./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0661b_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_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 f7b03c010cc5bb74fc451f0f165676fac13dd665 ...................................................................................................................................................................................................................................................................................................................................................................... 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_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 f7b03c010cc5bb74fc451f0f165676fac13dd665 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:23:11,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:23:11,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:23:11,539 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:23:11,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:23:11,540 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:23:11,541 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:23:11,542 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:23:11,543 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:23:11,544 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:23:11,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:23:11,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:23:11,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:23:11,546 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:23:11,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:23:11,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:23:11,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:23:11,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:23:11,549 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:23:11,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:23:11,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:23:11,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:23:11,552 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:23:11,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:23:11,552 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:23:11,553 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:23:11,553 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:23:11,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:23:11,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:23:11,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:23:11,555 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:23:11,555 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:23:11,555 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:23:11,556 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:23:11,556 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:23:11,556 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:23:11,557 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:23:11,566 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:23:11,567 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:23:11,567 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:23:11,567 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:23:11,568 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:23:11,568 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:23:11,568 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:23:11,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:23:11,569 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:23:11,570 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:23:11,570 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:23:11,570 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:23:11,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:23:11,570 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:23:11,570 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:23:11,571 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:23:11,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:23:11,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:23:11,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:23:11,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:23:11,571 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:23:11,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:23:11,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:23:11,572 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_cddec89f-ce97-4336-8679-7ea1142a85e5/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 -> f7b03c010cc5bb74fc451f0f165676fac13dd665 [2018-11-28 12:23:11,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:23:11,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:23:11,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:23:11,608 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:23:11,609 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:23:11,609 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0661b_true-unreach-call.c [2018-11-28 12:23:11,655 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/334eeadfd/88daa352c48d4831bffbbfed25f10c44/FLAG58e3272cd [2018-11-28 12:23:12,007 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:23:12,007 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/sv-benchmarks/c/float-newlib/double_req_bl_0661b_true-unreach-call.c [2018-11-28 12:23:12,013 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/334eeadfd/88daa352c48d4831bffbbfed25f10c44/FLAG58e3272cd [2018-11-28 12:23:12,417 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/334eeadfd/88daa352c48d4831bffbbfed25f10c44 [2018-11-28 12:23:12,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:23:12,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:23:12,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:23:12,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:23:12,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:23:12,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@878876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12, skipping insertion in model container [2018-11-28 12:23:12,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:23:12,451 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:23:12,601 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:23:12,607 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:23:12,647 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:23:12,712 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:23:12,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12 WrapperNode [2018-11-28 12:23:12,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:23:12,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:23:12,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:23:12,713 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:23:12,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:23:12,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:23:12,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:23:12,732 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:23:12,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... [2018-11-28 12:23:12,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:23:12,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:23:12,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:23:12,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:23:12,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-28 12:23:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-28 12:23:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:23:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:23:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-11-28 12:23:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-11-28 12:23:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 12:23:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:23:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 12:23:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:23:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-11-28 12:23:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:23:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 12:23:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:23:13,262 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:23:13,263 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 12:23:13,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:23:13 BoogieIcfgContainer [2018-11-28 12:23:13,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:23:13,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:23:13,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:23:13,266 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:23:13,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:23:12" (1/3) ... [2018-11-28 12:23:13,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4f0a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:23:13, skipping insertion in model container [2018-11-28 12:23:13,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:12" (2/3) ... [2018-11-28 12:23:13,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4f0a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:23:13, skipping insertion in model container [2018-11-28 12:23:13,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:23:13" (3/3) ... [2018-11-28 12:23:13,269 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b_true-unreach-call.c [2018-11-28 12:23:13,277 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:23:13,283 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:23:13,296 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:23:13,318 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:23:13,318 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:23:13,318 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:23:13,318 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:23:13,318 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:23:13,318 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:23:13,319 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:23:13,319 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:23:13,319 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:23:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-11-28 12:23:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 12:23:13,335 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:13,336 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] [2018-11-28 12:23:13,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:13,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:13,341 INFO L82 PathProgramCache]: Analyzing trace with hash 913677384, now seen corresponding path program 1 times [2018-11-28 12:23:13,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:23:13,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:23:13,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:23:13,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:13,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:23:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:23:13,452 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 12:23:13,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:23:13,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:23:13,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:23:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:23:13,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:23:13,467 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 2 states. [2018-11-28 12:23:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:23:13,487 INFO L93 Difference]: Finished difference Result 215 states and 339 transitions. [2018-11-28 12:23:13,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:23:13,488 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-28 12:23:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:23:13,494 INFO L225 Difference]: With dead ends: 215 [2018-11-28 12:23:13,495 INFO L226 Difference]: Without dead ends: 107 [2018-11-28 12:23:13,497 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 12:23:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-11-28 12:23:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-11-28 12:23:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-28 12:23:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2018-11-28 12:23:13,528 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2018-11-28 12:23:13,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:23:13,528 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2018-11-28 12:23:13,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:23:13,529 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2018-11-28 12:23:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:23:13,530 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:13,530 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] [2018-11-28 12:23:13,530 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:13,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:13,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1713483969, now seen corresponding path program 1 times [2018-11-28 12:23:13,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:23:13,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:23:13,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:23:13,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:13,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:23:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:23:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:23:13,627 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:23:13,652 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 109 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 12:23:13,653 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 99 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 12:23:13,653 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 96 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-11-28 12:23:13,653 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 103 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2018-11-28 12:23:13,653 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 93 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 12:23:13,653 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 119 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2018-11-28 12:23:13,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:23:13 BoogieIcfgContainer [2018-11-28 12:23:13,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:23:13,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:23:13,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:23:13,667 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:23:13,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:23:13" (3/4) ... [2018-11-28 12:23:13,670 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:23:13,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:23:13,671 INFO L168 Benchmark]: Toolchain (without parser) took 1250.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -77.5 MB). Peak memory consumption was 53.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:23:13,672 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:23:13,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:23:13,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:23:13,673 INFO L168 Benchmark]: Boogie Preprocessor took 42.90 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 12:23:13,674 INFO L168 Benchmark]: RCFGBuilder took 487.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:23:13,674 INFO L168 Benchmark]: TraceAbstraction took 402.84 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:23:13,675 INFO L168 Benchmark]: Witness Printer took 3.83 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 12:23:13,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 487.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 402.84 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.83 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 109 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 99 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 96 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 103 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 93 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 119 could not be translated for associated CType ARRAY#_4_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 271]: 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 270. 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)=114, \old(one_atan)=104, \old(pi)=110, \old(pi_lo_atan2)=102, \old(pi_o_2)=89, \old(pi_o_4)=107, \old(tiny_atan2)=118, \old(zero_atan2)=95, aT_atan={97:0}, atanhi_atan={100:0}, 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] [L264] double x = __VERIFIER_nondet_double(); [L265] double y = 0.0; VAL [aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L267] COND TRUE x > 0.0 VAL [aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L268] CALL, EXPR __ieee754_atan2(y, x) VAL [\old(x)=108, \old(y)=0, aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [\old(x)=108, \old(y)=0, aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [\old(x)=108, \old(y)=0, aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, lx=111, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [\old(x)=108, \old(y)=0, aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, hy=2, lx=111, ly=91, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [\old(x)=108, \old(y)=0, aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=5, hy=2, lx=111, ly=91, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L268] RET, EXPR __ieee754_atan2(y, x) VAL [__ieee754_atan2(y, x)=116, aT_atan={97:0}, atanhi_atan={100:0}, atanlo_atan={90:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L268] double res = __ieee754_atan2(y, x); [L270] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={97:0}, atanhi_atan={100:0}, 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=116, res == 0.0 && __signbit_double(res) == 0=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] [L270] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L271] __VERIFIER_error() VAL [aT_atan={97:0}, atanhi_atan={100:0}, 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=116, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=108, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 112 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 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=112occurred 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, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 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 12:23:15,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:23:15,185 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:23:15,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:23:15,194 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:23:15,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:23:15,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:23:15,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:23:15,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:23:15,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:23:15,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:23:15,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:23:15,201 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:23:15,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:23:15,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:23:15,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:23:15,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:23:15,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:23:15,206 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:23:15,207 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:23:15,208 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:23:15,209 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:23:15,211 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:23:15,211 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:23:15,211 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:23:15,212 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:23:15,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:23:15,213 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:23:15,213 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:23:15,214 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:23:15,214 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:23:15,215 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:23:15,215 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:23:15,215 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:23:15,216 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:23:15,216 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:23:15,217 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:23:15,227 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:23:15,227 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:23:15,228 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:23:15,228 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:23:15,229 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:23:15,229 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:23:15,229 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:23:15,229 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:23:15,229 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:23:15,229 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:23:15,230 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:23:15,231 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:23:15,231 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:23:15,231 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:23:15,231 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:23:15,231 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:23:15,231 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:23:15,231 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:23:15,232 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:23:15,232 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:23:15,232 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:23:15,232 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:23:15,232 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:23:15,232 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:23:15,232 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:23:15,233 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:23:15,233 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_cddec89f-ce97-4336-8679-7ea1142a85e5/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 -> f7b03c010cc5bb74fc451f0f165676fac13dd665 [2018-11-28 12:23:15,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:23:15,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:23:15,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:23:15,273 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:23:15,273 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:23:15,274 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0661b_true-unreach-call.c [2018-11-28 12:23:15,320 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/ad4bcb4cf/db336bc5b7b64969a0e580894282128f/FLAG0996f97a4 [2018-11-28 12:23:15,661 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:23:15,661 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/sv-benchmarks/c/float-newlib/double_req_bl_0661b_true-unreach-call.c [2018-11-28 12:23:15,666 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/ad4bcb4cf/db336bc5b7b64969a0e580894282128f/FLAG0996f97a4 [2018-11-28 12:23:16,080 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/bin-2019/uautomizer/data/ad4bcb4cf/db336bc5b7b64969a0e580894282128f [2018-11-28 12:23:16,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:23:16,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:23:16,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:23:16,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:23:16,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:23:16,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11749a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16, skipping insertion in model container [2018-11-28 12:23:16,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:23:16,119 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:23:16,262 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:23:16,267 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:23:16,313 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:23:16,338 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:23:16,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16 WrapperNode [2018-11-28 12:23:16,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:23:16,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:23:16,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:23:16,339 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:23:16,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:23:16,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:23:16,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:23:16,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:23:16,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... [2018-11-28 12:23:16,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:23:16,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:23:16,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:23:16,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:23:16,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 12:23:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 12:23:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-28 12:23:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-28 12:23:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:23:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:23:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-11-28 12:23:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-11-28 12:23:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 12:23:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 12:23:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:23:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:23:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2018-11-28 12:23:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:23:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-11-28 12:23:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-11-28 12:23:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:23:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:23:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:23:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:23:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:23:16,624 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:17,369 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:17,618 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:17,719 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:17,746 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:19,401 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:19,421 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:19,463 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:24,143 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:35,460 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:23:35,913 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:23:35,913 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 12:23:35,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:23:35 BoogieIcfgContainer [2018-11-28 12:23:35,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:23:35,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:23:35,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:23:35,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:23:35,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:23:16" (1/3) ... [2018-11-28 12:23:35,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcbf49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:23:35, skipping insertion in model container [2018-11-28 12:23:35,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:23:16" (2/3) ... [2018-11-28 12:23:35,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcbf49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:23:35, skipping insertion in model container [2018-11-28 12:23:35,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:23:35" (3/3) ... [2018-11-28 12:23:35,919 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b_true-unreach-call.c [2018-11-28 12:23:35,926 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:23:35,931 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:23:35,942 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:23:35,962 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:23:35,963 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:23:35,963 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:23:35,963 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:23:35,963 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:23:35,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:23:35,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:23:35,964 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:23:35,964 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:23:35,976 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-11-28 12:23:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 12:23:35,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:35,981 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] [2018-11-28 12:23:35,982 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:35,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:35,986 INFO L82 PathProgramCache]: Analyzing trace with hash 913677384, now seen corresponding path program 1 times [2018-11-28 12:23:35,989 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:23:35,990 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:35,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:23:36,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:23:36,252 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 12:23:36,252 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:23:36,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:23:36,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:23:36,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:23:36,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:23:36,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:23:36,278 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 2 states. [2018-11-28 12:23:36,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:23:36,305 INFO L93 Difference]: Finished difference Result 215 states and 339 transitions. [2018-11-28 12:23:36,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:23:36,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-28 12:23:36,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:23:36,314 INFO L225 Difference]: With dead ends: 215 [2018-11-28 12:23:36,314 INFO L226 Difference]: Without dead ends: 107 [2018-11-28 12:23:36,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 12:23:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-11-28 12:23:36,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-11-28 12:23:36,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-28 12:23:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2018-11-28 12:23:36,352 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2018-11-28 12:23:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:23:36,353 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2018-11-28 12:23:36,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:23:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2018-11-28 12:23:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:23:36,354 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:36,354 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] [2018-11-28 12:23:36,354 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:36,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1713483969, now seen corresponding path program 1 times [2018-11-28 12:23:36,355 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:23:36,355 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:36,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:23:36,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:23:36,786 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:23:36,787 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:23:36,791 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 12:23:36,872 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:23:36,886 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 12:23:36,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:23:36,921 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 12:23:36,932 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 12:23:36,933 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 12:23:36,947 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:23:36,961 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 12:23:37,021 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 12:23:37,021 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:21 [2018-11-28 12:23:37,492 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 12:23:37,493 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:23:37,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:23:37,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 12:23:37,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:23:37,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:23:37,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:23:37,511 INFO L87 Difference]: Start difference. First operand 107 states and 147 transitions. Second operand 10 states. [2018-11-28 12:23:39,574 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-11-28 12:23:47,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:23:47,121 INFO L93 Difference]: Finished difference Result 139 states and 188 transitions. [2018-11-28 12:23:47,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:23:47,123 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-28 12:23:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:23:47,124 INFO L225 Difference]: With dead ends: 139 [2018-11-28 12:23:47,124 INFO L226 Difference]: Without dead ends: 100 [2018-11-28 12:23:47,125 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:23:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-28 12:23:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-11-28 12:23:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-28 12:23:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 132 transitions. [2018-11-28 12:23:47,138 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 132 transitions. Word has length 22 [2018-11-28 12:23:47,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:23:47,139 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 132 transitions. [2018-11-28 12:23:47,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:23:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 132 transitions. [2018-11-28 12:23:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:23:47,140 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:47,140 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:23:47,141 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:47,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:47,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1022435374, now seen corresponding path program 1 times [2018-11-28 12:23:47,141 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:23:47,142 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:47,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:23:47,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:23:47,451 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 12:23:47,451 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:23:47,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:23:47,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:23:47,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:23:47,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:23:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:23:47,464 INFO L87 Difference]: Start difference. First operand 100 states and 132 transitions. Second operand 6 states. [2018-11-28 12:23:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:23:50,438 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2018-11-28 12:23:50,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:23:50,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-11-28 12:23:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:23:50,441 INFO L225 Difference]: With dead ends: 116 [2018-11-28 12:23:50,441 INFO L226 Difference]: Without dead ends: 100 [2018-11-28 12:23:50,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 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 12:23:50,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-28 12:23:50,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-11-28 12:23:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-28 12:23:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 131 transitions. [2018-11-28 12:23:50,450 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 131 transitions. Word has length 27 [2018-11-28 12:23:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:23:50,450 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 131 transitions. [2018-11-28 12:23:50,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:23:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2018-11-28 12:23:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:23:50,451 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:50,451 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:23:50,452 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:50,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:50,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1831782000, now seen corresponding path program 1 times [2018-11-28 12:23:50,452 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:23:50,452 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:50,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:23:50,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:23:50,792 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:23:50,793 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:23:50,794 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 12:23:50,846 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 27 treesize of output 24 [2018-11-28 12:23:50,847 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 12:23:50,859 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 12:23:50,864 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 12:23:50,864 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 12:23:50,867 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:23:50,869 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 12:23:50,878 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 12:23:50,878 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-28 12:23:50,963 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 12:23:50,963 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:23:50,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:23:50,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:23:50,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:23:50,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:23:50,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:23:50,977 INFO L87 Difference]: Start difference. First operand 100 states and 131 transitions. Second operand 7 states. [2018-11-28 12:23:54,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:23:54,011 INFO L93 Difference]: Finished difference Result 142 states and 187 transitions. [2018-11-28 12:23:54,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:23:54,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-28 12:23:54,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:23:54,013 INFO L225 Difference]: With dead ends: 142 [2018-11-28 12:23:54,013 INFO L226 Difference]: Without dead ends: 100 [2018-11-28 12:23:54,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 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 12:23:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-28 12:23:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-11-28 12:23:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-28 12:23:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 130 transitions. [2018-11-28 12:23:54,021 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 130 transitions. Word has length 27 [2018-11-28 12:23:54,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:23:54,021 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 130 transitions. [2018-11-28 12:23:54,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:23:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 130 transitions. [2018-11-28 12:23:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 12:23:54,022 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:23:54,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:23:54,023 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:23:54,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:23:54,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1623541808, now seen corresponding path program 1 times [2018-11-28 12:23:54,023 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:23:54,024 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:23:54,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:23:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:23:54,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:23:54,331 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 12:23:54,331 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:23:54,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:23:54,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:23:54,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:23:54,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:23:54,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:23:54,344 INFO L87 Difference]: Start difference. First operand 100 states and 130 transitions. Second operand 7 states. [2018-11-28 12:24:00,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:00,811 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2018-11-28 12:24:00,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:24:00,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-28 12:24:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:00,813 INFO L225 Difference]: With dead ends: 107 [2018-11-28 12:24:00,813 INFO L226 Difference]: Without dead ends: 104 [2018-11-28 12:24:00,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:24:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-28 12:24:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-11-28 12:24:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-28 12:24:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 134 transitions. [2018-11-28 12:24:00,825 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 134 transitions. Word has length 27 [2018-11-28 12:24:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:00,826 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 134 transitions. [2018-11-28 12:24:00,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:24:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 134 transitions. [2018-11-28 12:24:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 12:24:00,826 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:00,827 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 12:24:00,827 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:24:00,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:00,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1928846026, now seen corresponding path program 1 times [2018-11-28 12:24:00,828 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:24:00,828 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:24:00,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:01,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:01,757 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 12:24:01,757 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:01,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:01,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 12:24:01,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:24:01,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:24:01,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:24:01,774 INFO L87 Difference]: Start difference. First operand 104 states and 134 transitions. Second operand 11 states. [2018-11-28 12:24:03,085 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-11-28 12:24:03,432 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-28 12:24:04,809 WARN L180 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 104 DAG size of output: 76 [2018-11-28 12:24:05,293 WARN L180 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-11-28 12:24:05,702 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-11-28 12:24:07,470 WARN L180 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-11-28 12:24:10,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:10,293 INFO L93 Difference]: Finished difference Result 120 states and 150 transitions. [2018-11-28 12:24:10,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:24:10,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2018-11-28 12:24:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:10,295 INFO L225 Difference]: With dead ends: 120 [2018-11-28 12:24:10,295 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 12:24:10,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:24:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 12:24:10,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2018-11-28 12:24:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-28 12:24:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2018-11-28 12:24:10,303 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 28 [2018-11-28 12:24:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:10,304 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2018-11-28 12:24:10,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:24:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2018-11-28 12:24:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 12:24:10,305 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:10,305 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 12:24:10,305 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:24:10,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:10,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1885367956, now seen corresponding path program 1 times [2018-11-28 12:24:10,306 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:24:10,306 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:24:10,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:10,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:10,695 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 12:24:10,695 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:10,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:10,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:24:10,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:24:10,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:24:10,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:24:10,708 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand 9 states. [2018-11-28 12:24:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:30,251 INFO L93 Difference]: Finished difference Result 96 states and 109 transitions. [2018-11-28 12:24:30,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:24:30,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-11-28 12:24:30,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:30,607 INFO L225 Difference]: With dead ends: 96 [2018-11-28 12:24:30,607 INFO L226 Difference]: Without dead ends: 74 [2018-11-28 12:24:30,607 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:24:30,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-28 12:24:30,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2018-11-28 12:24:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-28 12:24:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2018-11-28 12:24:30,612 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 35 [2018-11-28 12:24:30,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:30,612 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2018-11-28 12:24:30,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:24:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2018-11-28 12:24:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 12:24:30,613 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:30,613 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 12:24:30,613 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:24:30,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:30,614 INFO L82 PathProgramCache]: Analyzing trace with hash -129513543, now seen corresponding path program 1 times [2018-11-28 12:24:30,614 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:24:30,614 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:24:30,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:30,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:31,025 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 12:24:31,025 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:31,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:31,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 12:24:31,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:24:31,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:24:31,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:24:31,038 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand 10 states. [2018-11-28 12:24:49,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:49,180 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2018-11-28 12:24:49,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:24:49,545 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-11-28 12:24:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:49,546 INFO L225 Difference]: With dead ends: 81 [2018-11-28 12:24:49,546 INFO L226 Difference]: Without dead ends: 78 [2018-11-28 12:24:49,546 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:24:49,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-28 12:24:49,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2018-11-28 12:24:49,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-28 12:24:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2018-11-28 12:24:49,552 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 35 [2018-11-28 12:24:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:49,552 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2018-11-28 12:24:49,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:24:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2018-11-28 12:24:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 12:24:49,553 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:49,553 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 12:24:49,553 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:24:49,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:49,554 INFO L82 PathProgramCache]: Analyzing trace with hash 103145067, now seen corresponding path program 1 times [2018-11-28 12:24:49,554 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:24:49,554 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:24:49,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:49,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:49,976 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 12:24:49,976 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:49,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:49,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 12:24:49,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:24:49,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:24:49,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:24:49,987 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 12 states. [2018-11-28 12:24:50,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:24:50,913 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2018-11-28 12:24:50,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:24:50,914 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-11-28 12:24:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:24:50,915 INFO L225 Difference]: With dead ends: 82 [2018-11-28 12:24:50,915 INFO L226 Difference]: Without dead ends: 69 [2018-11-28 12:24:50,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:24:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-28 12:24:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-28 12:24:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 12:24:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2018-11-28 12:24:50,922 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 35 [2018-11-28 12:24:50,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:24:50,923 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2018-11-28 12:24:50,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:24:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-11-28 12:24:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-28 12:24:50,923 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:24:50,924 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] [2018-11-28 12:24:50,924 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:24:50,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:24:50,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1963333289, now seen corresponding path program 1 times [2018-11-28 12:24:50,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:24:50,925 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:24:50,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:24:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:24:55,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:24:55,445 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 12:24:55,445 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:24:55,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:24:55,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:24:55,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:24:55,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:24:55,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:24:55,504 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 9 states. [2018-11-28 12:25:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:16,931 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2018-11-28 12:25:17,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:25:17,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-11-28 12:25:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:17,287 INFO L225 Difference]: With dead ends: 94 [2018-11-28 12:25:17,288 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 12:25:17,288 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:25:17,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 12:25:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-11-28 12:25:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 12:25:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-11-28 12:25:17,293 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 37 [2018-11-28 12:25:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:17,294 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-11-28 12:25:17,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:25:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-11-28 12:25:17,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 12:25:17,294 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:17,294 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] [2018-11-28 12:25:17,294 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:25:17,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:17,295 INFO L82 PathProgramCache]: Analyzing trace with hash -616077712, now seen corresponding path program 1 times [2018-11-28 12:25:17,295 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:25:17,295 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:25:17,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:21,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:24,789 WARN L180 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 12:25:28,534 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 12:25:28,539 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 12:25:28,539 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:25:28,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:28,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:25:28,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:25:28,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:25:28,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:25:28,599 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 8 states. [2018-11-28 12:25:35,343 WARN L180 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 12:25:47,625 WARN L180 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 12:25:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:25:56,556 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2018-11-28 12:25:56,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:25:56,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-11-28 12:25:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:25:56,558 INFO L225 Difference]: With dead ends: 91 [2018-11-28 12:25:56,558 INFO L226 Difference]: Without dead ends: 68 [2018-11-28 12:25:56,559 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:25:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-28 12:25:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-28 12:25:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-28 12:25:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2018-11-28 12:25:56,565 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 38 [2018-11-28 12:25:56,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:25:56,565 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2018-11-28 12:25:56,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:25:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2018-11-28 12:25:56,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-28 12:25:56,566 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:25:56,566 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] [2018-11-28 12:25:56,566 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:25:56,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:25:56,566 INFO L82 PathProgramCache]: Analyzing trace with hash -151194284, now seen corresponding path program 1 times [2018-11-28 12:25:56,567 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:25:56,567 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:25:56,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:25:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:25:56,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:25:57,226 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 12:25:57,227 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:25:57,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:25:57,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-28 12:25:57,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 12:25:57,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 12:25:57,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:25:57,239 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 15 states. [2018-11-28 12:25:58,925 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-28 12:26:18,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:26:18,083 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2018-11-28 12:26:18,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 12:26:18,083 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2018-11-28 12:26:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:26:18,084 INFO L225 Difference]: With dead ends: 73 [2018-11-28 12:26:18,084 INFO L226 Difference]: Without dead ends: 59 [2018-11-28 12:26:18,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2018-11-28 12:26:18,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-28 12:26:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-11-28 12:26:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-28 12:26:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-11-28 12:26:18,090 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 43 [2018-11-28 12:26:18,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:26:18,090 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-11-28 12:26:18,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 12:26:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-11-28 12:26:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 12:26:18,091 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:26:18,091 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] [2018-11-28 12:26:18,091 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:26:18,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:26:18,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2143946732, now seen corresponding path program 1 times [2018-11-28 12:26:18,092 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:26:18,092 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:26:18,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:26:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:26:23,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:26:23,422 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 12:26:23,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:26:23,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:26:23,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:26:23,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:26:23,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:26:23,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:26:23,488 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 9 states. [2018-11-28 12:26:53,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:26:53,828 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2018-11-28 12:26:53,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:26:53,830 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-11-28 12:26:53,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:26:53,831 INFO L225 Difference]: With dead ends: 87 [2018-11-28 12:26:53,831 INFO L226 Difference]: Without dead ends: 58 [2018-11-28 12:26:53,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:26:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-28 12:26:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-28 12:26:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-28 12:26:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-11-28 12:26:53,837 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 47 [2018-11-28 12:26:53,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:26:53,837 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-11-28 12:26:53,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:26:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-11-28 12:26:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 12:26:53,837 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:26:53,837 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] [2018-11-28 12:26:53,838 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:26:53,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:26:53,838 INFO L82 PathProgramCache]: Analyzing trace with hash -836458260, now seen corresponding path program 1 times [2018-11-28 12:26:53,838 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:26:53,838 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cddec89f-ce97-4336-8679-7ea1142a85e5/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 12:26:53,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:26:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:26:58,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:26:59,169 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 12:26:59,169 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:26:59,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:26:59,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:26:59,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:26:59,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:26:59,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:26:59,235 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 9 states. [2018-11-28 12:27:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:27:10,049 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-11-28 12:27:10,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:27:10,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-11-28 12:27:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:27:10,049 INFO L225 Difference]: With dead ends: 58 [2018-11-28 12:27:10,049 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:27:10,050 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:27:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:27:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:27:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:27:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:27:10,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-11-28 12:27:10,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:27:10,051 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:27:10,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:27:10,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:27:10,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:27:10,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:27:25,157 WARN L180 SmtUtils]: Spent 15.00 s on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2018-11-28 12:27:25,504 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 45 [2018-11-28 12:27:32,662 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-28 12:27:32,663 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 12:27:32,666 INFO L168 Benchmark]: Toolchain (without parser) took 256583.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.2 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -274.1 MB). Peak memory consumption was 321.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:27:32,666 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 12:27:32,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:27:32,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -211.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:27:32,668 INFO L168 Benchmark]: Boogie Preprocessor took 38.31 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 12:27:32,668 INFO L168 Benchmark]: RCFGBuilder took 19473.53 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: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:27:32,668 INFO L168 Benchmark]: TraceAbstraction took 236750.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -146.3 MB). Peak memory consumption was 304.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:27:32,671 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 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -211.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 19473.53 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: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 236750.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -146.3 MB). Peak memory consumption was 304.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 271]: 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...