./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/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 e20164d66b413fd1e6480d779b873570f1c551b2 ........................................................................................................................................................................................................................... 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_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/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 e20164d66b413fd1e6480d779b873570f1c551b2 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:01:52,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:01:52,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:01:52,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:01:52,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:01:52,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:01:52,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:01:52,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:01:52,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:01:52,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:01:52,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:01:52,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:01:52,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:01:52,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:01:52,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:01:52,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:01:52,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:01:52,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:01:52,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:01:52,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:01:52,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:01:52,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:01:52,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:01:52,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:01:52,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:01:52,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:01:52,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:01:52,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:01:52,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:01:52,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:01:52,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:01:52,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:01:52,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:01:52,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:01:52,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:01:52,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:01:52,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:01:52,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:01:52,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:01:52,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:01:52,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:01:52,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:01:52,814 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:01:52,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:01:52,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:01:52,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:01:52,817 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:01:52,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:01:52,817 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:01:52,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:01:52,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:01:52,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:01:52,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:01:52,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:01:52,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:01:52,819 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:01:52,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:01:52,819 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:01:52,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:01:52,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:01:52,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:01:52,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:01:52,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:01:52,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:01:52,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:01:52,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:01:52,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:01:52,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:01:52,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:01:52,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:01:52,823 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_2fce0fec-5335-4f64-8524-4949dfd16d68/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2019-11-15 20:01:52,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:01:52,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:01:52,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:01:52,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:01:52,875 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:01:52,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-15 20:01:52,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/e4d18dccc/e8370666885047db90d5220966618244/FLAG28adeb8b0 [2019-11-15 20:01:53,299 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:01:53,300 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-15 20:01:53,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/e4d18dccc/e8370666885047db90d5220966618244/FLAG28adeb8b0 [2019-11-15 20:01:53,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/e4d18dccc/e8370666885047db90d5220966618244 [2019-11-15 20:01:53,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:01:53,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:01:53,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:01:53,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:01:53,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:01:53,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24da03c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53, skipping insertion in model container [2019-11-15 20:01:53,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,333 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:01:53,346 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:01:53,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:01:53,472 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:01:53,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:01:53,562 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:01:53,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53 WrapperNode [2019-11-15 20:01:53,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:01:53,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:01:53,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:01:53,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:01:53,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:01:53,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:01:53,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:01:53,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:01:53,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... [2019-11-15 20:01:53,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:01:53,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:01:53,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:01:53,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:01:53,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/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 [2019-11-15 20:01:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:01:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:01:53,842 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:01:53,843 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:01:53,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:01:53 BoogieIcfgContainer [2019-11-15 20:01:53,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:01:53,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:01:53,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:01:53,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:01:53,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:01:53" (1/3) ... [2019-11-15 20:01:53,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1e8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:01:53, skipping insertion in model container [2019-11-15 20:01:53,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:53" (2/3) ... [2019-11-15 20:01:53,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1e8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:01:53, skipping insertion in model container [2019-11-15 20:01:53,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:01:53" (3/3) ... [2019-11-15 20:01:53,850 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2019-11-15 20:01:53,859 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:01:53,866 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:01:53,877 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:01:53,897 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:01:53,897 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:01:53,898 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:01:53,898 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:01:53,898 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:01:53,898 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:01:53,898 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:01:53,899 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:01:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-15 20:01:53,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 20:01:53,916 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:01:53,917 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 20:01:53,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:01:53,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:01:53,924 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-15 20:01:53,932 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:01:53,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831484582] [2019-11-15 20:01:53,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:01:53,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:01:53,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:01:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:01:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:01:54,033 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:01:54,034 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:01:54,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:01:54 BoogieIcfgContainer [2019-11-15 20:01:54,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:01:54,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:01:54,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:01:54,050 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:01:54,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:01:53" (3/4) ... [2019-11-15 20:01:54,054 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:01:54,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:01:54,056 INFO L168 Benchmark]: Toolchain (without parser) took 737.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:54,057 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:54,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:54,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:54,059 INFO L168 Benchmark]: Boogie Preprocessor took 18.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:54,060 INFO L168 Benchmark]: RCFGBuilder took 229.83 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:54,060 INFO L168 Benchmark]: TraceAbstraction took 204.36 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:54,061 INFO L168 Benchmark]: Witness Printer took 4.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:54,064 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.83 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 204.36 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 14, overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 20:01:56,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:01:56,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:01:56,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:01:56,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:01:56,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:01:56,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:01:56,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:01:56,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:01:56,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:01:56,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:01:56,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:01:56,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:01:56,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:01:56,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:01:56,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:01:56,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:01:56,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:01:56,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:01:56,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:01:56,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:01:56,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:01:56,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:01:56,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:01:56,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:01:56,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:01:56,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:01:56,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:01:56,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:01:56,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:01:56,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:01:56,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:01:56,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:01:56,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:01:56,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:01:56,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:01:56,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:01:56,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:01:56,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:01:56,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:01:56,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:01:56,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:01:56,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:01:56,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:01:56,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:01:56,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:01:56,200 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:01:56,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:01:56,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:01:56,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:01:56,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:01:56,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:01:56,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:01:56,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:01:56,202 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:01:56,202 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:01:56,203 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:01:56,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:01:56,203 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:01:56,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:01:56,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:01:56,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:01:56,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:01:56,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:01:56,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:01:56,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:01:56,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:01:56,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:01:56,206 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:01:56,206 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:01:56,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:01:56,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:01:56,207 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_2fce0fec-5335-4f64-8524-4949dfd16d68/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2019-11-15 20:01:56,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:01:56,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:01:56,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:01:56,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:01:56,257 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:01:56,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-15 20:01:56,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/4b40462cd/760829adff5d4e35815c21a01120e02e/FLAG784f044a7 [2019-11-15 20:01:56,658 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:01:56,659 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-15 20:01:56,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/4b40462cd/760829adff5d4e35815c21a01120e02e/FLAG784f044a7 [2019-11-15 20:01:57,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/data/4b40462cd/760829adff5d4e35815c21a01120e02e [2019-11-15 20:01:57,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:01:57,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:01:57,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:01:57,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:01:57,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:01:57,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48fe28b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57, skipping insertion in model container [2019-11-15 20:01:57,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,052 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:01:57,068 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:01:57,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:01:57,242 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:01:57,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:01:57,272 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:01:57,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57 WrapperNode [2019-11-15 20:01:57,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:01:57,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:01:57,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:01:57,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:01:57,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:01:57,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:01:57,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:01:57,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:01:57,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... [2019-11-15 20:01:57,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:01:57,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:01:57,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:01:57,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:01:57,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/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 [2019-11-15 20:01:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:01:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:01:57,616 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:01:57,616 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:01:57,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:01:57 BoogieIcfgContainer [2019-11-15 20:01:57,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:01:57,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:01:57,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:01:57,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:01:57,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:01:57" (1/3) ... [2019-11-15 20:01:57,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afcf467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:01:57, skipping insertion in model container [2019-11-15 20:01:57,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:01:57" (2/3) ... [2019-11-15 20:01:57,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afcf467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:01:57, skipping insertion in model container [2019-11-15 20:01:57,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:01:57" (3/3) ... [2019-11-15 20:01:57,622 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2019-11-15 20:01:57,636 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:01:57,646 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:01:57,656 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:01:57,679 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:01:57,679 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:01:57,679 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:01:57,679 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:01:57,680 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:01:57,680 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:01:57,680 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:01:57,680 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:01:57,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-15 20:01:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 20:01:57,695 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:01:57,695 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 20:01:57,697 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:01:57,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:01:57,700 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-15 20:01:57,707 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:01:57,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356941552] [2019-11-15 20:01:57,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/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 [2019-11-15 20:01:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:01:57,966 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 20:01:57,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:01:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:01:58,036 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:01:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:01:58,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356941552] [2019-11-15 20:01:58,053 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:01:58,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-15 20:01:58,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689987857] [2019-11-15 20:01:58,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:01:58,056 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:01:58,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:01:58,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:01:58,069 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-11-15 20:01:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:01:58,089 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-15 20:01:58,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:01:58,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-15 20:01:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:01:58,095 INFO L225 Difference]: With dead ends: 12 [2019-11-15 20:01:58,096 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:01:58,098 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:01:58,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:01:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:01:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:01:58,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:01:58,117 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-15 20:01:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:01:58,118 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:01:58,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:01:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:01:58,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:01:58,319 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:01:58,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:01:58,358 INFO L439 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-15 20:01:58,358 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:01:58,358 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:01:58,358 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:01:58,358 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-15 20:01:58,358 INFO L439 ceAbstractionStarter]: At program point L15(lines 6 16) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-15 20:01:58,359 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-15 20:01:58,359 INFO L443 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-11-15 20:01:58,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:01:58 BoogieIcfgContainer [2019-11-15 20:01:58,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:01:58,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:01:58,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:01:58,369 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:01:58,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:01:57" (3/4) ... [2019-11-15 20:01:58,371 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:01:58,379 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 20:01:58,379 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 20:01:58,413 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2fce0fec-5335-4f64-8524-4949dfd16d68/bin/uautomizer/witness.graphml [2019-11-15 20:01:58,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:01:58,416 INFO L168 Benchmark]: Toolchain (without parser) took 1381.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:58,417 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:58,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.88 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:58,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:58,419 INFO L168 Benchmark]: Boogie Preprocessor took 21.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:58,419 INFO L168 Benchmark]: RCFGBuilder took 202.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:58,420 INFO L168 Benchmark]: TraceAbstraction took 750.46 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:01:58,421 INFO L168 Benchmark]: Witness Printer took 45.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:01:58,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.88 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 202.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 750.46 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 7 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...