./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 .................................................................................................................................................................................................................................. 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_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:56:21,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:56:21,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:56:21,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:56:21,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:56:21,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:56:21,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:56:21,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:56:21,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:56:21,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:56:21,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:56:21,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:56:21,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:56:21,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:56:21,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:56:21,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:56:21,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:56:21,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:56:21,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:56:21,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:56:21,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:56:21,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:56:21,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:56:21,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:56:21,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:56:21,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:56:21,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:56:21,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:56:21,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:56:21,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:56:21,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:56:21,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:56:21,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:56:21,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:56:21,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:56:21,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:56:21,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:56:21,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:56:21,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:56:21,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:56:21,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:56:21,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:56:21,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:56:21,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:56:21,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:56:21,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:56:21,733 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:56:21,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:56:21,734 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:56:21,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:56:21,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:56:21,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:56:21,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:56:21,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:56:21,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:56:21,737 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:56:21,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:56:21,738 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:56:21,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:56:21,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:56:21,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:56:21,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:56:21,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:56:21,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:56:21,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:56:21,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:56:21,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:56:21,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:56:21,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:56:21,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:56:21,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:56:21,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-12-01 15:56:22,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:56:22,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:56:22,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:56:22,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:56:22,195 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:56:22,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/../../sv-benchmarks/c/float-benchs/float_double.c [2020-12-01 15:56:22,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/ee0f823d2/20a4965a53ea42d7ad337881762e66fa/FLAG3144732d8 [2020-12-01 15:56:23,027 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:56:23,029 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/sv-benchmarks/c/float-benchs/float_double.c [2020-12-01 15:56:23,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/ee0f823d2/20a4965a53ea42d7ad337881762e66fa/FLAG3144732d8 [2020-12-01 15:56:23,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/ee0f823d2/20a4965a53ea42d7ad337881762e66fa [2020-12-01 15:56:23,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:56:23,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:56:23,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:56:23,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:56:23,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:56:23,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cca5672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23, skipping insertion in model container [2020-12-01 15:56:23,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:56:23,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:56:23,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:56:23,664 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:56:23,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:56:23,702 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:56:23,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23 WrapperNode [2020-12-01 15:56:23,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:56:23,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:56:23,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:56:23,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:56:23,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:56:23,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:56:23,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:56:23,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:56:23,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... [2020-12-01 15:56:23,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:56:23,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:56:23,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:56:23,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:56:23,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/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 [2020-12-01 15:56:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:56:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:56:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:56:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:56:24,171 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:56:24,171 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 15:56:24,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:56:24 BoogieIcfgContainer [2020-12-01 15:56:24,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:56:24,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:56:24,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:56:24,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:56:24,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:56:23" (1/3) ... [2020-12-01 15:56:24,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283096af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:56:24, skipping insertion in model container [2020-12-01 15:56:24,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:23" (2/3) ... [2020-12-01 15:56:24,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283096af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:56:24, skipping insertion in model container [2020-12-01 15:56:24,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:56:24" (3/3) ... [2020-12-01 15:56:24,208 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-12-01 15:56:24,226 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:56:24,230 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:56:24,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:56:24,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:56:24,278 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:56:24,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:56:24,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:56:24,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:56:24,279 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:56:24,280 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:56:24,280 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:56:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-01 15:56:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:56:24,303 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:24,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:56:24,305 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:24,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:24,312 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-12-01 15:56:24,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:24,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714755591] [2020-12-01 15:56:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:24,482 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:24,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:24,572 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:24,573 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:56:24,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:56:24,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:56:24 BoogieIcfgContainer [2020-12-01 15:56:24,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:56:24,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:56:24,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:56:24,603 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:56:24,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:56:24" (3/4) ... [2020-12-01 15:56:24,615 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:56:24,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:56:24,621 INFO L168 Benchmark]: Toolchain (without parser) took 1231.13 ms. Allocated memory is still 100.7 MB. Free memory was 70.6 MB in the beginning and 53.3 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:24,624 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 73.4 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 33.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:56:24,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.77 ms. Allocated memory is still 100.7 MB. Free memory was 70.3 MB in the beginning and 78.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:24,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.01 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:56:24,630 INFO L168 Benchmark]: Boogie Preprocessor took 24.39 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 75.9 MB in the end (delta: 911.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:24,632 INFO L168 Benchmark]: RCFGBuilder took 402.35 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 65.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:24,633 INFO L168 Benchmark]: TraceAbstraction took 425.93 ms. Allocated memory is still 100.7 MB. Free memory was 65.5 MB in the beginning and 53.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:24,636 INFO L168 Benchmark]: Witness Printer took 12.32 ms. Allocated memory is still 100.7 MB. Free memory was 53.8 MB in the beginning and 53.3 MB in the end (delta: 489.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:24,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 73.4 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 33.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.77 ms. Allocated memory is still 100.7 MB. Free memory was 70.3 MB in the beginning and 78.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.01 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.39 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 75.9 MB in the end (delta: 911.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 402.35 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 65.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 425.93 ms. Allocated memory is still 100.7 MB. Free memory was 65.5 MB in the beginning and 53.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 12.32 ms. Allocated memory is still 100.7 MB. Free memory was 53.8 MB in the beginning and 53.3 MB in the end (delta: 489.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; [L6] COND TRUE !(cond) [L3] __assert_fail("0", "float_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=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: 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, 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 0.2.0-69874e2 [2020-12-01 15:56:27,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:56:27,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:56:27,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:56:27,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:56:27,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:56:28,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:56:28,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:56:28,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:56:28,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:56:28,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:56:28,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:56:28,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:56:28,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:56:28,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:56:28,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:56:28,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:56:28,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:56:28,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:56:28,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:56:28,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:56:28,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:56:28,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:56:28,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:56:28,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:56:28,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:56:28,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:56:28,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:56:28,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:56:28,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:56:28,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:56:28,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:56:28,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:56:28,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:56:28,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:56:28,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:56:28,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:56:28,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:56:28,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:56:28,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:56:28,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:56:28,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:56:28,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:56:28,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:56:28,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:56:28,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:56:28,193 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:56:28,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:56:28,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:56:28,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:56:28,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:56:28,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:56:28,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:56:28,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:56:28,197 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:56:28,197 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:56:28,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:56:28,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:56:28,198 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:56:28,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:56:28,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:56:28,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:56:28,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:56:28,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:56:28,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:56:28,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:56:28,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:56:28,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:56:28,202 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:56:28,202 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:56:28,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:56:28,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:56:28,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:56:28,203 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_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-12-01 15:56:28,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:56:28,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:56:28,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:56:28,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:56:28,814 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:56:28,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/../../sv-benchmarks/c/float-benchs/float_double.c [2020-12-01 15:56:28,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/e9f77c53e/120c5ff4872b46598ce32685b0c2b4ed/FLAGfe4525d03 [2020-12-01 15:56:29,603 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:56:29,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/sv-benchmarks/c/float-benchs/float_double.c [2020-12-01 15:56:29,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/e9f77c53e/120c5ff4872b46598ce32685b0c2b4ed/FLAGfe4525d03 [2020-12-01 15:56:29,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/data/e9f77c53e/120c5ff4872b46598ce32685b0c2b4ed [2020-12-01 15:56:29,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:56:29,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:56:29,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:56:29,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:56:29,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:56:29,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:56:29" (1/1) ... [2020-12-01 15:56:29,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222b86ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:29, skipping insertion in model container [2020-12-01 15:56:29,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:56:29" (1/1) ... [2020-12-01 15:56:30,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:56:30,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:56:30,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:56:30,258 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:56:30,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:56:30,301 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:56:30,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30 WrapperNode [2020-12-01 15:56:30,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:56:30,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:56:30,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:56:30,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:56:30,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:56:30,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:56:30,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:56:30,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:56:30,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... [2020-12-01 15:56:30,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:56:30,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:56:30,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:56:30,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:56:30,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/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 [2020-12-01 15:56:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:56:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:56:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:56:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:56:31,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:56:31,143 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 15:56:31,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:56:31 BoogieIcfgContainer [2020-12-01 15:56:31,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:56:31,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:56:31,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:56:31,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:56:31,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:56:29" (1/3) ... [2020-12-01 15:56:31,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734bdc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:56:31, skipping insertion in model container [2020-12-01 15:56:31,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:56:30" (2/3) ... [2020-12-01 15:56:31,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734bdc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:56:31, skipping insertion in model container [2020-12-01 15:56:31,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:56:31" (3/3) ... [2020-12-01 15:56:31,159 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-12-01 15:56:31,177 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:56:31,182 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:56:31,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:56:31,254 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:56:31,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:56:31,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:56:31,256 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:56:31,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:56:31,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:56:31,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:56:31,257 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:56:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-01 15:56:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:56:31,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:31,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:56:31,281 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:31,291 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-12-01 15:56:31,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:56:31,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225184656] [2020-12-01 15:56:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/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 [2020-12-01 15:56:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:31,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:56:31,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:56:31,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:56:31,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:56:31,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225184656] [2020-12-01 15:56:31,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:56:31,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-01 15:56:31,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077873843] [2020-12-01 15:56:31,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:56:31,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:56:31,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:56:31,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:56:31,953 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-12-01 15:56:31,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:31,984 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-12-01 15:56:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:31,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-01 15:56:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:31,995 INFO L225 Difference]: With dead ends: 14 [2020-12-01 15:56:31,995 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:56:31,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:56:32,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:56:32,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:56:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:56:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:56:32,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-01 15:56:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:32,030 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:56:32,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:56:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:56:32,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:56:32,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:56:32,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:56:32,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:56:32,306 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:56:32,307 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:56:32,307 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:56:32,307 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:56:32,307 INFO L258 CegarLoopResult]: At program point L13(lines 8 14) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-12-01 15:56:32,308 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-12-01 15:56:32,308 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-12-01 15:56:32,308 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:56:32,308 INFO L258 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-12-01 15:56:32,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:56:32 BoogieIcfgContainer [2020-12-01 15:56:32,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:56:32,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:56:32,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:56:32,336 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:56:32,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:56:31" (3/4) ... [2020-12-01 15:56:32,341 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:56:32,357 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:56:32,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:56:32,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:56:32,359 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:56:32,404 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_808b7208-3bad-45b6-9718-d38e7e7c583a/bin/uautomizer/witness.graphml [2020-12-01 15:56:32,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:56:32,407 INFO L168 Benchmark]: Toolchain (without parser) took 2417.47 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 24.8 MB in the beginning and 42.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,408 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 48.2 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:56:32,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.44 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 24.6 MB in the beginning and 40.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.37 ms. Allocated memory is still 62.9 MB. Free memory was 40.8 MB in the beginning and 39.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,411 INFO L168 Benchmark]: Boogie Preprocessor took 106.14 ms. Allocated memory is still 62.9 MB. Free memory was 39.5 MB in the beginning and 47.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,412 INFO L168 Benchmark]: RCFGBuilder took 686.41 ms. Allocated memory is still 62.9 MB. Free memory was 47.0 MB in the beginning and 36.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,413 INFO L168 Benchmark]: TraceAbstraction took 1185.91 ms. Allocated memory is still 62.9 MB. Free memory was 36.3 MB in the beginning and 44.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,414 INFO L168 Benchmark]: Witness Printer took 69.26 ms. Allocated memory is still 62.9 MB. Free memory was 44.4 MB in the beginning and 42.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:56:32,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 48.2 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.44 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 24.6 MB in the beginning and 40.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.37 ms. Allocated memory is still 62.9 MB. Free memory was 40.8 MB in the beginning and 39.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.14 ms. Allocated memory is still 62.9 MB. Free memory was 39.5 MB in the beginning and 47.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 686.41 ms. Allocated memory is still 62.9 MB. Free memory was 47.0 MB in the beginning and 36.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1185.91 ms. Allocated memory is still 62.9 MB. Free memory was 36.3 MB in the beginning and 44.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Witness Printer took 69.26 ms. Allocated memory is still 62.9 MB. Free memory was 44.4 MB in the beginning and 42.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 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, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 5 NumberOfNonLiveVariables, 28 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...