./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 ................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_float_ptr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:27:22,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:27:22,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:27:22,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:27:22,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:27:22,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:27:22,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:27:22,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:27:22,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:27:22,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:27:22,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:27:22,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:27:22,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:27:22,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:27:22,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:27:22,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:27:22,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:27:22,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:27:22,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:27:22,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:27:22,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:27:22,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:27:22,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:27:22,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:27:22,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:27:22,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:27:22,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:27:22,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:27:22,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:27:22,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:27:22,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:27:22,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:27:22,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:27:22,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:27:22,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:27:22,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:27:22,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:27:22,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:27:22,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:27:22,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:27:22,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:27:22,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:27:22,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:27:22,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:27:22,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:27:22,880 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:27:22,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:27:22,880 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:27:22,880 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:27:22,880 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:27:22,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:27:22,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:27:22,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:27:22,881 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:27:22,881 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:27:22,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:27:22,882 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:27:22,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:27:22,882 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:27:22,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:27:22,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:27:22,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:27:22,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:27:22,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:27:22,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:27:22,884 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:27:22,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:27:22,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:27:22,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:27:22,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:27:22,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:27:22,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:27:22,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:27:22,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:27:22,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:27:22,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:27:22,886 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:27:22,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:27:22,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:27:22,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:27:22,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:27:22,887 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2020-12-09 07:27:23,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:27:23,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:27:23,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:27:23,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:27:23,078 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:27:23,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-12-09 07:27:23,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/6b0888e0c/76351a384989455e861f8fb46b145990/FLAG1217ba080 [2020-12-09 07:27:23,489 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:27:23,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-12-09 07:27:23,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/6b0888e0c/76351a384989455e861f8fb46b145990/FLAG1217ba080 [2020-12-09 07:27:23,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/6b0888e0c/76351a384989455e861f8fb46b145990 [2020-12-09 07:27:23,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:27:23,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:27:23,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:27:23,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:27:23,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:27:23,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e977e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23, skipping insertion in model container [2020-12-09 07:27:23,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:27:23,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:27:23,641 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2020-12-09 07:27:23,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:27:23,662 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:27:23,670 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2020-12-09 07:27:23,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:27:23,687 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:27:23,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23 WrapperNode [2020-12-09 07:27:23,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:27:23,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:27:23,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:27:23,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:27:23,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:27:23,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:27:23,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:27:23,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:27:23,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... [2020-12-09 07:27:23,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:27:23,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:27:23,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:27:23,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:27:23,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/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 [2020-12-09 07:27:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 07:27:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:27:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 07:27:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 07:27:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 07:27:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:27:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:27:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 07:27:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:27:24,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:27:24,004 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-09 07:27:24,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:27:24 BoogieIcfgContainer [2020-12-09 07:27:24,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:27:24,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:27:24,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:27:24,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:27:24,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:27:23" (1/3) ... [2020-12-09 07:27:24,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7cb58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:27:24, skipping insertion in model container [2020-12-09 07:27:24,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:23" (2/3) ... [2020-12-09 07:27:24,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7cb58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:27:24, skipping insertion in model container [2020-12-09 07:27:24,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:27:24" (3/3) ... [2020-12-09 07:27:24,015 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-12-09 07:27:24,028 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:27:24,030 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:27:24,038 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:27:24,054 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:27:24,055 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:27:24,055 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:27:24,055 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:27:24,055 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:27:24,055 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:27:24,055 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:27:24,055 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:27:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-09 07:27:24,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 07:27:24,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:27:24,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 07:27:24,068 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:27:24,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:27:24,072 INFO L82 PathProgramCache]: Analyzing trace with hash 2125426307, now seen corresponding path program 1 times [2020-12-09 07:27:24,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:27:24,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140481351] [2020-12-09 07:27:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:27:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:27:24,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:27:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:27:24,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:27:24,230 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 07:27:24,230 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:27:24,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 07:27:24,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:27:24 BoogieIcfgContainer [2020-12-09 07:27:24,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:27:24,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:27:24,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:27:24,253 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:27:24,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:27:24" (3/4) ... [2020-12-09 07:27:24,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 07:27:24,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:27:24,263 INFO L168 Benchmark]: Toolchain (without parser) took 753.20 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 82.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:24,263 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 75.5 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 35.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:27:24,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.68 ms. Allocated memory is still 104.9 MB. Free memory was 72.0 MB in the beginning and 81.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:24,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.68 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 79.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:24,265 INFO L168 Benchmark]: Boogie Preprocessor took 18.28 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:27:24,266 INFO L168 Benchmark]: RCFGBuilder took 272.71 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 58.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:24,266 INFO L168 Benchmark]: TraceAbstraction took 243.25 ms. Allocated memory is still 104.9 MB. Free memory was 57.7 MB in the beginning and 43.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:24,267 INFO L168 Benchmark]: Witness Printer took 8.71 ms. Allocated memory is still 104.9 MB. Free memory was 43.0 MB in the beginning and 82.1 MB in the end (delta: -39.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:24,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 75.5 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 35.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 177.68 ms. Allocated memory is still 104.9 MB. Free memory was 72.0 MB in the beginning and 81.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.68 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 79.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.28 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 78.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 272.71 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 58.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 243.25 ms. Allocated memory is still 104.9 MB. Free memory was 57.7 MB in the beginning and 43.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 8.71 ms. Allocated memory is still 104.9 MB. Free memory was 43.0 MB in the beginning and 82.1 MB in the end (delta: -39.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 21, overapproximation of bitwiseAnd at line 13. Possible FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L10] double dmax; [L11] float f; [L13] EXPR \read(d) [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L5] COND TRUE !(cond) [L5] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 6 NumberOfCodeBlocks, 6 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, ACCELERATED_INTERPOLATION: 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 0.2.0-7b2dab5 [2020-12-09 07:27:25,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:27:25,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:27:25,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:27:25,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:27:25,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:27:25,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:27:25,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:27:25,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:27:25,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:27:25,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:27:25,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:27:25,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:27:25,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:27:25,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:27:25,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:27:25,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:27:25,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:27:25,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:27:25,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:27:25,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:27:25,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:27:25,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:27:25,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:27:25,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:27:25,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:27:25,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:27:25,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:27:25,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:27:25,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:27:25,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:27:25,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:27:25,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:27:25,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:27:25,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:27:25,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:27:25,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:27:25,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:27:25,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:27:25,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:27:25,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:27:25,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:27:25,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:27:25,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:27:25,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:27:25,961 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:27:25,961 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:27:25,961 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:27:25,962 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:27:25,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:27:25,962 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:27:25,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:27:25,963 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:27:25,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:27:25,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:27:25,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:27:25,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:27:25,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:27:25,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:27:25,964 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:27:25,964 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:27:25,965 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:27:25,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:27:25,965 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:27:25,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:27:25,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:27:25,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:27:25,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:27:25,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:27:25,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:27:25,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:27:25,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:27:25,967 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:27:25,967 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:27:25,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:27:25,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:27:25,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:27:25,968 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2020-12-09 07:27:26,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:27:26,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:27:26,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:27:26,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:27:26,241 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:27:26,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/../../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-12-09 07:27:26,282 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/c021725a9/759d9d70986e4673bd33f1743a194404/FLAG157b37b37 [2020-12-09 07:27:26,716 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:27:26,716 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2020-12-09 07:27:26,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/c021725a9/759d9d70986e4673bd33f1743a194404/FLAG157b37b37 [2020-12-09 07:27:26,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/data/c021725a9/759d9d70986e4673bd33f1743a194404 [2020-12-09 07:27:26,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:27:26,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:27:26,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:27:26,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:27:26,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:27:26,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef3f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26, skipping insertion in model container [2020-12-09 07:27:26,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:27:26,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:27:26,856 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2020-12-09 07:27:26,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:27:26,876 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:27:26,884 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/sv-benchmarks/c/float-benchs/cast_float_ptr.c[362,375] [2020-12-09 07:27:26,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:27:26,903 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:27:26,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26 WrapperNode [2020-12-09 07:27:26,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:27:26,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:27:26,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:27:26,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:27:26,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:27:26,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:27:26,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:27:26,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:27:26,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... [2020-12-09 07:27:26,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:27:26,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:27:26,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:27:26,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:27:26,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/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 [2020-12-09 07:27:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:27:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 07:27:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:27:27,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:27:27,459 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-09 07:27:27,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:27:27 BoogieIcfgContainer [2020-12-09 07:27:27,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:27:27,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:27:27,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:27:27,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:27:27,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:27:26" (1/3) ... [2020-12-09 07:27:27,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61475d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:27:27, skipping insertion in model container [2020-12-09 07:27:27,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:27:26" (2/3) ... [2020-12-09 07:27:27,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61475d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:27:27, skipping insertion in model container [2020-12-09 07:27:27,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:27:27" (3/3) ... [2020-12-09 07:27:27,468 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2020-12-09 07:27:27,481 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:27:27,484 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:27:27,495 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:27:27,515 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:27:27,516 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:27:27,516 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:27:27,516 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:27:27,516 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:27:27,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:27:27,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:27:27,516 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:27:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 07:27:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 07:27:27,530 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:27:27,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:27:27,531 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:27:27,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:27:27,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2020-12-09 07:27:27,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:27:27,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444744928] [2020-12-09 07:27:27,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/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 [2020-12-09 07:27:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:27:27,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 07:27:27,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:27:27,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-09 07:27:27,734 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-09 07:27:27,738 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 07:27:27,768 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 07:27:27,776 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 07:27:27,777 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:110, output treesize:112 [2020-12-09 07:27:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:27:28,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:27:28,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444744928] [2020-12-09 07:27:28,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:27:28,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 07:27:28,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890918644] [2020-12-09 07:27:28,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 07:27:28,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:27:28,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 07:27:28,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 07:27:28,022 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2020-12-09 07:27:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:27:28,407 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-12-09 07:27:28,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 07:27:28,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-09 07:27:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:27:28,419 INFO L225 Difference]: With dead ends: 30 [2020-12-09 07:27:28,419 INFO L226 Difference]: Without dead ends: 10 [2020-12-09 07:27:28,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 07:27:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-09 07:27:28,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-09 07:27:28,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 07:27:28,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-12-09 07:27:28,439 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2020-12-09 07:27:28,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:27:28,439 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-12-09 07:27:28,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 07:27:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-12-09 07:27:28,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 07:27:28,440 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:27:28,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:27:28,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:27:28,642 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:27:28,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:27:28,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1271627341, now seen corresponding path program 1 times [2020-12-09 07:27:28,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:27:28,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100082424] [2020-12-09 07:27:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 07:27:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:27:28,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:27:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:27:28,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:27:28,832 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 07:27:28,832 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:27:29,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 07:27:29,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:27:29 BoogieIcfgContainer [2020-12-09 07:27:29,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:27:29,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:27:29,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:27:29,062 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:27:29,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:27:27" (3/4) ... [2020-12-09 07:27:29,063 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 07:27:29,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7fa75ba8-3182-49c3-b418-162d6e050dad/bin/utaipan/witness.graphml [2020-12-09 07:27:29,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:27:29,092 INFO L168 Benchmark]: Toolchain (without parser) took 2356.75 ms. Allocated memory was 79.7 MB in the beginning and 115.3 MB in the end (delta: 35.7 MB). Free memory was 45.7 MB in the beginning and 76.3 MB in the end (delta: -30.6 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:29,092 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 79.7 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:27:29,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.62 ms. Allocated memory is still 79.7 MB. Free memory was 45.6 MB in the beginning and 57.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:29,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.37 ms. Allocated memory is still 79.7 MB. Free memory was 57.9 MB in the beginning and 63.2 MB in the end (delta: -5.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:29,093 INFO L168 Benchmark]: Boogie Preprocessor took 21.88 ms. Allocated memory is still 79.7 MB. Free memory was 63.2 MB in the beginning and 61.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:27:29,094 INFO L168 Benchmark]: RCFGBuilder took 488.22 ms. Allocated memory is still 79.7 MB. Free memory was 61.6 MB in the beginning and 44.7 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:29,094 INFO L168 Benchmark]: TraceAbstraction took 1598.85 ms. Allocated memory was 79.7 MB in the beginning and 115.3 MB in the end (delta: 35.7 MB). Free memory was 44.4 MB in the beginning and 78.4 MB in the end (delta: -34.0 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:29,095 INFO L168 Benchmark]: Witness Printer took 29.51 ms. Allocated memory is still 115.3 MB. Free memory was 78.4 MB in the beginning and 76.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:27:29,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 79.7 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 167.62 ms. Allocated memory is still 79.7 MB. Free memory was 45.6 MB in the beginning and 57.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.37 ms. Allocated memory is still 79.7 MB. Free memory was 57.9 MB in the beginning and 63.2 MB in the end (delta: -5.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.88 ms. Allocated memory is still 79.7 MB. Free memory was 63.2 MB in the beginning and 61.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 488.22 ms. Allocated memory is still 79.7 MB. Free memory was 61.6 MB in the beginning and 44.7 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1598.85 ms. Allocated memory was 79.7 MB in the beginning and 115.3 MB in the end (delta: 35.7 MB). Free memory was 44.4 MB in the beginning and 78.4 MB in the end (delta: -34.0 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Witness Printer took 29.51 ms. Allocated memory is still 115.3 MB. Free memory was 78.4 MB in the beginning and 76.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L10] double dmax; [L11] float f; [L13] EXPR \read(d) [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L5] COND TRUE !(cond) [L5] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 16 SDslu, 13 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 3 QuantifiedInterpolants, 2760 SizeOfPredicates, 3 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...