./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 97ac2503801a101f5a44ae44e4a77e81fa872959 ............................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 97ac2503801a101f5a44ae44e4a77e81fa872959 ......................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 19:05:21,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:05:21,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:05:21,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:05:21,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:05:21,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:05:21,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:05:21,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:05:21,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:05:21,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:05:21,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:05:21,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:05:21,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:05:21,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:05:21,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:05:21,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:05:21,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:05:21,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:05:21,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:05:21,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:05:21,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:05:21,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:05:21,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:05:21,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:05:21,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:05:21,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:05:21,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:05:21,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:05:21,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:05:21,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:05:21,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:05:21,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:05:21,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:05:21,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:05:21,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:05:21,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:05:21,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:05:21,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:05:21,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:05:21,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:05:21,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:05:21,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:05:21,690 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:05:21,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:05:21,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:05:21,691 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:05:21,691 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:05:21,692 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:05:21,692 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:05:21,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:05:21,692 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:05:21,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:05:21,693 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:05:21,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:05:21,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:05:21,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:05:21,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:05:21,695 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:05:21,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:05:21,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:05:21,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:05:21,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:05:21,695 INFO L138 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/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 -> 97ac2503801a101f5a44ae44e4a77e81fa872959 [2019-12-07 19:05:21,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:05:21,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:05:21,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:05:21,803 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:05:21,804 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:05:21,804 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2019-12-07 19:05:21,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/6f6167ee6/50a746711f6646969d804946c88c8878/FLAG3d1bcbbde [2019-12-07 19:05:22,308 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:05:22,308 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2019-12-07 19:05:22,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/6f6167ee6/50a746711f6646969d804946c88c8878/FLAG3d1bcbbde [2019-12-07 19:05:22,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/6f6167ee6/50a746711f6646969d804946c88c8878 [2019-12-07 19:05:22,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:05:22,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:05:22,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:05:22,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:05:22,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:05:22,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:05:22" (1/1) ... [2019-12-07 19:05:22,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354778c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:22, skipping insertion in model container [2019-12-07 19:05:22,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:05:22" (1/1) ... [2019-12-07 19:05:22,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:05:22,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:05:22,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:05:23,002 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:05:23,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:05:23,033 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:05:23,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23 WrapperNode [2019-12-07 19:05:23,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:05:23,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:05:23,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:05:23,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:05:23,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:05:23,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:05:23,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:05:23,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:05:23,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... [2019-12-07 19:05:23,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:05:23,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:05:23,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:05:23,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:05:23,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 [2019-12-07 19:05:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:05:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 19:05:23,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 19:05:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 19:05:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:05:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:05:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 19:05:23,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:05:23,248 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:05:23,248 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 19:05:23,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:05:23 BoogieIcfgContainer [2019-12-07 19:05:23,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:05:23,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:05:23,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:05:23,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:05:23,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:05:22" (1/3) ... [2019-12-07 19:05:23,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cae77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:05:23, skipping insertion in model container [2019-12-07 19:05:23,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:23" (2/3) ... [2019-12-07 19:05:23,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cae77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:05:23, skipping insertion in model container [2019-12-07 19:05:23,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:05:23" (3/3) ... [2019-12-07 19:05:23,253 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2019-12-07 19:05:23,260 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:05:23,263 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:05:23,271 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:05:23,285 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:05:23,285 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:05:23,285 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:05:23,285 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:05:23,286 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:05:23,286 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:05:23,286 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:05:23,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:05:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-12-07 19:05:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 19:05:23,298 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:05:23,299 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:05:23,299 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:05:23,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:05:23,303 INFO L82 PathProgramCache]: Analyzing trace with hash 179408343, now seen corresponding path program 1 times [2019-12-07 19:05:23,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:05:23,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166980093] [2019-12-07 19:05:23,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:05:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:05:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:05:23,403 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 19:05:23,404 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:05:23,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:05:23 BoogieIcfgContainer [2019-12-07 19:05:23,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:05:23,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:05:23,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:05:23,423 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:05:23,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:05:23" (3/4) ... [2019-12-07 19:05:23,426 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 19:05:23,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:05:23,427 INFO L168 Benchmark]: Toolchain (without parser) took 596.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -115.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:05:23,428 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:05:23,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:05:23,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.03 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. [2019-12-07 19:05:23,429 INFO L168 Benchmark]: Boogie Preprocessor took 15.05 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:05:23,429 INFO L168 Benchmark]: RCFGBuilder took 177.21 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:05:23,430 INFO L168 Benchmark]: TraceAbstraction took 173.17 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:05:23,430 INFO L168 Benchmark]: Witness Printer took 2.77 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. [2019-12-07 19:05:23,432 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.03 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. * Boogie Preprocessor took 15.05 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.21 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 173.17 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 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: 54]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32. Possible FailurePath: [L1] int __return_main; [L12] float __return_72; [L13] int __return_87; [L16] float main__a; [L17] float main__r; [L18] main__a = __VERIFIER_nondet_float() [L19] int main____CPAchecker_TMP_0; VAL [__return_72=0, __return_87=0, __return_main=0] [L20] COND TRUE main__a >= 0.10000000149011612 VAL [__return_72=0, __return_87=0, __return_main=0] [L22] COND TRUE main__a <= 100.0 [L24] main____CPAchecker_TMP_0 = 1 VAL [__return_72=0, __return_87=0, __return_main=0] [L25] COND TRUE main____CPAchecker_TMP_0 != 0 [L28] float __tmp_1; [L29] __tmp_1 = main__a [L30] float InvSqrt__x; [L31] InvSqrt__x = __tmp_1 [L32] float InvSqrt__xhalf = 0.5 * InvSqrt__x; [L33] union float_int InvSqrt__i; [L34] InvSqrt__i.f = InvSqrt__x [L35] EXPR InvSqrt__i.i [L35] InvSqrt__i.i = 1597463007 - ((InvSqrt__i.i) >> 1) [L36] EXPR InvSqrt__i.f [L36] InvSqrt__x = InvSqrt__i.f [L37] InvSqrt__x = InvSqrt__x * (1.5 - ((InvSqrt__xhalf * InvSqrt__x) * InvSqrt__x)) [L38] __return_72 = InvSqrt__x [L39] main__r = __return_72 [L40] int main____CPAchecker_TMP_1; VAL [__return_72=5, __return_87=0, __return_main=0] [L41] COND FALSE !(main__r >= 0.0) VAL [__return_72=5, __return_87=0, __return_main=0] [L67] main____CPAchecker_TMP_1 = 0 VAL [__return_72=5, __return_87=0, __return_main=0] [L48] int __tmp_2; [L49] __tmp_2 = main____CPAchecker_TMP_1 [L50] int __VERIFIER_assert__cond; [L51] __VERIFIER_assert__cond = __tmp_2 VAL [__return_72=5, __return_87=0, __return_main=0] [L52] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_72=5, __return_87=0, __return_main=0] [L54] __VERIFIER_error() VAL [__return_72=5, __return_87=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-12-07 19:05:24,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:05:24,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:05:24,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:05:24,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:05:24,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:05:24,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:05:24,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:05:24,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:05:24,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:05:24,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:05:24,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:05:24,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:05:24,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:05:24,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:05:24,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:05:24,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:05:24,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:05:24,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:05:24,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:05:24,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:05:24,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:05:24,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:05:24,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:05:24,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:05:24,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:05:24,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:05:24,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:05:24,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:05:24,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:05:24,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:05:24,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:05:24,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:05:24,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:05:24,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:05:24,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:05:24,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:05:24,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:05:24,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:05:24,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:05:24,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:05:24,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:05:24,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:05:24,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:05:24,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:05:24,828 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:05:24,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:05:24,829 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:05:24,829 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:05:24,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:05:24,829 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:05:24,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:05:24,830 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:05:24,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:05:24,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:05:24,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:05:24,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:05:24,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:05:24,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:05:24,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:05:24,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:05:24,832 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:05:24,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:05:24,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:05:24,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:05:24,833 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 -> 97ac2503801a101f5a44ae44e4a77e81fa872959 [2019-12-07 19:05:24,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:05:25,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:05:25,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:05:25,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:05:25,009 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:05:25,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2019-12-07 19:05:25,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/cd6668781/2d25187e98e4467188f18fa8a65ef197/FLAG35d35e79f [2019-12-07 19:05:25,470 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:05:25,471 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2019-12-07 19:05:25,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/cd6668781/2d25187e98e4467188f18fa8a65ef197/FLAG35d35e79f [2019-12-07 19:05:25,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/utaipan/data/cd6668781/2d25187e98e4467188f18fa8a65ef197 [2019-12-07 19:05:25,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:05:25,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:05:25,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:05:25,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:05:25,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:05:25,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:05:25" (1/1) ... [2019-12-07 19:05:25,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0f9973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:25, skipping insertion in model container [2019-12-07 19:05:25,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:05:25" (1/1) ... [2019-12-07 19:05:25,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:05:25,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:05:25,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:05:25,998 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:05:26,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:05:26,031 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:05:26,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26 WrapperNode [2019-12-07 19:05:26,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:05:26,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:05:26,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:05:26,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:05:26,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:05:26,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:05:26,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:05:26,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:05:26,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... [2019-12-07 19:05:26,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:05:26,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:05:26,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:05:26,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:05:26,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 [2019-12-07 19:05:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:05:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 19:05:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 19:05:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:05:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:05:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 19:05:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:05:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 19:05:28,710 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:05:28,710 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 19:05:28,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:05:28 BoogieIcfgContainer [2019-12-07 19:05:28,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:05:28,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:05:28,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:05:28,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:05:28,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:05:25" (1/3) ... [2019-12-07 19:05:28,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220fd927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:05:28, skipping insertion in model container [2019-12-07 19:05:28,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:05:26" (2/3) ... [2019-12-07 19:05:28,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220fd927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:05:28, skipping insertion in model container [2019-12-07 19:05:28,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:05:28" (3/3) ... [2019-12-07 19:05:28,716 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2019-12-07 19:05:28,723 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:05:28,726 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:05:28,734 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:05:28,749 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:05:28,749 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:05:28,749 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:05:28,749 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:05:28,749 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:05:28,749 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:05:28,750 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:05:28,750 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:05:28,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 19:05:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 19:05:28,763 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:05:28,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:05:28,764 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:05:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:05:28,768 INFO L82 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2019-12-07 19:05:28,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:05:28,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818407811] [2019-12-07 19:05:28,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5065a2d4-d252-470c-9d36-abc7b2468622/bin/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 [2019-12-07 19:05:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:05:36,607 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 19:05:36,612 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:05:36,976 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-12-07 19:05:37,489 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-12-07 19:05:39,602 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (= c_ULTIMATE.start_main_~main__r~0 ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 19:05:45,932 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (and (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse1) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100.0))))) is different from false [2019-12-07 19:05:48,032 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (and (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse1) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100.0))))) is different from true [2019-12-07 19:06:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:00,753 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:05,134 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~main__a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse0) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) .cse0) .cse0))))))) (_ +zero 11 53)))) is different from true [2019-12-07 19:06:08,047 WARN L838 $PredicateComparison]: unable to prove that (or (not (fp.leq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0) ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~main__a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse0) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) .cse0) .cse0))))))) (_ +zero 11 53))))) is different from false [2019-12-07 19:06:10,211 WARN L860 $PredicateComparison]: unable to prove that (or (not (fp.leq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0) ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~main__a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse0) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) .cse0) .cse0))))))) (_ +zero 11 53))))) is different from true [2019-12-07 19:06:12,317 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)))))) is different from false [2019-12-07 19:06:14,482 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)))))) is different from true [2019-12-07 19:06:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:14,486 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818407811] [2019-12-07 19:06:14,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:14,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2019-12-07 19:06:14,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715216508] [2019-12-07 19:06:14,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 19:06:14,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:14,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 19:06:14,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=8, NotChecked=60, Total=110 [2019-12-07 19:06:14,505 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 11 states. [2019-12-07 19:06:16,765 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 19:06:18,928 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|))))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 19:06:21,108 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~main__a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) .cse1) .cse1))))))) (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2019-12-07 19:06:27,424 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-12-07 19:06:27,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:06:27,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:06:27,628 FATAL L? ?]: 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:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) 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:120) 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:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 45 more [2019-12-07 19:06:27,637 INFO L168 Benchmark]: Toolchain (without parser) took 61788.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -88.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:27,637 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:06:27,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:27,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:27,639 INFO L168 Benchmark]: Boogie Preprocessor took 19.17 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. [2019-12-07 19:06:27,640 INFO L168 Benchmark]: RCFGBuilder took 2606.02 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:27,640 INFO L168 Benchmark]: TraceAbstraction took 58922.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:27,643 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.17 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. * RCFGBuilder took 2606.02 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 58922.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 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...