./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan --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 Taipan --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_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan --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 Taipan --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 0.1.23-635dfa2 [2018-12-09 19:30:45,480 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:30:45,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:30:45,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:30:45,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:30:45,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:30:45,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:30:45,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:30:45,489 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:30:45,490 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:30:45,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:30:45,490 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:30:45,491 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:30:45,491 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:30:45,492 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:30:45,492 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:30:45,492 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:30:45,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:30:45,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:30:45,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:30:45,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:30:45,496 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:30:45,497 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:30:45,497 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:30:45,497 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:30:45,497 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:30:45,498 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:30:45,498 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:30:45,498 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:30:45,499 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:30:45,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:30:45,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:30:45,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:30:45,500 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:30:45,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:30:45,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:30:45,500 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:30:45,507 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:30:45,507 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:30:45,508 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:30:45,508 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:30:45,508 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:30:45,508 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:30:45,508 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:30:45,508 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:30:45,509 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:30:45,509 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:30:45,510 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:30:45,510 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:30:45,511 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:30:45,511 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan 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 -> Taipan 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 [2018-12-09 19:30:45,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:30:45,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:30:45,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:30:45,537 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:30:45,537 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:30:45,538 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-12-09 19:30:45,572 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/43b899344/aa73c34ed32342e0bb07c502e557e97f/FLAG57802c27d [2018-12-09 19:30:45,956 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:30:45,956 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-12-09 19:30:45,960 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/43b899344/aa73c34ed32342e0bb07c502e557e97f/FLAG57802c27d [2018-12-09 19:30:46,399 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/43b899344/aa73c34ed32342e0bb07c502e557e97f [2018-12-09 19:30:46,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:30:46,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:30:46,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:46,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:30:46,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:30:46,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8209d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46, skipping insertion in model container [2018-12-09 19:30:46,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:30:46,421 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:30:46,507 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:46,510 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:30:46,520 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:46,528 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:30:46,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46 WrapperNode [2018-12-09 19:30:46,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:46,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:46,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:30:46,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:30:46,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:46,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:30:46,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:30:46,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:30:46,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... [2018-12-09 19:30:46,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:30:46,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:30:46,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:30:46,582 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:30:46,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/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 [2018-12-09 19:30:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:30:46,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:30:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure y [2018-12-09 19:30:46,611 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2018-12-09 19:30:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:30:46,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:30:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:30:46,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:30:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:30:46,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:30:46,697 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:30:46,697 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:30:46,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:46 BoogieIcfgContainer [2018-12-09 19:30:46,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:30:46,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:30:46,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:30:46,699 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:30:46,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:30:46" (1/3) ... [2018-12-09 19:30:46,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26716321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:46, skipping insertion in model container [2018-12-09 19:30:46,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:46" (2/3) ... [2018-12-09 19:30:46,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26716321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:46, skipping insertion in model container [2018-12-09 19:30:46,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:46" (3/3) ... [2018-12-09 19:30:46,701 INFO L112 eAbstractionObserver]: Analyzing ICFG water_pid_true-unreach-call_true-termination.c [2018-12-09 19:30:46,707 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:30:46,711 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:30:46,720 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:30:46,737 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:30:46,738 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:30:46,738 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:30:46,738 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:30:46,738 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:30:46,738 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:30:46,738 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:30:46,738 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:30:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-12-09 19:30:46,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:30:46,751 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:46,751 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:30:46,752 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:46,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:46,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1227502395, now seen corresponding path program 1 times [2018-12-09 19:30:46,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:30:46,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:46,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:46,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:46,785 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:30:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:30:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:30:46,834 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:30:46,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:30:46 BoogieIcfgContainer [2018-12-09 19:30:46,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:30:46,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:30:46,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:30:46,852 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:30:46,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:46" (3/4) ... [2018-12-09 19:30:46,854 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:30:46,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:30:46,855 INFO L168 Benchmark]: Toolchain (without parser) took 453.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:30:46,856 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:30:46,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.81 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:46,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.81 ms. Allocated memory is still 1.0 GB. Free memory is still 938.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:30:46,857 INFO L168 Benchmark]: Boogie Preprocessor took 40.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:46,857 INFO L168 Benchmark]: RCFGBuilder took 115.73 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:46,857 INFO L168 Benchmark]: TraceAbstraction took 153.83 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:46,858 INFO L168 Benchmark]: Witness Printer took 2.72 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. [2018-12-09 19:30:46,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.81 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.81 ms. Allocated memory is still 1.0 GB. Free memory is still 938.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 115.73 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 153.83 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 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 someBinaryDOUBLEComparisonOperation at line 44, 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)=4] [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] return yn; VAL [\old(i)=0, \old(ui)=2, \old(yn)=8, \result=6, i=0, ui=2, yn=6] [L34] RET, 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] return yn; VAL [\old(i)=0, \old(ui)=2, \old(yn)=6, \result=3, i=0, ui=2, yn=3] [L38] RET, 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=5, epi=5, 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, 27 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=27occurred 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, 21 NumberOfCodeBlocks, 21 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 0.1.23-635dfa2 [2018-12-09 19:30:48,085 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:30:48,086 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:30:48,092 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:30:48,092 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:30:48,093 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:30:48,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:30:48,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:30:48,095 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:30:48,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:30:48,096 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:30:48,096 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:30:48,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:30:48,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:30:48,097 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:30:48,098 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:30:48,098 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:30:48,099 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:30:48,100 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:30:48,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:30:48,101 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:30:48,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:30:48,103 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:30:48,103 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:30:48,103 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:30:48,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:30:48,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:30:48,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:30:48,105 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:30:48,105 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:30:48,105 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:30:48,106 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:30:48,106 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:30:48,106 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:30:48,107 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:30:48,107 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:30:48,107 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:30:48,114 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:30:48,114 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:30:48,115 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:30:48,115 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:30:48,115 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:30:48,115 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:30:48,115 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:30:48,116 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:30:48,116 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:30:48,116 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:30:48,116 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:30:48,116 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:30:48,116 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:30:48,117 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:30:48,118 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:30:48,118 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:30:48,118 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:30:48,118 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:30:48,118 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:30:48,118 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:30:48,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:30:48,119 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:30:48,119 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:30:48,119 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:30:48,119 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:30:48,119 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:30:48,119 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:30:48,119 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:30:48,119 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_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan 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 -> Taipan 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 [2018-12-09 19:30:48,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:30:48,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:30:48,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:30:48,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:30:48,152 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:30:48,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-12-09 19:30:48,198 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/7cb05ea42/a9bdba0a54f644788bb4e6dacd1b6fc1/FLAGbc900dd57 [2018-12-09 19:30:48,607 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:30:48,607 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/sv-benchmarks/c/float-benchs/water_pid_true-unreach-call_true-termination.c [2018-12-09 19:30:48,611 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/7cb05ea42/a9bdba0a54f644788bb4e6dacd1b6fc1/FLAGbc900dd57 [2018-12-09 19:30:48,619 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/data/7cb05ea42/a9bdba0a54f644788bb4e6dacd1b6fc1 [2018-12-09 19:30:48,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:30:48,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:30:48,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:48,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:30:48,625 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:30:48,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25287d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48, skipping insertion in model container [2018-12-09 19:30:48,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:30:48,648 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:30:48,743 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:48,746 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:30:48,758 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:48,767 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:30:48,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48 WrapperNode [2018-12-09 19:30:48,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:48,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:48,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:30:48,768 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:30:48,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:48,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:30:48,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:30:48,781 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:30:48,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... [2018-12-09 19:30:48,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:30:48,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:30:48,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:30:48,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:30:48,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/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 [2018-12-09 19:30:48,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:30:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:30:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure y [2018-12-09 19:30:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2018-12-09 19:30:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:30:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:30:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:30:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:30:48,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:30:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:30:51,716 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:30:51,716 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:30:51,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:51 BoogieIcfgContainer [2018-12-09 19:30:51,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:30:51,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:30:51,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:30:51,718 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:30:51,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:30:48" (1/3) ... [2018-12-09 19:30:51,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fea9133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:51, skipping insertion in model container [2018-12-09 19:30:51,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:48" (2/3) ... [2018-12-09 19:30:51,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fea9133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:51, skipping insertion in model container [2018-12-09 19:30:51,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:51" (3/3) ... [2018-12-09 19:30:51,720 INFO L112 eAbstractionObserver]: Analyzing ICFG water_pid_true-unreach-call_true-termination.c [2018-12-09 19:30:51,726 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:30:51,731 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:30:51,740 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:30:51,757 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:30:51,757 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:30:51,757 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:30:51,758 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:30:51,758 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:30:51,758 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:30:51,758 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:30:51,758 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:30:51,758 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:30:51,767 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-12-09 19:30:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:30:51,771 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:51,771 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:30:51,772 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:51,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:51,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1227502395, now seen corresponding path program 1 times [2018-12-09 19:30:51,778 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:30:51,778 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/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 [2018-12-09 19:30:51,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:54,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:30:55,029 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-12-09 19:30:55,469 WARN L180 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 19:30:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:30:56,031 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:30:56,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:30:56,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 19:30:56,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:30:56,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:30:56,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:30:56,089 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 11 states. [2018-12-09 19:30:56,289 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-12-09 19:30:56,452 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-12-09 19:30:56,732 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-12-09 19:30:57,092 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-12-09 19:31:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:31:05,175 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2018-12-09 19:31:05,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:31:05,177 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-12-09 19:31:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:31:05,183 INFO L225 Difference]: With dead ends: 69 [2018-12-09 19:31:05,184 INFO L226 Difference]: Without dead ends: 37 [2018-12-09 19:31:05,186 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-12-09 19:31:05,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-09 19:31:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2018-12-09 19:31:05,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 19:31:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-12-09 19:31:05,218 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 21 [2018-12-09 19:31:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:31:05,218 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-12-09 19:31:05,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:31:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-12-09 19:31:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 19:31:05,220 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:31:05,220 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:31:05,220 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:31:05,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:31:05,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1115695378, now seen corresponding path program 1 times [2018-12-09 19:31:05,221 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:31:05,221 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06230c34-6390-4339-a433-efc37fdf2274/bin-2019/utaipan/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 [2018-12-09 19:31:05,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:31:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:31:10,537 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:31:10,795 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 19:31:11,743 WARN L180 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-12-09 19:31:32,907 WARN L180 SmtUtils]: Spent 8.36 s on a formula simplification that was a NOOP. DAG size: 27 [2018-12-09 19:31:35,017 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 [2018-12-09 19:31:37,122 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 [2018-12-09 19:31:39,274 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 [2018-12-09 19:31:45,433 WARN L180 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-12-09 19:31:47,530 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 [2018-12-09 19:31:55,077 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 1 times theorem prover too weak. 3 trivial. 5 not checked. [2018-12-09 19:31:55,077 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:32:09,413 WARN L180 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-12-09 19:32:09,794 WARN L180 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 19:32:10,057 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 19:32:11,648 WARN L180 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 15 [2018-12-09 19:32:12,329 WARN L180 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 19:32:37,589 WARN L180 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-09 19:32:39,642 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 [2018-12-09 19:32:41,706 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 [2018-12-09 19:32:44,482 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 [2018-12-09 19:32:47,285 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 [2018-12-09 19:32:47,856 WARN L180 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 19:32:48,409 WARN L180 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 19:32:49,309 WARN L180 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-09 19:32:50,337 WARN L180 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 19:32:53,136 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 [2018-12-09 19:32:55,941 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 [2018-12-09 19:32:59,236 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 [2018-12-09 19:33:02,044 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-09 19:33:02,245 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-12-09 19:33:02,247 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: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) ... 40 more [2018-12-09 19:33:02,252 INFO L168 Benchmark]: Toolchain (without parser) took 133630.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.7 MB in the beginning and 935.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 159.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:33:02,253 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:33:02,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.05 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:33:02,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.60 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:33:02,254 INFO L168 Benchmark]: Boogie Preprocessor took 16.43 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:33:02,254 INFO L168 Benchmark]: RCFGBuilder took 2918.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:33:02,255 INFO L168 Benchmark]: TraceAbstraction took 130534.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.5 MB in the end (delta: 184.3 MB). Peak memory consumption was 184.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:33:02,257 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.05 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.60 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.43 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2918.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 130534.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.5 MB in the end (delta: 184.3 MB). Peak memory consumption was 184.3 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...