./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e ........................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:26:53,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:26:53,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:26:53,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:26:53,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:26:53,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:26:53,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:26:53,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:26:53,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:26:53,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:26:53,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:26:53,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:26:53,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:26:53,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:26:53,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:26:53,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:26:53,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:26:53,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:26:53,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:26:53,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:26:53,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:26:53,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:26:53,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:26:53,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:26:53,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:26:53,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:26:53,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:26:53,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:26:53,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:26:53,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:26:53,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:26:53,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:26:53,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:26:53,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:26:53,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:26:53,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:26:53,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:26:53,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:26:53,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:26:53,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:26:53,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:26:53,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:26:53,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:26:53,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:26:53,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:26:53,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:26:53,517 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:26:53,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:26:53,518 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:26:53,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:26:53,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:26:53,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:26:53,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:26:53,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:26:53,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:26:53,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:26:53,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:26:53,519 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:26:53,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:26:53,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:26:53,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:26:53,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:26:53,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:26:53,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:26:53,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:26:53,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:26:53,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:26:53,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:26:53,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:26:53,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:26:53,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:26:53,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e [2019-12-07 10:26:53,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:26:53,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:26:53,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:26:53,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:26:53,640 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:26:53,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2019-12-07 10:26:53,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/eb87e1e56/698c0794c0f341d4950ff38b2f487063/FLAG7bec776e5 [2019-12-07 10:26:54,071 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:26:54,072 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/sv-benchmarks/c/float-benchs/nan_double_range.c [2019-12-07 10:26:54,076 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/eb87e1e56/698c0794c0f341d4950ff38b2f487063/FLAG7bec776e5 [2019-12-07 10:26:54,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/eb87e1e56/698c0794c0f341d4950ff38b2f487063 [2019-12-07 10:26:54,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:26:54,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:26:54,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:26:54,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:26:54,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:26:54,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d3b949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54, skipping insertion in model container [2019-12-07 10:26:54,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:26:54,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:26:54,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:26:54,601 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:26:54,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:26:54,649 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:26:54,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54 WrapperNode [2019-12-07 10:26:54,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:26:54,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:26:54,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:26:54,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:26:54,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:26:54,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:26:54,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:26:54,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:26:54,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... [2019-12-07 10:26:54,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:26:54,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:26:54,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:26:54,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:26:54,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:26:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:26:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:26:54,804 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:26:54,805 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:26:54,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:26:54 BoogieIcfgContainer [2019-12-07 10:26:54,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:26:54,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:26:54,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:26:54,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:26:54,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:26:54" (1/3) ... [2019-12-07 10:26:54,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e3453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:26:54, skipping insertion in model container [2019-12-07 10:26:54,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:54" (2/3) ... [2019-12-07 10:26:54,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e3453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:26:54, skipping insertion in model container [2019-12-07 10:26:54,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:26:54" (3/3) ... [2019-12-07 10:26:54,810 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2019-12-07 10:26:54,816 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:26:54,820 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:26:54,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:26:54,841 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:26:54,841 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:26:54,841 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:26:54,841 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:26:54,841 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:26:54,841 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:26:54,841 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:26:54,841 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:26:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 10:26:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:26:54,853 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:26:54,854 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:26:54,854 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:26:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:26:54,858 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-12-07 10:26:54,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:26:54,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907934572] [2019-12-07 10:26:54,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:26:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:26:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:26:54,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:26:54,935 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:26:54,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:26:54 BoogieIcfgContainer [2019-12-07 10:26:54,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:26:54,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:26:54,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:26:54,946 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:26:54,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:26:54" (3/4) ... [2019-12-07 10:26:54,949 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:26:54,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:26:54,950 INFO L168 Benchmark]: Toolchain (without parser) took 472.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:26:54,951 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:26:54,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:54,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:26:54,952 INFO L168 Benchmark]: Boogie Preprocessor took 10.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:26:54,953 INFO L168 Benchmark]: RCFGBuilder took 124.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:54,953 INFO L168 Benchmark]: TraceAbstraction took 139.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:54,953 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:26:54,956 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 124.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] COND TRUE x >= -1e307 && x <= 1e307 [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, 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=9occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 10:26:56,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:26:56,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:26:56,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:26:56,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:26:56,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:26:56,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:26:56,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:26:56,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:26:56,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:26:56,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:26:56,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:26:56,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:26:56,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:26:56,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:26:56,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:26:56,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:26:56,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:26:56,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:26:56,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:26:56,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:26:56,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:26:56,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:26:56,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:26:56,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:26:56,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:26:56,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:26:56,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:26:56,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:26:56,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:26:56,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:26:56,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:26:56,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:26:56,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:26:56,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:26:56,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:26:56,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:26:56,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:26:56,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:26:56,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:26:56,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:26:56,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 10:26:56,325 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:26:56,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:26:56,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:26:56,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:26:56,326 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:26:56,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:26:56,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:26:56,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:26:56,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:26:56,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:26:56,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:26:56,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:26:56,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:26:56,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:26:56,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:26:56,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:26:56,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:26:56,329 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e [2019-12-07 10:26:56,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:26:56,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:26:56,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:26:56,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:26:56,516 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:26:56,517 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2019-12-07 10:26:56,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/9677581b9/2560c341b5ad42d3bb3dfaf33cacf703/FLAGbd270d877 [2019-12-07 10:26:56,987 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:26:56,987 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/sv-benchmarks/c/float-benchs/nan_double_range.c [2019-12-07 10:26:56,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/9677581b9/2560c341b5ad42d3bb3dfaf33cacf703/FLAGbd270d877 [2019-12-07 10:26:57,000 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/data/9677581b9/2560c341b5ad42d3bb3dfaf33cacf703 [2019-12-07 10:26:57,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:26:57,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:26:57,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:26:57,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:26:57,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:26:57,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2818af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57, skipping insertion in model container [2019-12-07 10:26:57,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:26:57,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:26:57,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:26:57,122 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:26:57,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:26:57,141 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:26:57,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57 WrapperNode [2019-12-07 10:26:57,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:26:57,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:26:57,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:26:57,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:26:57,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:26:57,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:26:57,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:26:57,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:26:57,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... [2019-12-07 10:26:57,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:26:57,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:26:57,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:26:57,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:26:57,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:26:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:26:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:26:57,343 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:26:57,344 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:26:57,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:26:57 BoogieIcfgContainer [2019-12-07 10:26:57,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:26:57,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:26:57,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:26:57,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:26:57,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:26:57" (1/3) ... [2019-12-07 10:26:57,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19779705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:26:57, skipping insertion in model container [2019-12-07 10:26:57,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:26:57" (2/3) ... [2019-12-07 10:26:57,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19779705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:26:57, skipping insertion in model container [2019-12-07 10:26:57,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:26:57" (3/3) ... [2019-12-07 10:26:57,349 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2019-12-07 10:26:57,355 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:26:57,359 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:26:57,366 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:26:57,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:26:57,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:26:57,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:26:57,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:26:57,381 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:26:57,381 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:26:57,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:26:57,382 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:26:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 10:26:57,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:26:57,393 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:26:57,394 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:26:57,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:26:57,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:26:57,398 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2019-12-07 10:26:57,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 10:26:57,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655903592] [2019-12-07 10:26:57,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 10:26:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:26:57,445 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:26:57,448 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:26:57,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:26:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:26:57,497 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:26:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:26:57,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655903592] [2019-12-07 10:26:57,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:26:57,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:26:57,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8968992] [2019-12-07 10:26:57,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:26:57,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 10:26:57,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:26:57,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:26:57,534 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-12-07 10:26:57,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:26:57,549 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-12-07 10:26:57,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:26:57,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 10:26:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:26:57,557 INFO L225 Difference]: With dead ends: 18 [2019-12-07 10:26:57,558 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:26:57,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:26:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:26:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:26:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:26:57,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:26:57,582 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 10:26:57,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:26:57,582 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:26:57,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:26:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:26:57,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:26:57,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:26:57,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 10:26:57,844 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L249 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: true [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point L13(lines 13 15) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L249 CegarLoopResult]: At program point L13-1(lines 13 15) the Hoare annotation is: true [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2019-12-07 10:26:57,845 INFO L246 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-12-07 10:26:57,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:26:57 BoogieIcfgContainer [2019-12-07 10:26:57,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:26:57,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:26:57,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:26:57,851 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:26:57,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:26:57" (3/4) ... [2019-12-07 10:26:57,854 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:26:57,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 10:26:57,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 10:26:57,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:26:57,886 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c7c4739f-54cc-4ab5-a845-a998bca5d4ff/bin/uautomizer/witness.graphml [2019-12-07 10:26:57,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:26:57,887 INFO L168 Benchmark]: Toolchain (without parser) took 883.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -106.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,887 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:26:57,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 941.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,889 INFO L168 Benchmark]: Boogie Preprocessor took 14.20 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,889 INFO L168 Benchmark]: RCFGBuilder took 135.32 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: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,889 INFO L168 Benchmark]: TraceAbstraction took 505.47 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,890 INFO L168 Benchmark]: Witness Printer took 34.96 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:26:57,892 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 941.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.20 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.32 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: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 505.47 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 34.96 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10 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...