./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_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_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 .............................................................................................................................................................................................................................................................................................................. 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_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 ............................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:30:56,090 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:30:56,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:30:56,098 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:30:56,098 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:30:56,099 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:30:56,100 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:30:56,101 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:30:56,102 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:30:56,103 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:30:56,103 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:30:56,103 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:30:56,104 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:30:56,104 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:30:56,105 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:30:56,106 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:30:56,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:30:56,107 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:30:56,109 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:30:56,110 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:30:56,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:30:56,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:30:56,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:30:56,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:30:56,114 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:30:56,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:30:56,115 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:30:56,116 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:30:56,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:30:56,117 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:30:56,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:30:56,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:30:56,118 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:30:56,118 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:30:56,118 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:30:56,119 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:30:56,119 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:30:56,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:30:56,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:30:56,129 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:30:56,129 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:30:56,130 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:30:56,130 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:30:56,130 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:30:56,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:30:56,130 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:30:56,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:30:56,131 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:30:56,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:30:56,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:30:56,132 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_6b3bab6a-78a1-459d-a416-0df793e4e253/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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-11-28 12:30:56,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:30:56,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:30:56,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:30:56,171 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:30:56,171 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:30:56,171 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-28 12:30:56,218 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/061af22cb/dbd65c92d70d47ec8e3ce8346d830437/FLAG55640755c [2018-11-28 12:30:56,549 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:30:56,550 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-28 12:30:56,555 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/061af22cb/dbd65c92d70d47ec8e3ce8346d830437/FLAG55640755c [2018-11-28 12:30:56,567 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/061af22cb/dbd65c92d70d47ec8e3ce8346d830437 [2018-11-28 12:30:56,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:30:56,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:30:56,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:30:56,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:30:56,574 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:30:56,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d0d070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56, skipping insertion in model container [2018-11-28 12:30:56,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:30:56,598 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:30:56,722 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:30:56,725 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:30:56,745 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:30:56,759 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:30:56,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56 WrapperNode [2018-11-28 12:30:56,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:30:56,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:30:56,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:30:56,760 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:30:56,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:30:56,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:30:56,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:30:56,813 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:30:56,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... [2018-11-28 12:30:56,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:30:56,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:30:56,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:30:56,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:30:56,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 12:30:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:30:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:30:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 12:30:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:30:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 12:30:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:30:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:30:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:30:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 12:30:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 12:30:57,094 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:30:57,094 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 12:30:57,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:30:57 BoogieIcfgContainer [2018-11-28 12:30:57,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:30:57,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:30:57,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:30:57,097 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:30:57,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:30:56" (1/3) ... [2018-11-28 12:30:57,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120ccac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:30:57, skipping insertion in model container [2018-11-28 12:30:57,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:56" (2/3) ... [2018-11-28 12:30:57,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@120ccac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:30:57, skipping insertion in model container [2018-11-28 12:30:57,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:30:57" (3/3) ... [2018-11-28 12:30:57,100 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-11-28 12:30:57,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:30:57,110 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:30:57,119 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:30:57,137 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:30:57,138 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:30:57,138 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:30:57,138 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:30:57,138 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:30:57,138 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:30:57,138 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:30:57,138 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:30:57,139 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:30:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-11-28 12:30:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:30:57,155 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:30:57,156 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 12:30:57,158 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:30:57,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:30:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1237427785, now seen corresponding path program 1 times [2018-11-28 12:30:57,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:30:57,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:30:57,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:30:57,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:30:57,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:30:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:30:57,249 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 12:30:57,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:30:57,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:30:57,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:30:57,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:30:57,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:30:57,262 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-11-28 12:30:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:30:57,277 INFO L93 Difference]: Finished difference Result 87 states and 122 transitions. [2018-11-28 12:30:57,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:30:57,278 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 12:30:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:30:57,285 INFO L225 Difference]: With dead ends: 87 [2018-11-28 12:30:57,286 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 12:30:57,288 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 12:30:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 12:30:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 12:30:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 12:30:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-11-28 12:30:57,316 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 22 [2018-11-28 12:30:57,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:30:57,316 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-11-28 12:30:57,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:30:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-11-28 12:30:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 12:30:57,322 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:30:57,322 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] [2018-11-28 12:30:57,323 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:30:57,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:30:57,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1731907338, now seen corresponding path program 1 times [2018-11-28 12:30:57,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:30:57,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:30:57,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:30:57,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:30:57,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:30:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:30:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:30:57,378 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:30:57,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:30:57 BoogieIcfgContainer [2018-11-28 12:30:57,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:30:57,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:30:57,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:30:57,399 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:30:57,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:30:57" (3/4) ... [2018-11-28 12:30:57,402 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:30:57,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:30:57,402 INFO L168 Benchmark]: Toolchain (without parser) took 832.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -123.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:30:57,404 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:30:57,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.89 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:30:57,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:30:57,405 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 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 12:30:57,406 INFO L168 Benchmark]: RCFGBuilder took 256.28 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:30:57,406 INFO L168 Benchmark]: TraceAbstraction took 303.76 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:30:57,407 INFO L168 Benchmark]: Witness Printer took 3.28 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 12:30:57,409 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.89 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.28 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 303.76 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.28 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 98]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 30. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450950, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = __VERIFIER_nondet_float(); [L92] COND TRUE x < -0.0f VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L94] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450949, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450949, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [\old(x)=6442450949, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [\old(x)=6442450949, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L94] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L94] float res = __ieee754_sqrtf(x); [L97] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=6442450946, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450946] [L97] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450946, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L97] COND TRUE !isnan_float(res) [L98] __VERIFIER_error() VAL [one_sqrt=1, res=6442450946, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 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=48occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 12:30:58,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:30:58,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:30:58,882 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:30:58,883 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:30:58,883 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:30:58,884 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:30:58,886 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:30:58,887 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:30:58,887 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:30:58,888 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:30:58,888 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:30:58,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:30:58,890 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:30:58,890 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:30:58,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:30:58,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:30:58,893 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:30:58,894 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:30:58,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:30:58,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:30:58,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:30:58,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:30:58,898 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:30:58,899 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:30:58,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:30:58,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:30:58,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:30:58,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:30:58,902 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:30:58,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:30:58,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:30:58,903 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:30:58,903 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:30:58,903 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:30:58,904 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:30:58,904 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:30:58,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:30:58,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:30:58,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:30:58,915 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:30:58,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:30:58,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:30:58,916 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:30:58,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:30:58,916 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:30:58,916 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:30:58,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:30:58,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:30:58,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:30:58,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:30:58,917 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:30:58,917 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:30:58,917 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:30:58,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:30:58,918 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:30:58,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:30:58,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:30:58,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:30:58,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:30:58,918 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:30:58,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:30:58,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:30:58,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:30:58,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:30:58,919 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:30:58,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:30:58,919 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:30:58,920 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:30:58,920 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_6b3bab6a-78a1-459d-a416-0df793e4e253/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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-11-28 12:30:58,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:30:58,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:30:58,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:30:58,958 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:30:58,959 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:30:58,959 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-28 12:30:59,004 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/b43ccbf3f/65bc540612fd41fba2d7f0ac776818a0/FLAG8c03b43fc [2018-11-28 12:30:59,327 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:30:59,327 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-28 12:30:59,331 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/b43ccbf3f/65bc540612fd41fba2d7f0ac776818a0/FLAG8c03b43fc [2018-11-28 12:30:59,760 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/bin-2019/uautomizer/data/b43ccbf3f/65bc540612fd41fba2d7f0ac776818a0 [2018-11-28 12:30:59,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:30:59,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:30:59,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:30:59,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:30:59,767 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:30:59,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:30:59,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9975c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59, skipping insertion in model container [2018-11-28 12:30:59,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:30:59,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:30:59,792 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:30:59,931 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:30:59,936 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:30:59,961 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:30:59,979 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:30:59,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59 WrapperNode [2018-11-28 12:30:59,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:30:59,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:30:59,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:30:59,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:30:59,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:30:59,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:30:59,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:30:59,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:30:59,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:30:59,997 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:31:00,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... [2018-11-28 12:31:00,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:31:00,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:31:00,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:31:00,022 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:31:00,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:31:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 12:31:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:31:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:31:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:31:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 12:31:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:31:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:31:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 12:31:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 12:31:00,276 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:31:00,715 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:31:00,715 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 12:31:00,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:31:00 BoogieIcfgContainer [2018-11-28 12:31:00,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:31:00,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:31:00,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:31:00,718 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:31:00,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:30:59" (1/3) ... [2018-11-28 12:31:00,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b621f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:31:00, skipping insertion in model container [2018-11-28 12:31:00,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:30:59" (2/3) ... [2018-11-28 12:31:00,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b621f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:31:00, skipping insertion in model container [2018-11-28 12:31:00,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:31:00" (3/3) ... [2018-11-28 12:31:00,721 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-11-28 12:31:00,729 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:31:00,734 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:31:00,743 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:31:00,760 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:31:00,760 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:31:00,761 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:31:00,761 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:31:00,761 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:31:00,761 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:31:00,761 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:31:00,761 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:31:00,761 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:31:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-28 12:31:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:31:00,775 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:31:00,775 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:31:00,777 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:31:00,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:31:00,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1233283399, now seen corresponding path program 1 times [2018-11-28 12:31:00,783 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:31:00,784 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 12:31:00,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:31:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:31:00,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:31:00,913 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 12:31:00,913 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:31:00,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:31:00,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:31:00,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:31:00,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:31:00,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:31:00,935 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-28 12:31:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:31:00,950 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2018-11-28 12:31:00,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:31:00,951 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 12:31:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:31:00,958 INFO L225 Difference]: With dead ends: 85 [2018-11-28 12:31:00,958 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 12:31:00,960 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:31:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 12:31:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 12:31:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:31:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-11-28 12:31:00,986 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 21 [2018-11-28 12:31:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:31:00,986 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-11-28 12:31:00,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:31:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-11-28 12:31:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:31:00,987 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:31:00,988 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 12:31:00,988 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:31:00,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:31:00,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1384450073, now seen corresponding path program 1 times [2018-11-28 12:31:00,989 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:31:00,989 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 12:31:01,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:31:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:31:01,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:31:03,198 WARN L180 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-28 12:31:10,398 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-28 12:31:19,072 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-28 12:31:21,558 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 12:31:21,559 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:31:21,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:31:21,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 12:31:21,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:31:21,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:31:21,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=85, Unknown=4, NotChecked=0, Total=110 [2018-11-28 12:31:21,568 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand 11 states. [2018-11-28 12:31:50,797 WARN L180 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-28 12:32:13,286 WARN L180 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 12:32:31,176 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 12:33:37,055 WARN L180 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-28 12:35:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:35:07,189 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2018-11-28 12:35:07,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:35:07,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-11-28 12:35:07,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:35:07,192 INFO L225 Difference]: With dead ends: 54 [2018-11-28 12:35:07,192 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 12:35:07,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=47, Invalid=186, Unknown=7, NotChecked=0, Total=240 [2018-11-28 12:35:07,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 12:35:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-11-28 12:35:07,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:35:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-11-28 12:35:07,203 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 22 [2018-11-28 12:35:07,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:35:07,204 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-11-28 12:35:07,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:35:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-11-28 12:35:07,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 12:35:07,205 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:35:07,205 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] [2018-11-28 12:35:07,205 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:35:07,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:07,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1726985307, now seen corresponding path program 1 times [2018-11-28 12:35:07,206 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:35:07,206 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 12:35:07,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:07,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:07,318 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 12:35:07,319 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:35:07,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:35:07,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:35:07,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:35:07,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:35:07,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:35:07,332 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 7 states. [2018-11-28 12:35:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:35:08,036 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-11-28 12:35:08,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:35:08,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-28 12:35:08,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:35:08,038 INFO L225 Difference]: With dead ends: 57 [2018-11-28 12:35:08,038 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 12:35:08,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:35:08,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 12:35:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-11-28 12:35:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 12:35:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-11-28 12:35:08,043 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 23 [2018-11-28 12:35:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:35:08,044 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-11-28 12:35:08,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:35:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-11-28 12:35:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:35:08,044 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:35:08,045 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] [2018-11-28 12:35:08,045 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:35:08,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:35:08,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1388819741, now seen corresponding path program 1 times [2018-11-28 12:35:08,045 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:35:08,046 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b3bab6a-78a1-459d-a416-0df793e4e253/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 12:35:08,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:35:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:35:08,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:35:09,346 WARN L180 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 12:35:10,870 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-28 12:35:11,071 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2018-11-28 12:35:11,071 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.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.pop(WrapperScript.java:106) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UndoableWrapperScript.pop(UndoableWrapperScript.java:58) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:67) 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$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) 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) ... 46 more [2018-11-28 12:35:11,074 INFO L168 Benchmark]: Toolchain (without parser) took 251311.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 947.4 MB in the beginning and 934.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 141.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:11,075 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:11,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.19 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 931.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:11,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.98 ms. Allocated memory is still 1.0 GB. Free memory is still 931.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:11,076 INFO L168 Benchmark]: Boogie Preprocessor took 24.68 ms. Allocated memory is still 1.0 GB. Free memory is still 931.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:35:11,076 INFO L168 Benchmark]: RCFGBuilder took 693.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 931.3 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:11,077 INFO L168 Benchmark]: TraceAbstraction took 250357.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.0 MB in the end (delta: 165.1 MB). Peak memory consumption was 165.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:35:11,079 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 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.19 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 931.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.98 ms. Allocated memory is still 1.0 GB. Free memory is still 931.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.68 ms. Allocated memory is still 1.0 GB. Free memory is still 931.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 693.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 931.3 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 250357.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.0 MB in the end (delta: 165.1 MB). Peak memory consumption was 165.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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...