./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 0a264ac1dee459017a9965df88403c901cb7750b ................................................................................................................................................................................................................................. 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/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 0a264ac1dee459017a9965df88403c901cb7750b ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:37,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:37,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:37,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:37,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:37,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:37,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:37,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:37,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:37,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:37,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:37,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:37,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:37,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:37,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:37,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:37,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:37,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:37,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:37,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:37,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:37,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:37,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:37,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:37,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:37,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:37,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:37,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:37,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:37,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:37,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:37,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:37,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:37,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:37,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:37,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:37,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:37,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:37,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:37,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:37,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:37,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:37,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:37,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:37,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:37,911 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:37,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:37,911 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:37,911 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:37,911 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:37,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:37,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:37,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:37,912 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:37,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:37,913 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:37,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:37,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:37,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:37,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:37,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:37,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:37,914 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:37,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:37,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:37,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:37,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:37,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:37,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:37,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:37,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:37,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:37,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:37,916 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:37,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:37,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:37,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:37,917 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/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2019-10-22 11:22:37,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:37,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:37,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:37,954 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:37,954 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:37,955 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2019-10-22 11:22:38,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/50a4448df/37d9ad7520804a7c9d50d54b385fe3b1/FLAGa0e1451c5 [2019-10-22 11:22:38,384 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:38,385 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/sv-benchmarks/c/float-benchs/inv_square_int.c [2019-10-22 11:22:38,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/50a4448df/37d9ad7520804a7c9d50d54b385fe3b1/FLAGa0e1451c5 [2019-10-22 11:22:38,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/50a4448df/37d9ad7520804a7c9d50d54b385fe3b1 [2019-10-22 11:22:38,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:38,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:38,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:38,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:38,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:38,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572e2db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38, skipping insertion in model container [2019-10-22 11:22:38,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,417 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:38,428 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:38,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:38,571 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:38,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:38,675 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:38,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38 WrapperNode [2019-10-22 11:22:38,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:38,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:38,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:38,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:38,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:38,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:38,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:38,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:38,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... [2019-10-22 11:22:38,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:38,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:38,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:38,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:38,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 [2019-10-22 11:22:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:38,958 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:38,958 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:22:38,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:38 BoogieIcfgContainer [2019-10-22 11:22:38,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:38,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:38,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:38,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:38,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:38" (1/3) ... [2019-10-22 11:22:38,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0205f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:38, skipping insertion in model container [2019-10-22 11:22:38,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:38" (2/3) ... [2019-10-22 11:22:38,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0205f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:38, skipping insertion in model container [2019-10-22 11:22:38,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:38" (3/3) ... [2019-10-22 11:22:38,969 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-10-22 11:22:38,978 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:38,986 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:38,999 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:39,027 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:39,029 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:39,030 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:39,030 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:39,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:39,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:39,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:39,031 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:39,044 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 11:22:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:22:39,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:39,052 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:22:39,053 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:39,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:39,060 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 11:22:39,068 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:39,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761422030] [2019-10-22 11:22:39,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:39,069 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:39,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:39,179 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:39,180 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:39,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:39 BoogieIcfgContainer [2019-10-22 11:22:39,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:39,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:39,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:39,196 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:39,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:38" (3/4) ... [2019-10-22 11:22:39,200 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:22:39,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:39,202 INFO L168 Benchmark]: Toolchain (without parser) took 797.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:39,203 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:39,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -213.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:39,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:39,205 INFO L168 Benchmark]: Boogie Preprocessor took 18.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:39,205 INFO L168 Benchmark]: RCFGBuilder took 231.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:39,206 INFO L168 Benchmark]: TraceAbstraction took 233.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:39,206 INFO L168 Benchmark]: Witness Printer took 4.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:39,209 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -213.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 233.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] int x; [L13] float y, z; [L15] x = __VERIFIER_nondet_int() [L18] y = x*x - 2.f [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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, 3 NumberOfCodeBlocks, 3 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 0.1.24-cad4683 [2019-10-22 11:22:41,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:41,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:41,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:41,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:41,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:41,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:41,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:41,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:41,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:41,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:41,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:41,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:41,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:41,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:41,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:41,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:41,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:41,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:41,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:41,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:41,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:41,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:41,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:41,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:41,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:41,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:41,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:41,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:41,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:41,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:41,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:41,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:41,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:41,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:41,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:41,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:41,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:41,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:41,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:41,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:41,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:41,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:41,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:41,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:41,381 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:41,381 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:41,381 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:41,381 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:41,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:41,382 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:41,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:41,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:41,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:41,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:41,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:41,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:41,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:41,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:41,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:41,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:41,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:41,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:41,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:41,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:41,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:41,386 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:41,386 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:41,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:41,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:41,387 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/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2019-10-22 11:22:41,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:41,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:41,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:41,432 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:41,432 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:41,433 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2019-10-22 11:22:41,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/517a65bb5/a533b015ce554659abb5846e75d323d9/FLAG5935011ef [2019-10-22 11:22:41,830 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:41,831 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/sv-benchmarks/c/float-benchs/inv_square_int.c [2019-10-22 11:22:41,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/517a65bb5/a533b015ce554659abb5846e75d323d9/FLAG5935011ef [2019-10-22 11:22:42,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/data/517a65bb5/a533b015ce554659abb5846e75d323d9 [2019-10-22 11:22:42,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:42,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:42,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:42,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:42,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:42,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339d13da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42, skipping insertion in model container [2019-10-22 11:22:42,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,228 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:42,241 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:42,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:42,382 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:42,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:42,411 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:42,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42 WrapperNode [2019-10-22 11:22:42,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:42,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:42,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:42,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:42,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:42,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:42,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:42,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:42,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... [2019-10-22 11:22:42,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:42,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:42,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:42,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:42,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 [2019-10-22 11:22:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:43,162 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:43,162 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:22:43,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:43 BoogieIcfgContainer [2019-10-22 11:22:43,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:43,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:43,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:43,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:43,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:42" (1/3) ... [2019-10-22 11:22:43,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cfb47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:43, skipping insertion in model container [2019-10-22 11:22:43,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:42" (2/3) ... [2019-10-22 11:22:43,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cfb47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:43, skipping insertion in model container [2019-10-22 11:22:43,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:43" (3/3) ... [2019-10-22 11:22:43,173 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-10-22 11:22:43,186 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:43,194 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:43,209 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:43,233 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:43,234 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:43,234 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:43,234 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:43,234 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:43,234 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:43,234 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:43,235 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 11:22:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:22:43,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:43,259 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:22:43,261 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:43,266 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-10-22 11:22:43,276 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:43,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878632353] [2019-10-22 11:22:43,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/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 [2019-10-22 11:22:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:43,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:22:43,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:45,255 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:45,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878632353] [2019-10-22 11:22:45,279 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:45,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:22:45,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370406402] [2019-10-22 11:22:45,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:45,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:45,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:45,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:45,295 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-10-22 11:22:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:45,317 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-10-22 11:22:45,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:45,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 11:22:45,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:45,325 INFO L225 Difference]: With dead ends: 12 [2019-10-22 11:22:45,326 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:22:45,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:22:45,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:22:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:22:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:22:45,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 11:22:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:45,356 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:22:45,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:22:45,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:22:45,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:22:45,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:22:45,611 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:22:45,611 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:22:45,611 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:22:45,611 INFO L439 ceAbstractionStarter]: At program point L21(lines 10 22) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-10-22 11:22:45,612 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-10-22 11:22:45,612 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-10-22 11:22:45,612 INFO L443 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-10-22 11:22:45,612 INFO L439 ceAbstractionStarter]: At program point L8-3(line 8) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-10-22 11:22:45,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:45 BoogieIcfgContainer [2019-10-22 11:22:45,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:45,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:45,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:45,626 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:45,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:43" (3/4) ... [2019-10-22 11:22:45,630 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:22:45,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:22:45,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:22:45,678 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ee953e04-e78d-49c9-b2b1-1f5accd90da5/bin/utaipan/witness.graphml [2019-10-22 11:22:45,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:45,681 INFO L168 Benchmark]: Toolchain (without parser) took 3465.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -114.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,682 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:45,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.27 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.08 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:45,683 INFO L168 Benchmark]: Boogie Preprocessor took 79.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,684 INFO L168 Benchmark]: RCFGBuilder took 641.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,684 INFO L168 Benchmark]: TraceAbstraction took 2460.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,684 INFO L168 Benchmark]: Witness Printer took 52.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:45,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 197.27 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 30.08 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 641.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2460.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 4 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be correct! Received shutdown request...