13:34:22,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:34:22,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:34:22,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:34:22,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:34:22,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:34:22,482 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0662b_true-unreach-call.c [2018-11-28 13:34:22,519 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/c7e963db8/9c50898f65654cef94bf8c6b61ad0065/FLAG908c9319e [2018-11-28 13:34:22,832 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:34:22,832 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/sv-benchmarks/c/float-newlib/double_req_bl_0662b_true-unreach-call.c [2018-11-28 13:34:22,838 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/c7e963db8/9c50898f65654cef94bf8c6b61ad0065/FLAG908c9319e [2018-11-28 13:34:22,846 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/c7e963db8/9c50898f65654cef94bf8c6b61ad0065 [2018-11-28 13:34:22,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:34:22,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:34:22,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:22,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:34:22,852 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:34:22,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:22" (1/1) ... [2018-11-28 13:34:22,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e873ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:22, skipping insertion in model container [2018-11-28 13:34:22,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:22" (1/1) ... [2018-11-28 13:34:22,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:34:22,877 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:34:23,006 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:23,010 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:34:23,085 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:23,103 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:34:23,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23 WrapperNode [2018-11-28 13:34:23,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:23,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:34:23,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:34:23,104 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:34:23,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:34:23,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:34:23,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:34:23,126 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:34:23,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... [2018-11-28 13:34:23,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:34:23,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:34:23,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:34:23,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:34:23,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:34:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:34:23,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:34:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-11-28 13:34:23,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-11-28 13:34:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 13:34:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:34:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 13:34:23,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 13:34:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:34:23,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:34:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 13:34:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:34:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-11-28 13:34:23,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-11-28 13:34:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:34:23,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:34:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:34:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 13:34:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:34:23,658 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:34:23,658 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 13:34:23,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:23 BoogieIcfgContainer [2018-11-28 13:34:23,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:34:23,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:34:23,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:34:23,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:34:23,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:34:22" (1/3) ... [2018-11-28 13:34:23,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64399a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:23, skipping insertion in model container [2018-11-28 13:34:23,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:23" (2/3) ... [2018-11-28 13:34:23,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64399a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:23, skipping insertion in model container [2018-11-28 13:34:23,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:23" (3/3) ... [2018-11-28 13:34:23,665 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b_true-unreach-call.c [2018-11-28 13:34:23,673 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:34:23,679 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:34:23,689 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:34:23,711 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:34:23,711 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:34:23,712 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:34:23,712 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:34:23,712 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:34:23,712 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:34:23,712 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:34:23,712 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:34:23,712 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:34:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-11-28 13:34:23,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:34:23,731 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:23,732 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 13:34:23,734 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:34:23,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:23,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-11-28 13:34:23,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:23,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:23,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:23,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:23,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:23,858 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 13:34:23,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:23,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:34:23,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:34:23,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:34:23,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:34:23,872 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-11-28 13:34:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:23,892 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-11-28 13:34:23,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:34:23,893 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 13:34:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:23,902 INFO L225 Difference]: With dead ends: 197 [2018-11-28 13:34:23,902 INFO L226 Difference]: Without dead ends: 98 [2018-11-28 13:34:23,905 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 13:34:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-28 13:34:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-11-28 13:34:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-28 13:34:23,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-11-28 13:34:23,935 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-11-28 13:34:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:23,935 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-11-28 13:34:23,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:34:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-11-28 13:34:23,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:34:23,936 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:23,937 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 13:34:23,937 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:34:23,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-11-28 13:34:23,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:34:23,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:34:23,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:23,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:23,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:34:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:34:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:34:24,038 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:34:24,062 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 100 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 13:34:24,063 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 97 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-11-28 13:34:24,063 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 104 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-11-28 13:34:24,064 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 119 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 13:34:24,064 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 108 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 13:34:24,064 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 92 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 13:34:24,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:34:24 BoogieIcfgContainer [2018-11-28 13:34:24,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:34:24,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:34:24,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:34:24,077 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:34:24,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:23" (3/4) ... [2018-11-28 13:34:24,079 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:34:24,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:34:24,080 INFO L168 Benchmark]: Toolchain (without parser) took 1231.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:24,081 INFO L168 Benchmark]: CDTParser took 0.10 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 13:34:24,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:24,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:34:24,082 INFO L168 Benchmark]: Boogie Preprocessor took 31.19 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:24,082 INFO L168 Benchmark]: RCFGBuilder took 501.21 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: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:24,083 INFO L168 Benchmark]: TraceAbstraction took 417.09 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:34:24,083 INFO L168 Benchmark]: Witness Printer took 3.04 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 13:34:24,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 254.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.19 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 501.21 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: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 417.09 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.04 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 100 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 97 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 104 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 108 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: 260]: 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 259. 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)=116, \old(one_atan)=105, \old(pi)=111, \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] [L251] double x = 0.0; [L252] double y = __VERIFIER_nondet_double(); [L254] COND TRUE 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=0, y=117, zero_atan2=0] [L256] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=0, \old(y)=117, 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)=0, \old(y)=117, 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=0, y=117, 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)=0, \old(y)=117, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, lx=112, 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=0, y=117, 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)=0, \old(y)=117, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, hy=2, lx=112, 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=0, y=117, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [\old(x)=0, \old(y)=117, aT_atan={99:0}, atanhi_atan={101:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, hy=2, lx=112, 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=0, y=117, zero_atan2=0] [L256] RET, EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=110, 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=0, y=117, zero_atan2=0] [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -pi_o_2 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=110, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=117, zero_atan2=0] [L260] __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=110, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=117, 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 13:34:25,561 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:34:25,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:34:25,572 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:34:25,572 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:34:25,573 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:34:25,573 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:34:25,575 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:34:25,576 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:34:25,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:34:25,577 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:34:25,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:34:25,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:34:25,579 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:34:25,580 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:34:25,580 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:34:25,581 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:34:25,583 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:34:25,584 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:34:25,585 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:34:25,586 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:34:25,587 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:34:25,588 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:34:25,589 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:34:25,589 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:34:25,589 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:34:25,591 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:34:25,591 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:34:25,592 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:34:25,593 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:34:25,593 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:34:25,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:34:25,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:34:25,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:34:25,595 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:34:25,595 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:34:25,596 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 13:34:25,606 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:34:25,607 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:34:25,607 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:34:25,607 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:34:25,608 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:34:25,608 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:34:25,608 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:34:25,608 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:34:25,608 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 13:34:25,609 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 13:34:25,610 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:34:25,611 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:34:25,611 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:34:25,611 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:34:25,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:34:25,612 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:34:25,612 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:34:25,612 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:34:25,612 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:34:25,612 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:34:25,613 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:34:25,613 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:34:25,613 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 13:34:25,613 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:34:25,613 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 13:34:25,613 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 13:34:25,613 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_2ecf0619-8f68-446b-8934-267297a2e5da/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 -> 427f5a1297639616b7c4f6533641105ea064cfe8 [2018-11-28 13:34:25,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:34:25,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:34:25,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:34:25,653 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:34:25,653 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:34:25,654 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0662b_true-unreach-call.c [2018-11-28 13:34:25,702 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/88639bcc5/beea6976b39747e9a7780584d746c05f/FLAGa6ed0f23f [2018-11-28 13:34:26,034 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:34:26,035 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/sv-benchmarks/c/float-newlib/double_req_bl_0662b_true-unreach-call.c [2018-11-28 13:34:26,039 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/88639bcc5/beea6976b39747e9a7780584d746c05f/FLAGa6ed0f23f [2018-11-28 13:34:26,458 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/data/88639bcc5/beea6976b39747e9a7780584d746c05f [2018-11-28 13:34:26,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:34:26,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:34:26,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:26,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:34:26,465 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:34:26,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e09b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26, skipping insertion in model container [2018-11-28 13:34:26,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:34:26,489 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:34:26,643 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:26,651 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:34:26,700 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:34:26,723 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:34:26,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26 WrapperNode [2018-11-28 13:34:26,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:34:26,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:34:26,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:34:26,725 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:34:26,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:34:26,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:34:26,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:34:26,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:34:26,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... [2018-11-28 13:34:26,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:34:26,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:34:26,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:34:26,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:34:26,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:34:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 13:34:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 13:34:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:34:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:34:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-11-28 13:34:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-11-28 13:34:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 13:34:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 13:34:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:34:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:34:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-11-28 13:34:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:34:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-11-28 13:34:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-11-28 13:34:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 13:34:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:34:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:34:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 13:34:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:34:27,262 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:27,455 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:27,538 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:27,568 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:28,848 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:28,867 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:28,914 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:28,950 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:34,170 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:34:45,382 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:34:45,382 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 13:34:45,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:45 BoogieIcfgContainer [2018-11-28 13:34:45,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:34:45,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:34:45,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:34:45,386 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:34:45,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:34:26" (1/3) ... [2018-11-28 13:34:45,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cc6286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:45, skipping insertion in model container [2018-11-28 13:34:45,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:34:26" (2/3) ... [2018-11-28 13:34:45,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cc6286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:34:45, skipping insertion in model container [2018-11-28 13:34:45,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:34:45" (3/3) ... [2018-11-28 13:34:45,389 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b_true-unreach-call.c [2018-11-28 13:34:45,394 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:34:45,399 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:34:45,408 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:34:45,427 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:34:45,428 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:34:45,428 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:34:45,428 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:34:45,428 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:34:45,428 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:34:45,428 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:34:45,428 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:34:45,428 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:34:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-11-28 13:34:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 13:34:45,444 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:45,445 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 13:34:45,447 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:34:45,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:45,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1380022172, now seen corresponding path program 1 times [2018-11-28 13:34:45,454 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:34:45,454 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:34:45,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:45,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:45,690 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 13:34:45,691 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:45,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:45,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:34:45,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:34:45,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:34:45,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:34:45,718 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2018-11-28 13:34:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:45,742 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2018-11-28 13:34:45,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:34:45,743 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 13:34:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:45,751 INFO L225 Difference]: With dead ends: 197 [2018-11-28 13:34:45,751 INFO L226 Difference]: Without dead ends: 98 [2018-11-28 13:34:45,754 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 13:34:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-28 13:34:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-11-28 13:34:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-28 13:34:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2018-11-28 13:34:45,788 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2018-11-28 13:34:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:45,789 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2018-11-28 13:34:45,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:34:45,789 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2018-11-28 13:34:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:34:45,790 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:45,790 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 13:34:45,790 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:34:45,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:45,791 INFO L82 PathProgramCache]: Analyzing trace with hash 959017453, now seen corresponding path program 1 times [2018-11-28 13:34:45,791 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:34:45,791 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:34:45,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:46,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:46,326 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:34:46,328 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:34:46,328 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:34:46,329 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:34:46,334 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 73 treesize of output 98 [2018-11-28 13:34:46,438 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2018-11-28 13:34:46,483 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:34:46,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 72 [2018-11-28 13:34:46,603 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2018-11-28 13:34:46,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 15 treesize of output 16 [2018-11-28 13:34:46,617 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:46,649 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:46,682 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 39 treesize of output 29 [2018-11-28 13:34:46,693 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 29 treesize of output 14 [2018-11-28 13:34:46,693 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:46,707 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:46,733 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 25 treesize of output 19 [2018-11-28 13:34:46,741 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 19 treesize of output 5 [2018-11-28 13:34:46,741 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-28 13:34:46,746 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:34:46,759 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 13:34:46,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 13:34:46,790 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 5 variables, input treesize:97, output treesize:43 [2018-11-28 13:34:47,149 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 13:34:47,149 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:47,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:47,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 13:34:47,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 13:34:47,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:34:47,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:34:47,164 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand 10 states. [2018-11-28 13:34:48,431 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-28 13:34:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:34:59,053 INFO L93 Difference]: Finished difference Result 136 states and 188 transitions. [2018-11-28 13:34:59,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:34:59,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-11-28 13:34:59,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:34:59,057 INFO L225 Difference]: With dead ends: 136 [2018-11-28 13:34:59,057 INFO L226 Difference]: Without dead ends: 117 [2018-11-28 13:34:59,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-28 13:34:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-28 13:34:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2018-11-28 13:34:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-28 13:34:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2018-11-28 13:34:59,072 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 21 [2018-11-28 13:34:59,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:34:59,072 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2018-11-28 13:34:59,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 13:34:59,072 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2018-11-28 13:34:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:34:59,073 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:34:59,073 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 13:34:59,073 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:34:59,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:34:59,074 INFO L82 PathProgramCache]: Analyzing trace with hash -322982793, now seen corresponding path program 1 times [2018-11-28 13:34:59,074 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:34:59,074 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:34:59,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:34:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:34:59,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:34:59,527 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-11-28 13:34:59,600 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 13:34:59,600 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:34:59,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:34:59,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:34:59,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:34:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:34:59,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:34:59,616 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand 9 states. [2018-11-28 13:35:00,295 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-11-28 13:35:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:05,332 INFO L93 Difference]: Finished difference Result 203 states and 265 transitions. [2018-11-28 13:35:05,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:35:05,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-28 13:35:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:05,333 INFO L225 Difference]: With dead ends: 203 [2018-11-28 13:35:05,333 INFO L226 Difference]: Without dead ends: 103 [2018-11-28 13:35:05,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-11-28 13:35:05,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-11-28 13:35:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2018-11-28 13:35:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-28 13:35:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 130 transitions. [2018-11-28 13:35:05,343 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 130 transitions. Word has length 26 [2018-11-28 13:35:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:05,344 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 130 transitions. [2018-11-28 13:35:05,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:35:05,344 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 130 transitions. [2018-11-28 13:35:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:35:05,345 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:05,345 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 13:35:05,345 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:05,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:05,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1132329419, now seen corresponding path program 1 times [2018-11-28 13:35:05,347 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:05,347 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:35:05,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:05,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:05,615 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:35:05,616 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:35:05,617 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:35:05,617 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:35:05,618 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 73 treesize of output 98 [2018-11-28 13:35:05,738 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 66 [2018-11-28 13:35:05,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 38 treesize of output 32 [2018-11-28 13:35:05,780 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:35:05,806 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:35:05,850 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 25 treesize of output 19 [2018-11-28 13:35:05,857 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 19 treesize of output 5 [2018-11-28 13:35:05,857 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 13:35:05,861 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:35:05,880 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 24 treesize of output 18 [2018-11-28 13:35:05,886 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 18 treesize of output 4 [2018-11-28 13:35:05,886 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-28 13:35:05,889 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:35:05,899 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 13:35:05,911 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 13:35:05,911 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:82, output treesize:27 [2018-11-28 13:35:06,027 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 13:35:06,027 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:06,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:06,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:35:06,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:35:06,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:35:06,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:35:06,038 INFO L87 Difference]: Start difference. First operand 101 states and 130 transitions. Second operand 7 states. [2018-11-28 13:35:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:10,196 INFO L93 Difference]: Finished difference Result 195 states and 253 transitions. [2018-11-28 13:35:10,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:35:10,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 13:35:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:10,198 INFO L225 Difference]: With dead ends: 195 [2018-11-28 13:35:10,198 INFO L226 Difference]: Without dead ends: 95 [2018-11-28 13:35:10,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:35:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-11-28 13:35:10,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-11-28 13:35:10,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-11-28 13:35:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 120 transitions. [2018-11-28 13:35:10,208 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 120 transitions. Word has length 26 [2018-11-28 13:35:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:10,209 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 120 transitions. [2018-11-28 13:35:10,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:35:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2018-11-28 13:35:10,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:35:10,209 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:10,210 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 13:35:10,210 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:10,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:10,210 INFO L82 PathProgramCache]: Analyzing trace with hash -442139595, now seen corresponding path program 1 times [2018-11-28 13:35:10,210 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:10,210 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 13:35:10,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:10,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:11,019 WARN L180 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:11,352 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:11,678 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 13:35:12,025 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 13:35:12,028 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 13:35:12,028 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:12,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:12,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:35:12,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:35:12,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:35:12,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:35:12,038 INFO L87 Difference]: Start difference. First operand 95 states and 120 transitions. Second operand 7 states. [2018-11-28 13:35:14,544 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:14,788 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:19,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:19,977 INFO L93 Difference]: Finished difference Result 102 states and 126 transitions. [2018-11-28 13:35:19,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:35:19,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 13:35:19,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:19,979 INFO L225 Difference]: With dead ends: 102 [2018-11-28 13:35:19,979 INFO L226 Difference]: Without dead ends: 95 [2018-11-28 13:35:19,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:35:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-11-28 13:35:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-11-28 13:35:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-11-28 13:35:19,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 119 transitions. [2018-11-28 13:35:19,990 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 119 transitions. Word has length 26 [2018-11-28 13:35:19,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:19,990 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 119 transitions. [2018-11-28 13:35:19,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:35:19,990 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 119 transitions. [2018-11-28 13:35:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:35:19,991 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:19,991 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 13:35:19,991 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:19,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1332867767, now seen corresponding path program 1 times [2018-11-28 13:35:19,992 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:19,992 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:35:20,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:20,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:20,289 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 13:35:20,289 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:20,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:20,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:35:20,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:35:20,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:35:20,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:35:20,300 INFO L87 Difference]: Start difference. First operand 95 states and 119 transitions. Second operand 6 states. [2018-11-28 13:35:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:23,941 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2018-11-28 13:35:23,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:35:23,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-28 13:35:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:23,942 INFO L225 Difference]: With dead ends: 102 [2018-11-28 13:35:23,942 INFO L226 Difference]: Without dead ends: 93 [2018-11-28 13:35:23,943 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 13:35:23,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-11-28 13:35:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-11-28 13:35:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-11-28 13:35:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2018-11-28 13:35:23,953 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 26 [2018-11-28 13:35:23,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:23,954 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2018-11-28 13:35:23,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:35:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2018-11-28 13:35:23,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 13:35:23,955 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:23,955 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 13:35:23,955 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:23,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:23,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1015228023, now seen corresponding path program 1 times [2018-11-28 13:35:23,955 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:23,956 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/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 13:35:23,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:24,175 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:24,703 WARN L180 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:25,181 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:25,408 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 13:35:25,408 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:25,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:25,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:35:25,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:35:25,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:35:25,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:35:25,419 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand 7 states. [2018-11-28 13:35:28,409 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:29,211 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 13:35:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:33,709 INFO L93 Difference]: Finished difference Result 99 states and 120 transitions. [2018-11-28 13:35:33,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:35:33,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-28 13:35:33,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:33,711 INFO L225 Difference]: With dead ends: 99 [2018-11-28 13:35:33,711 INFO L226 Difference]: Without dead ends: 91 [2018-11-28 13:35:33,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:35:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-11-28 13:35:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-11-28 13:35:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-28 13:35:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2018-11-28 13:35:33,723 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 28 [2018-11-28 13:35:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:33,723 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2018-11-28 13:35:33,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:35:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2018-11-28 13:35:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 13:35:33,724 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:33,724 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, 1] [2018-11-28 13:35:33,725 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:33,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:33,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1854768899, now seen corresponding path program 1 times [2018-11-28 13:35:33,725 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:33,725 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-28 13:35:33,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:34,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:34,547 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-11-28 13:35:34,682 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 13:35:34,682 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:34,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:34,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 13:35:34,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 13:35:34,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:35:34,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:35:34,694 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand 11 states. [2018-11-28 13:35:35,615 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-11-28 13:35:35,860 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2018-11-28 13:35:36,561 WARN L180 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2018-11-28 13:35:36,952 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2018-11-28 13:35:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:44,507 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2018-11-28 13:35:44,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:35:44,508 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-11-28 13:35:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:44,509 INFO L225 Difference]: With dead ends: 100 [2018-11-28 13:35:44,509 INFO L226 Difference]: Without dead ends: 94 [2018-11-28 13:35:44,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2018-11-28 13:35:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-11-28 13:35:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2018-11-28 13:35:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-28 13:35:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 111 transitions. [2018-11-28 13:35:44,520 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 111 transitions. Word has length 29 [2018-11-28 13:35:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:44,520 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 111 transitions. [2018-11-28 13:35:44,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 13:35:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 111 transitions. [2018-11-28 13:35:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 13:35:44,521 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:44,521 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, 1, 1, 1] [2018-11-28 13:35:44,522 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:44,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:44,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1404759961, now seen corresponding path program 1 times [2018-11-28 13:35:44,522 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:44,522 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-28 13:35:44,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:44,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:45,207 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 13:35:45,207 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:45,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:45,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:35:45,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:35:45,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:35:45,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:35:45,221 INFO L87 Difference]: Start difference. First operand 91 states and 111 transitions. Second operand 9 states. [2018-11-28 13:35:46,061 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-28 13:35:46,403 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-28 13:35:46,758 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2018-11-28 13:35:47,079 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-11-28 13:35:50,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:50,852 INFO L93 Difference]: Finished difference Result 109 states and 129 transitions. [2018-11-28 13:35:50,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:35:50,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-11-28 13:35:50,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:50,853 INFO L225 Difference]: With dead ends: 109 [2018-11-28 13:35:50,853 INFO L226 Difference]: Without dead ends: 90 [2018-11-28 13:35:50,853 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2018-11-28 13:35:50,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-28 13:35:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2018-11-28 13:35:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-11-28 13:35:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2018-11-28 13:35:50,864 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 31 [2018-11-28 13:35:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:50,864 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2018-11-28 13:35:50,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:35:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2018-11-28 13:35:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 13:35:50,865 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:50,865 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, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:50,865 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:50,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:50,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1356254058, now seen corresponding path program 1 times [2018-11-28 13:35:50,865 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:50,866 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-28 13:35:50,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:51,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:51,150 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 13:35:51,150 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:35:51,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:51,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:35:51,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:35:51,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:35:51,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:35:51,162 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand 6 states. [2018-11-28 13:35:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:54,153 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2018-11-28 13:35:54,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:35:54,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-11-28 13:35:54,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:54,155 INFO L225 Difference]: With dead ends: 93 [2018-11-28 13:35:54,155 INFO L226 Difference]: Without dead ends: 85 [2018-11-28 13:35:54,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 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 13:35:54,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-28 13:35:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-11-28 13:35:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-28 13:35:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2018-11-28 13:35:54,163 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 34 [2018-11-28 13:35:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:54,163 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2018-11-28 13:35:54,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:35:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2018-11-28 13:35:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 13:35:54,164 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:54,164 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:54,164 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:35:54,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:54,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1524489644, now seen corresponding path program 1 times [2018-11-28 13:35:54,165 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:35:54,165 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-28 13:35:54,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:54,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:54,876 WARN L180 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 13:35:55,869 WARN L180 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-28 13:35:55,961 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 66 treesize of output 60 [2018-11-28 13:35:56,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 60 treesize of output 55 [2018-11-28 13:35:56,098 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 37 treesize of output 27 [2018-11-28 13:35:56,099 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:35:56,194 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:35:56,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:35:58,482 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 13:35:58,482 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:111, output treesize:72 [2018-11-28 13:35:59,266 WARN L180 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-11-28 13:35:59,717 WARN L180 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-11-28 13:35:59,951 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-28 13:36:00,109 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-28 13:36:00,116 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 13:36:00,116 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:36:00,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:36:00,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:36:00,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:36:00,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:36:00,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:36:00,129 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand 9 states. [2018-11-28 13:36:05,007 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 43 [2018-11-28 13:36:05,252 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-11-28 13:36:08,405 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-11-28 13:36:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:36:08,696 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2018-11-28 13:36:08,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:36:08,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-11-28 13:36:08,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:36:08,698 INFO L225 Difference]: With dead ends: 99 [2018-11-28 13:36:08,698 INFO L226 Difference]: Without dead ends: 85 [2018-11-28 13:36:08,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:36:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-28 13:36:08,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2018-11-28 13:36:08,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 13:36:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2018-11-28 13:36:08,708 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 35 [2018-11-28 13:36:08,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:36:08,709 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2018-11-28 13:36:08,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:36:08,709 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2018-11-28 13:36:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 13:36:08,709 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:36:08,710 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, 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, 1] [2018-11-28 13:36:08,710 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:36:08,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:36:08,710 INFO L82 PathProgramCache]: Analyzing trace with hash 558190994, now seen corresponding path program 1 times [2018-11-28 13:36:08,710 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:36:08,710 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-11-28 13:36:08,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:36:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:36:09,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:36:09,745 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 54 treesize of output 48 [2018-11-28 13:36:09,752 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-28 13:36:09,752 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:36:09,756 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 13:36:09,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 13:36:09,767 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:34 [2018-11-28 13:36:25,055 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 13:36:36,705 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_19| (_ BitVec 64)) (v_arrayElimCell_9 (_ BitVec 32)) (__ieee754_atan2_~y (_ FloatingPoint 11 53)) (v_prenex_68 (_ BitVec 64))) (and (= (fp.div roundNearestTiesToEven __ieee754_atan2_~y |c___ieee754_atan2_#in~x|) (fp ((_ extract 63 63) |v_q#valueAsBitvector_19|) ((_ extract 62 52) |v_q#valueAsBitvector_19|) ((_ extract 51 0) |v_q#valueAsBitvector_19|))) (= (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_19|)) v_arrayElimCell_9))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) v_prenex_68) ((_ extract 62 52) v_prenex_68) ((_ extract 51 0) v_prenex_68))) (not (bvsge (bvand (_ bv2147483647 32) ((_ extract 63 32) v_prenex_68)) (_ bv1141899264 32))))) is different from false [2018-11-28 13:36:36,733 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 13:36:36,733 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:36:36,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:36:36,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 13:36:36,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 13:36:36,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 13:36:36,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=129, Unknown=6, NotChecked=22, Total=182 [2018-11-28 13:36:36,752 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand 14 states. [2018-11-28 13:37:16,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:37:16,436 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2018-11-28 13:37:16,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 13:37:16,757 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2018-11-28 13:37:16,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:37:16,757 INFO L225 Difference]: With dead ends: 104 [2018-11-28 13:37:16,758 INFO L226 Difference]: Without dead ends: 87 [2018-11-28 13:37:16,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=63, Invalid=315, Unknown=6, NotChecked=36, Total=420 [2018-11-28 13:37:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-11-28 13:37:16,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2018-11-28 13:37:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 13:37:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2018-11-28 13:37:16,768 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 57 [2018-11-28 13:37:16,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:37:16,768 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2018-11-28 13:37:16,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 13:37:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2018-11-28 13:37:16,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 13:37:16,769 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:37:16,769 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, 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, 1] [2018-11-28 13:37:16,769 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:37:16,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:37:16,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1092137385, now seen corresponding path program 1 times [2018-11-28 13:37:16,770 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:37:16,770 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-11-28 13:37:16,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:37:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:37:17,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:37:18,446 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 66 treesize of output 60 [2018-11-28 13:37:18,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 60 treesize of output 55 [2018-11-28 13:37:18,512 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 37 treesize of output 27 [2018-11-28 13:37:18,512 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:37:18,518 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:37:18,522 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:37:18,536 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 13:37:18,536 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:85, output treesize:46 [2018-11-28 13:37:21,086 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64)) (|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (not (bvsgt (bvashr (bvadd (bvneg (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))) (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))) (_ bv20 32)) (_ bv60 32))) (= |c___ieee754_atan2_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= |c___ieee754_atan2_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|))))) (exists ((|v_q#valueAsBitvector_22| (_ BitVec 64)) (|v_q#valueAsBitvector_23| (_ BitVec 64))) (let ((.cse1 (fp.div roundNearestTiesToEven |c___ieee754_atan2_#in~y| |c___ieee754_atan2_#in~x|))) (and (= |c___ieee754_atan2_#t~ret41| (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_22|)) ((_ extract 31 0) |v_q#valueAsBitvector_23|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) (= .cse1 (fp ((_ extract 63 63) |v_q#valueAsBitvector_23|) ((_ extract 62 52) |v_q#valueAsBitvector_23|) ((_ extract 51 0) |v_q#valueAsBitvector_23|))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_22|) ((_ extract 62 52) |v_q#valueAsBitvector_22|) ((_ extract 51 0) |v_q#valueAsBitvector_22|)) .cse1))))) is different from false [2018-11-28 13:37:28,413 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_22| (_ BitVec 64)) (v_prenex_70 (_ BitVec 64)) (v_prenex_69 (_ BitVec 64)) (|v_q#valueAsBitvector_23| (_ BitVec 64))) (let ((.cse0 (fp.div roundNearestTiesToEven |c___ieee754_atan2_#in~y| |c___ieee754_atan2_#in~x|)) (.cse1 (fp ((_ extract 63 63) v_prenex_70) ((_ extract 62 52) v_prenex_70) ((_ extract 51 0) v_prenex_70)))) (and (not (= ((_ extract 31 0) v_prenex_70) (_ bv0 32))) (= (bvadd (bvand (_ bv2147483647 32) ((_ extract 63 32) v_prenex_69)) (_ bv2148532224 32)) (_ bv0 32)) (= .cse0 (fp ((_ extract 63 63) |v_q#valueAsBitvector_23|) ((_ extract 62 52) |v_q#valueAsBitvector_23|) ((_ extract 51 0) |v_q#valueAsBitvector_23|))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_22|) ((_ extract 62 52) |v_q#valueAsBitvector_22|) ((_ extract 51 0) |v_q#valueAsBitvector_22|)) .cse0) (= .cse1 (let ((.cse2 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_22|)) ((_ extract 31 0) |v_q#valueAsBitvector_23|)))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2)))) (= .cse1 (fp ((_ extract 63 63) v_prenex_69) ((_ extract 62 52) v_prenex_69) ((_ extract 51 0) v_prenex_69)))))) (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64)) (|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (not (bvsgt (bvashr (bvadd (bvneg (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))) (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))) (_ bv20 32)) (_ bv60 32))) (= |c___ieee754_atan2_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= |c___ieee754_atan2_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|)))))) is different from false [2018-11-28 13:37:30,683 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_22| (_ BitVec 64)) (v_prenex_70 (_ BitVec 64)) (v_prenex_69 (_ BitVec 64)) (|v_q#valueAsBitvector_23| (_ BitVec 64))) (let ((.cse0 (fp.div roundNearestTiesToEven |c___ieee754_atan2_#in~y| |c___ieee754_atan2_#in~x|)) (.cse1 (fp ((_ extract 63 63) v_prenex_70) ((_ extract 62 52) v_prenex_70) ((_ extract 51 0) v_prenex_70)))) (and (not (= ((_ extract 31 0) v_prenex_70) (_ bv0 32))) (= (bvadd (bvand (_ bv2147483647 32) ((_ extract 63 32) v_prenex_69)) (_ bv2148532224 32)) (_ bv0 32)) (= .cse0 (fp ((_ extract 63 63) |v_q#valueAsBitvector_23|) ((_ extract 62 52) |v_q#valueAsBitvector_23|) ((_ extract 51 0) |v_q#valueAsBitvector_23|))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_22|) ((_ extract 62 52) |v_q#valueAsBitvector_22|) ((_ extract 51 0) |v_q#valueAsBitvector_22|)) .cse0) (= .cse1 (let ((.cse2 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_22|)) ((_ extract 31 0) |v_q#valueAsBitvector_23|)))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2)))) (= .cse1 (fp ((_ extract 63 63) v_prenex_69) ((_ extract 62 52) v_prenex_69) ((_ extract 51 0) v_prenex_69)))))) (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64)) (|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (not (bvsgt (bvashr (bvadd (bvneg (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))) (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))) (_ bv20 32)) (_ bv60 32))) (= |c___ieee754_atan2_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= |c___ieee754_atan2_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|)))))) is different from true [2018-11-28 13:37:30,727 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 13:37:30,727 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:37:30,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:37:30,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-11-28 13:37:30,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-28 13:37:30,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-28 13:37:30,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=332, Unknown=3, NotChecked=74, Total=462 [2018-11-28 13:37:30,745 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand 22 states. [2018-11-28 13:37:32,672 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-11-28 13:37:33,904 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-11-28 13:37:34,729 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-28 13:37:45,714 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64)) (|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (not (bvsgt (bvashr (bvadd (bvneg (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))) (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))) (_ bv20 32)) (_ bv60 32))) (= c___ieee754_atan2_~y (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= c___ieee754_atan2_~x (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|))))) (exists ((|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (= c___ieee754_atan2_~hx~1 ((_ extract 63 32) |v_q#valueAsBitvector_20|)) (= c___ieee754_atan2_~x (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|))))) (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64)) (|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (= c___ieee754_atan2_~y (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= c___ieee754_atan2_~x (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|))) (= c___ieee754_atan2_~k~0 (bvashr (bvadd (bvneg (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))) (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))) (_ bv20 32))))) (= c___ieee754_atan2_~y |c___ieee754_atan2_#in~y|) (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64)) (|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (not (bvsgt (bvashr (bvadd (bvneg (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))) (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))) (_ bv20 32)) (_ bv60 32))) (= |c___ieee754_atan2_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= |c___ieee754_atan2_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|))))) (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64))) (and (= c___ieee754_atan2_~y (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= c___ieee754_atan2_~iy~0 (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_21|))))) (exists ((|v_q#valueAsBitvector_20| (_ BitVec 64))) (and (= c___ieee754_atan2_~x (fp ((_ extract 63 63) |v_q#valueAsBitvector_20|) ((_ extract 62 52) |v_q#valueAsBitvector_20|) ((_ extract 51 0) |v_q#valueAsBitvector_20|))) (= c___ieee754_atan2_~ix~1 (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_20|))))) (= c___ieee754_atan2_~x |c___ieee754_atan2_#in~x|) (exists ((|v_q#valueAsBitvector_21| (_ BitVec 64))) (and (= c___ieee754_atan2_~y (fp ((_ extract 63 63) |v_q#valueAsBitvector_21|) ((_ extract 62 52) |v_q#valueAsBitvector_21|) ((_ extract 51 0) |v_q#valueAsBitvector_21|))) (= c___ieee754_atan2_~hy~0 ((_ extract 63 32) |v_q#valueAsBitvector_21|)))) (exists ((|v_q#valueAsBitvector_22| (_ BitVec 64)) (|v_q#valueAsBitvector_23| (_ BitVec 64))) (let ((.cse1 (fp.div roundNearestTiesToEven |c___ieee754_atan2_#in~y| |c___ieee754_atan2_#in~x|))) (and (= |c___ieee754_atan2_#t~ret41| (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_q#valueAsBitvector_22|)) ((_ extract 31 0) |v_q#valueAsBitvector_23|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) (= .cse1 (fp ((_ extract 63 63) |v_q#valueAsBitvector_23|) ((_ extract 62 52) |v_q#valueAsBitvector_23|) ((_ extract 51 0) |v_q#valueAsBitvector_23|))) (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_22|) ((_ extract 62 52) |v_q#valueAsBitvector_22|) ((_ extract 51 0) |v_q#valueAsBitvector_22|)) .cse1))))) is different from false [2018-11-28 13:37:46,692 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2018-11-28 13:37:51,819 WARN L180 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-11-28 13:38:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:38:15,382 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2018-11-28 13:38:15,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-28 13:38:15,700 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-11-28 13:38:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:38:15,701 INFO L225 Difference]: With dead ends: 105 [2018-11-28 13:38:15,701 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 13:38:15,701 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=137, Invalid=741, Unknown=4, NotChecked=174, Total=1056 [2018-11-28 13:38:15,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 13:38:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 83. [2018-11-28 13:38:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 13:38:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2018-11-28 13:38:15,715 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 57 [2018-11-28 13:38:15,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:38:15,715 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2018-11-28 13:38:15,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-28 13:38:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2018-11-28 13:38:15,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 13:38:15,716 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:38:15,716 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, 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, 1, 1] [2018-11-28 13:38:15,716 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:38:15,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:38:15,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1846921442, now seen corresponding path program 1 times [2018-11-28 13:38:15,716 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:38:15,717 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecf0619-8f68-446b-8934-267297a2e5da/bin-2019/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2018-11-28 13:38:15,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:38:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:38:16,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:38:17,010 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:38:17,011 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:38:17,012 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 33 treesize of output 43 [2018-11-28 13:38:17,048 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:38:17,055 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 24 treesize of output 24 [2018-11-28 13:38:17,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:38:17,066 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 24 treesize of output 18 [2018-11-28 13:38:17,069 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 18 treesize of output 4 [2018-11-28 13:38:17,069 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 13:38:17,072 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:38:17,074 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 13:38:17,084 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 13:38:17,084 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-28 13:38:17,169 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 13:38:17,169 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:38:17,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:38:17,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:38:17,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:38:17,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:38:17,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:38:17,189 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 7 states. [2018-11-28 13:38:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:38:18,569 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2018-11-28 13:38:18,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:38:18,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2018-11-28 13:38:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:38:18,570 INFO L225 Difference]: With dead ends: 83 [2018-11-28 13:38:18,570 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:38:18,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:38:18,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:38:18,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:38:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:38:18,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:38:18,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2018-11-28 13:38:18,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:38:18,572 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:38:18,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:38:18,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:38:18,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:38:18,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:40:01,735 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-28 13:40:01,736 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 13:40:01,738 INFO L168 Benchmark]: Toolchain (without parser) took 335276.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 946.0 MB in the beginning and 884.7 MB in the end (delta: 61.2 MB). Peak memory consumption was 269.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:40:01,739 INFO L168 Benchmark]: CDTParser took 0.17 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 13:40:01,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.72 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 924.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:40:01,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:40:01,740 INFO L168 Benchmark]: Boogie Preprocessor took 36.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:40:01,740 INFO L168 Benchmark]: RCFGBuilder took 18560.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:40:01,741 INFO L168 Benchmark]: TraceAbstraction took 316354.01 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 884.7 MB in the end (delta: 154.0 MB). Peak memory consumption was 252.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:40:01,743 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 261.72 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 924.5 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 60.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 924.5 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 18560.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 316354.01 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 98.0 MB). Free memory was 1.0 GB in the beginning and 884.7 MB in the end (delta: 154.0 MB). Peak memory consumption was 252.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 260]: 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...