./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 7fd08b3e226d625ffd75458b50e3f94c29ac1e83 ................................................................................................................................................................................................................................................................................ 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_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 7fd08b3e226d625ffd75458b50e3f94c29ac1e83 ................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 10:19:39,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:19:39,327 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:19:39,336 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:19:39,336 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:19:39,337 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:19:39,338 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:19:39,339 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:19:39,340 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:19:39,340 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:19:39,341 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:19:39,341 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:19:39,342 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:19:39,343 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:19:39,343 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:19:39,344 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:19:39,345 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:19:39,346 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:19:39,347 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:19:39,348 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:19:39,349 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:19:39,350 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:19:39,351 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:19:39,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:19:39,352 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:19:39,352 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:19:39,353 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:19:39,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:19:39,354 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:19:39,355 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:19:39,355 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:19:39,356 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:19:39,356 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:19:39,356 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:19:39,357 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:19:39,357 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:19:39,358 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 10:19:39,367 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:19:39,368 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:19:39,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:19:39,368 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:19:39,369 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:19:39,369 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:19:39,369 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:19:39,369 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:19:39,370 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:19:39,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:19:39,371 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:19:39,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:19:39,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:19:39,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:19:39,371 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:19:39,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:19:39,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:19:39,373 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_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 -> 7fd08b3e226d625ffd75458b50e3f94c29ac1e83 [2018-11-18 10:19:39,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:19:39,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:19:39,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:19:39,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:19:39,411 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:19:39,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-11-18 10:19:39,455 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/e7d67c1b7/2209a8099f564094ac61029979b89d0d/FLAGa8e2757af [2018-11-18 10:19:39,774 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:19:39,774 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-11-18 10:19:39,778 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/e7d67c1b7/2209a8099f564094ac61029979b89d0d/FLAGa8e2757af [2018-11-18 10:19:39,786 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/e7d67c1b7/2209a8099f564094ac61029979b89d0d [2018-11-18 10:19:39,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:19:39,790 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:19:39,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:39,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:19:39,794 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:19:39,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f003888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39, skipping insertion in model container [2018-11-18 10:19:39,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:19:39,817 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:19:39,923 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:39,925 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:19:39,938 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:39,946 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:19:39,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39 WrapperNode [2018-11-18 10:19:39,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:39,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:19:39,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:19:39,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:19:39,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... [2018-11-18 10:19:39,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:19:39,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:19:39,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:19:39,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:19:39,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 [2018-11-18 10:19:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:19:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:19:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:19:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2018-11-18 10:19:40,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:19:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:19:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:19:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure y [2018-11-18 10:19:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:19:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:19:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:19:40,143 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:19:40,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:40 BoogieIcfgContainer [2018-11-18 10:19:40,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:19:40,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:19:40,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:19:40,147 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:19:40,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:19:39" (1/3) ... [2018-11-18 10:19:40,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50074ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:40, skipping insertion in model container [2018-11-18 10:19:40,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:39" (2/3) ... [2018-11-18 10:19:40,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50074ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:40, skipping insertion in model container [2018-11-18 10:19:40,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:40" (3/3) ... [2018-11-18 10:19:40,149 INFO L112 eAbstractionObserver]: Analyzing ICFG water_pid_true-unreach-call_true-termination.c [2018-11-18 10:19:40,155 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:19:40,159 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:19:40,167 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:19:40,183 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:19:40,183 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:19:40,183 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:19:40,183 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:19:40,183 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:19:40,184 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:19:40,184 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:19:40,184 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:19:40,184 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:19:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-18 10:19:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:19:40,202 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:40,203 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:19:40,204 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:40,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:40,207 INFO L82 PathProgramCache]: Analyzing trace with hash 220960723, now seen corresponding path program 1 times [2018-11-18 10:19:40,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:19:40,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:19:40,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:19:40,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:19:40,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:19:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:19:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:19:40,299 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:19:40,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:19:40 BoogieIcfgContainer [2018-11-18 10:19:40,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:19:40,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:19:40,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:19:40,319 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:19:40,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:40" (3/4) ... [2018-11-18 10:19:40,321 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:19:40,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:19:40,322 INFO L168 Benchmark]: Toolchain (without parser) took 532.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:19:40,323 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:19:40,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:40,324 INFO L168 Benchmark]: Boogie Preprocessor took 20.77 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:40,324 INFO L168 Benchmark]: RCFGBuilder took 176.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:40,324 INFO L168 Benchmark]: TraceAbstraction took 173.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:40,325 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:19:40,327 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.77 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 173.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_real at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L10] static NUM yn = 0; [L12] NUM ui = 0; VAL [\old(ui)=9, \old(yn)=5] [L22] NUM yi, yc; [L23] NUM K; [L24] NUM T; [L25] NUM taui; [L26] NUM taud; [L27] NUM ei, sumej, epi; [L28] int i; [L29] T = 1 [L30] taui = 1 [L31] taud = 1 [L32] K = .5 [L33] yc = .5 VAL [\old(ui)=2, \old(yn)=8, K=1/2, ui=2, yc=1/2, yn=8] [L34] CALL, EXPR y(0) VAL [\old(i)=0, \old(ui)=2, \old(yn)=8, ui=2, yn=8] [L16] yn += ui [L17] RET return yn; VAL [\old(i)=0, \old(ui)=2, \old(yn)=8, \result=6, i=0, ui=2, yn=6] [L34] EXPR y(0) VAL [\old(ui)=2, \old(yn)=8, K=1/2, ui=2, y(0)=6, yc=1/2, yn=6] [L34] yi = y(0) [L35] epi = yc-yi [L36] sumej = epi [L37] i=0 VAL [\old(ui)=2, \old(yn)=8, epi=7, i=0, K=1/2, sumej=7, ui=2, yc=1/2, yi=6, yn=6] [L37] COND TRUE i<120 VAL [\old(ui)=2, \old(yn)=8, epi=7, i=0, K=1/2, sumej=7, ui=2, yc=1/2, yi=6, yn=6] [L38] CALL, EXPR y(i) VAL [\old(i)=0, \old(ui)=2, \old(yn)=6, ui=2, yn=6] [L16] yn += ui [L17] RET return yn; VAL [\old(i)=0, \old(ui)=2, \old(yn)=6, \result=3, i=0, ui=2, yn=3] [L38] EXPR y(i) VAL [\old(ui)=2, \old(yn)=8, epi=7, i=0, K=1/2, sumej=7, ui=2, y(i)=3, yc=1/2, yi=6, yn=3] [L38] yi = y(i) [L39] ei = yc-yi [L40] sumej = sumej+ei [L41] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L42] epi = ei VAL [\old(ui)=2, \old(yn)=8, ei=4, epi=4, i=0, K=1/2, yc=1/2, yi=3, yn=3] [L44] CALL __VERIFIER_assert(epi >= -1. && epi <= 1.) VAL [\old(cond)=0, \old(ui)=2, \old(yn)=8, yn=3] [L6] COND TRUE !(cond) VAL [\old(cond)=0, \old(ui)=2, \old(yn)=8, cond=0, yn=3] [L6] __VERIFIER_error() VAL [\old(cond)=0, \old(ui)=2, \old(yn)=8, cond=0, yn=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.1.23-5842f4b [2018-11-18 10:19:41,769 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:19:41,770 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:19:41,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:19:41,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:19:41,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:19:41,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:19:41,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:19:41,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:19:41,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:19:41,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:19:41,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:19:41,784 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:19:41,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:19:41,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:19:41,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:19:41,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:19:41,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:19:41,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:19:41,790 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:19:41,790 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:19:41,791 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:19:41,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:19:41,793 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:19:41,793 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:19:41,794 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:19:41,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:19:41,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:19:41,795 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:19:41,796 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:19:41,796 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:19:41,797 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:19:41,797 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:19:41,797 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:19:41,797 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:19:41,798 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:19:41,798 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 10:19:41,808 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:19:41,808 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:19:41,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:19:41,809 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:19:41,809 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:19:41,809 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:19:41,809 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:19:41,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:19:41,810 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:19:41,811 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:19:41,811 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:19:41,811 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:19:41,811 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:19:41,811 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:19:41,811 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:19:41,811 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:19:41,812 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:19:41,812 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:19:41,813 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:19:41,813 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_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 -> 7fd08b3e226d625ffd75458b50e3f94c29ac1e83 [2018-11-18 10:19:41,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:19:41,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:19:41,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:19:41,854 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:19:41,855 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:19:41,855 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-11-18 10:19:41,888 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/1d88c589d/f1b032a975764f26b5494cd2550cda02/FLAG06cc27603 [2018-11-18 10:19:42,278 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:19:42,279 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-11-18 10:19:42,282 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/1d88c589d/f1b032a975764f26b5494cd2550cda02/FLAG06cc27603 [2018-11-18 10:19:42,292 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/bin-2019/uautomizer/data/1d88c589d/f1b032a975764f26b5494cd2550cda02 [2018-11-18 10:19:42,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:19:42,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:19:42,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:42,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:19:42,299 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:19:42,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f42ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42, skipping insertion in model container [2018-11-18 10:19:42,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:19:42,322 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:19:42,451 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:42,455 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:19:42,467 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:42,479 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:19:42,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42 WrapperNode [2018-11-18 10:19:42,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:42,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:19:42,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:19:42,480 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:19:42,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... [2018-11-18 10:19:42,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:19:42,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:19:42,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:19:42,505 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:19:42,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 [2018-11-18 10:19:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:19:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:19:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:19:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2018-11-18 10:19:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:19:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:19:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:19:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure y [2018-11-18 10:19:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:19:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:19:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:19:45,419 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:19:45,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:45 BoogieIcfgContainer [2018-11-18 10:19:45,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:19:45,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:19:45,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:19:45,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:19:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:19:42" (1/3) ... [2018-11-18 10:19:45,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483c884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:45, skipping insertion in model container [2018-11-18 10:19:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:42" (2/3) ... [2018-11-18 10:19:45,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483c884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:45, skipping insertion in model container [2018-11-18 10:19:45,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:45" (3/3) ... [2018-11-18 10:19:45,425 INFO L112 eAbstractionObserver]: Analyzing ICFG water_pid_true-unreach-call_true-termination.c [2018-11-18 10:19:45,430 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:19:45,434 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:19:45,444 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:19:45,461 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:19:45,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:19:45,462 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:19:45,462 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:19:45,462 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:19:45,462 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:19:45,462 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:19:45,462 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:19:45,462 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:19:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-18 10:19:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:19:45,477 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:45,478 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:19:45,479 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:45,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash 220960723, now seen corresponding path program 1 times [2018-11-18 10:19:45,485 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:19:45,485 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 [2018-11-18 10:19:45,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:19:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:19:48,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:19:48,847 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 10:19:49,365 WARN L180 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 10:19:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:19:49,906 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:19:49,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:19:49,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 10:19:49,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 10:19:49,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 10:19:49,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-18 10:19:49,971 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 11 states. [2018-11-18 10:19:50,238 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-11-18 10:19:50,454 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-11-18 10:19:50,797 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-18 10:19:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:19:59,649 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2018-11-18 10:19:59,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 10:19:59,657 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-11-18 10:19:59,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:19:59,665 INFO L225 Difference]: With dead ends: 73 [2018-11-18 10:19:59,665 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 10:19:59,667 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-11-18 10:19:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 10:19:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2018-11-18 10:19:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 10:19:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-11-18 10:19:59,705 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 22 [2018-11-18 10:19:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:19:59,705 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-11-18 10:19:59,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 10:19:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-11-18 10:19:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 10:19:59,707 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:59,707 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:19:59,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:59,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:59,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1878853563, now seen corresponding path program 1 times [2018-11-18 10:19:59,709 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:19:59,709 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_071b8668-ee2b-4ee4-8b74-808f4744e2f7/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 [2018-11-18 10:19:59,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:20:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:20:04,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:20:05,196 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 10:20:06,444 WARN L180 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 10:20:27,538 WARN L180 SmtUtils]: Spent 8.35 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-18 10:20:29,621 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse4 (fp.add roundNearestTiesToEven .cse5 .cse5))) (and (= (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.mul roundNearestTiesToEven .cse0 (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse1 (fp.sub roundNearestTiesToEven .cse0 c_~yn~0)) (.cse2 (fp.sub roundNearestTiesToEven .cse0 .cse4))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 .cse1) .cse3) .cse3)) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven .cse3 .cse3) (fp.sub roundNearestTiesToEven .cse1 .cse2)))))) c_~ui~0) (= c_~yn~0 (fp.add roundNearestTiesToEven .cse4 .cse5))))) is different from true [2018-11-18 10:20:31,720 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse4 (fp.div roundNearestTiesToEven .cse3 .cse3)) (.cse5 (fp.add roundNearestTiesToEven .cse6 .cse6))) (and (= (fp.mul roundNearestTiesToEven .cse0 (let ((.cse1 (fp.sub roundNearestTiesToEven .cse0 c_~yn~0)) (.cse2 (fp.sub roundNearestTiesToEven .cse0 .cse5))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 .cse1) .cse3) .cse3)) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse1 .cse2))))) c_~ui~0) (= c_~yn~0 (fp.add roundNearestTiesToEven .cse5 .cse6)) (= c_main_~yc~0 .cse0) (= c_~ui~0 (fp.mul roundNearestTiesToEven .cse0 (let ((.cse7 (fp.sub roundNearestTiesToEven c_main_~yc~0 c_~yn~0)) (.cse8 (fp.sub roundNearestTiesToEven c_main_~yc~0 .cse5))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse7 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse8 .cse7) .cse3) .cse3)) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse7 .cse8))))))))) is different from false [2018-11-18 10:20:33,803 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse4 (fp.div roundNearestTiesToEven .cse3 .cse3)) (.cse5 (fp.add roundNearestTiesToEven .cse6 .cse6))) (and (= (fp.mul roundNearestTiesToEven .cse0 (let ((.cse1 (fp.sub roundNearestTiesToEven .cse0 c_~yn~0)) (.cse2 (fp.sub roundNearestTiesToEven .cse0 .cse5))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 .cse1) .cse3) .cse3)) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse1 .cse2))))) c_~ui~0) (= c_~yn~0 (fp.add roundNearestTiesToEven .cse5 .cse6)) (= c_main_~yc~0 .cse0) (= c_~ui~0 (fp.mul roundNearestTiesToEven .cse0 (let ((.cse7 (fp.sub roundNearestTiesToEven c_main_~yc~0 c_~yn~0)) (.cse8 (fp.sub roundNearestTiesToEven c_main_~yc~0 .cse5))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse7 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse8 .cse7) .cse3) .cse3)) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse7 .cse8))))))))) is different from true [2018-11-18 10:20:40,090 WARN L180 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-11-18 10:20:42,166 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse6 (fp.add roundNearestTiesToEven .cse10 .cse10)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse4 .cse4)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse7 (fp.add roundNearestTiesToEven .cse6 .cse10))) (let ((.cse0 (fp.mul roundNearestTiesToEven .cse1 (let ((.cse8 (fp.sub roundNearestTiesToEven .cse1 .cse7)) (.cse9 (fp.sub roundNearestTiesToEven .cse1 .cse6))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse8 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse9 .cse8) .cse4) .cse4)) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven .cse8 .cse9))))))) (and (= .cse0 (fp.mul roundNearestTiesToEven .cse1 (let ((.cse2 (fp.sub roundNearestTiesToEven c_main_~yc~0 .cse7)) (.cse3 (fp.sub roundNearestTiesToEven c_main_~yc~0 .cse6))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse3 .cse2) .cse4) .cse4)) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven .cse2 .cse3)))))) (= c_main_~yc~0 .cse1) (= |c_main_#t~ret2| (fp.add roundNearestTiesToEven .cse7 .cse0))))))) is different from true [2018-11-18 10:20:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 1 times theorem prover too weak. 3 trivial. 6 not checked. [2018-11-18 10:20:49,840 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:21:05,085 WARN L180 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 10:21:05,442 WARN L180 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 10:21:06,069 WARN L180 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 10:21:08,126 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 10:21:09,020 WARN L180 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 10:21:33,784 WARN L180 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 10:21:35,834 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.sub roundNearestTiesToEven v_prenex_1 (fp.add roundNearestTiesToEven |c_old(~yn~0)| c_~ui~0))) (.cse2 (fp.neg .cse1))) (or (not (fp.leq .cse0 .cse1)) (not (fp.geq .cse0 .cse2)) (fp.geq (fp.sub roundNearestTiesToEven v_prenex_1 |c_y_#res|) .cse2))))) (forall ((v_main_~yc~0_BEFORE_CALL_7 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_7 (fp.add roundNearestTiesToEven |c_old(~yn~0)| c_~ui~0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (fp.leq (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_7 |c_y_#res|) .cse3) (not (fp.geq .cse4 (fp.neg .cse3))) (not (fp.leq .cse4 .cse3)))))) is different from true [2018-11-18 10:21:37,887 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_main_~yc~0_BEFORE_CALL_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_7 (fp.add roundNearestTiesToEven |c_old(~yn~0)| c_~ui~0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (fp.leq (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_7 (fp.add roundNearestTiesToEven c_~yn~0 c_~ui~0)) .cse0) (not (fp.geq .cse1 (fp.neg .cse0))) (not (fp.leq .cse1 .cse0))))) (forall ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.sub roundNearestTiesToEven v_prenex_1 (fp.add roundNearestTiesToEven |c_old(~yn~0)| c_~ui~0))) (.cse4 (fp.neg .cse3))) (or (not (fp.leq .cse2 .cse3)) (not (fp.geq .cse2 .cse4)) (fp.geq (fp.sub roundNearestTiesToEven v_prenex_1 (fp.add roundNearestTiesToEven c_~yn~0 c_~ui~0)) .cse4)))))) is different from true [2018-11-18 10:21:40,638 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub roundNearestTiesToEven c_main_~yc~0 (fp.add roundNearestTiesToEven c_~yn~0 (fp.mul roundNearestTiesToEven c_main_~K~0 (let ((.cse2 (fp.sub roundNearestTiesToEven c_main_~yc~0 |c_main_#t~ret2|))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~sumej~0 .cse2) c_main_~T~0) c_main_~taui~0)) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~taud~0 c_main_~T~0) (fp.sub roundNearestTiesToEven .cse2 c_main_~epi~0)))))))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2018-11-18 10:21:43,342 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub roundNearestTiesToEven c_main_~yc~0 (fp.add roundNearestTiesToEven c_~yn~0 (fp.mul roundNearestTiesToEven c_main_~K~0 (let ((.cse2 (fp.sub roundNearestTiesToEven c_main_~yc~0 |c_main_#t~ret2|))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~sumej~0 .cse2) c_main_~T~0) c_main_~taui~0)) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~taud~0 c_main_~T~0) (fp.sub roundNearestTiesToEven .cse2 c_main_~epi~0)))))))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2018-11-18 10:21:43,962 WARN L180 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 10:21:44,343 WARN L180 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 10:21:45,130 WARN L180 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 10:21:45,909 WARN L180 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 10:21:48,632 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub roundNearestTiesToEven c_main_~yc~0 (let ((.cse2 (fp.add roundNearestTiesToEven c_~yn~0 c_~ui~0))) (fp.add roundNearestTiesToEven .cse2 (fp.mul roundNearestTiesToEven c_main_~K~0 (let ((.cse3 (fp.sub roundNearestTiesToEven c_main_~yc~0 .cse2))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse3 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~sumej~0 .cse3) c_main_~T~0) c_main_~taui~0)) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~taud~0 c_main_~T~0) (fp.sub roundNearestTiesToEven .cse3 c_main_~epi~0))))))))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2018-11-18 10:21:51,366 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub roundNearestTiesToEven c_main_~yc~0 (let ((.cse2 (fp.add roundNearestTiesToEven c_~yn~0 c_~ui~0))) (fp.add roundNearestTiesToEven .cse2 (fp.mul roundNearestTiesToEven c_main_~K~0 (let ((.cse3 (fp.sub roundNearestTiesToEven c_main_~yc~0 .cse2))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse3 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~sumej~0 .cse3) c_main_~T~0) c_main_~taui~0)) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~taud~0 c_main_~T~0) (fp.sub roundNearestTiesToEven .cse3 c_main_~epi~0))))))))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2018-11-18 10:21:54,756 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_6 (_ FloatingPoint 11 53)) (v_prenex_7 (_ FloatingPoint 11 53)) (v_prenex_4 (_ FloatingPoint 11 53)) (v_prenex_5 (_ FloatingPoint 11 53)) (v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53)) (v_prenex_8 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div roundNearestTiesToEven v_prenex_3 v_prenex_7))) (let ((.cse3 (fp.sub roundNearestTiesToEven v_prenex_8 (let ((.cse4 (fp.add roundNearestTiesToEven |c_old(~yn~0)| c_~ui~0))) (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven v_prenex_4 (let ((.cse5 (fp.sub roundNearestTiesToEven v_prenex_8 .cse4))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse5 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_6 .cse5) v_prenex_7) v_prenex_5)) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven .cse5 v_prenex_2))))))))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (fp.leq (fp.sub roundNearestTiesToEven v_prenex_8 (fp.add roundNearestTiesToEven c_~yn~0 (fp.mul roundNearestTiesToEven v_prenex_4 (let ((.cse0 (fp.sub roundNearestTiesToEven v_prenex_8 |c_y_#res|))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_6 .cse0) v_prenex_7) v_prenex_5)) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven .cse0 v_prenex_2))))))) .cse2) (not (fp.leq .cse3 .cse2)) (not (fp.geq .cse3 (fp.neg .cse2))))))) (forall ((v_main_~epi~0_BEFORE_CALL_4 (_ FloatingPoint 11 53)) (v_main_~taud~0_BEFORE_CALL_3 (_ FloatingPoint 11 53)) (v_main_~K~0_BEFORE_CALL_3 (_ FloatingPoint 11 53)) (v_main_~taui~0_BEFORE_CALL_3 (_ FloatingPoint 11 53)) (v_main_~sumej~0_BEFORE_CALL_2 (_ FloatingPoint 11 53)) (v_main_~T~0_BEFORE_CALL_3 (_ FloatingPoint 11 53)) (v_main_~yc~0_BEFORE_CALL_9 (_ FloatingPoint 11 53))) (let ((.cse9 (fp.div roundNearestTiesToEven v_main_~taud~0_BEFORE_CALL_3 v_main_~T~0_BEFORE_CALL_3)) (.cse10 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.neg .cse10)) (.cse6 (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_9 (let ((.cse11 (fp.add roundNearestTiesToEven |c_old(~yn~0)| c_~ui~0))) (fp.add roundNearestTiesToEven .cse11 (fp.mul roundNearestTiesToEven v_main_~K~0_BEFORE_CALL_3 (let ((.cse12 (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_9 .cse11))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse12 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven v_main_~sumej~0_BEFORE_CALL_2 .cse12) v_main_~T~0_BEFORE_CALL_3) v_main_~taui~0_BEFORE_CALL_3)) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven .cse12 v_main_~epi~0_BEFORE_CALL_4)))))))))) (or (not (fp.geq .cse6 .cse7)) (fp.geq (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_9 (fp.add roundNearestTiesToEven c_~yn~0 (fp.mul roundNearestTiesToEven v_main_~K~0_BEFORE_CALL_3 (let ((.cse8 (fp.sub roundNearestTiesToEven v_main_~yc~0_BEFORE_CALL_9 |c_y_#res|))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse8 (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven v_main_~sumej~0_BEFORE_CALL_2 .cse8) v_main_~T~0_BEFORE_CALL_3) v_main_~taui~0_BEFORE_CALL_3)) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven .cse8 v_main_~epi~0_BEFORE_CALL_4))))))) .cse7) (not (fp.leq .cse6 .cse10))))))) is different from true [2018-11-18 10:21:57,144 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-18 10:21:57,345 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-11-18 10:21:57,345 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.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:845) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$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.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) ... 40 more [2018-11-18 10:21:57,348 INFO L168 Benchmark]: Toolchain (without parser) took 135053.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 949.7 MB in the beginning and 923.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 168.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:57,349 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:21:57,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.47 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:57,350 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:21:57,350 INFO L168 Benchmark]: RCFGBuilder took 2914.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:57,351 INFO L168 Benchmark]: TraceAbstraction took 131927.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.9 MB in the end (delta: 187.0 MB). Peak memory consumption was 187.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:21:57,353 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.47 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.43 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2914.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131927.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.9 MB in the end (delta: 187.0 MB). Peak memory consumption was 187.0 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...