./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................... 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_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:47:04,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:47:04,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:47:04,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:47:04,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:47:04,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:47:04,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:47:04,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:47:04,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:47:04,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:47:04,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:47:04,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:47:04,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:47:04,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:47:04,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:47:04,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:47:04,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:47:04,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:47:04,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:47:04,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:47:04,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:47:04,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:47:04,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:47:04,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:47:04,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:47:04,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:47:04,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:47:04,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:47:04,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:47:04,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:47:04,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:47:04,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:47:04,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:47:04,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:47:04,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:47:04,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:47:04,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:47:04,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:47:04,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:47:04,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:47:04,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:47:04,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:47:04,873 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:47:04,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:47:04,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:47:04,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:47:04,874 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:47:04,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:47:04,874 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:47:04,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:47:04,876 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:47:04,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:47:04,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:47:04,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:47:04,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:47:04,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:47:04,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:47:04,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:47:04,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:47:04,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:47:04,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:47:04,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:47:04,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:47:04,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:47:04,877 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_86305bfa-9f89-4f72-8817-7da19d6e35f7/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-12-07 12:47:04,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:47:05,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:47:05,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:47:05,004 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:47:05,004 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:47:05,005 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-12-07 12:47:05,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/725519241/e25ed50f4bb647959df6944afe629215/FLAG29288465e [2019-12-07 12:47:05,392 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:47:05,393 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-12-07 12:47:05,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/725519241/e25ed50f4bb647959df6944afe629215/FLAG29288465e [2019-12-07 12:47:05,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/725519241/e25ed50f4bb647959df6944afe629215 [2019-12-07 12:47:05,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:47:05,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:47:05,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:47:05,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:47:05,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:47:05,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545433eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05, skipping insertion in model container [2019-12-07 12:47:05,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:47:05,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:47:05,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:47:05,564 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:47:05,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:47:05,587 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:47:05,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05 WrapperNode [2019-12-07 12:47:05,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:47:05,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:47:05,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:47:05,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:47:05,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:47:05,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:47:05,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:47:05,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:47:05,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... [2019-12-07 12:47:05,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:47:05,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:47:05,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:47:05,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:47:05,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:47:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:47:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:47:05,742 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:47:05,742 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 12:47:05,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:05 BoogieIcfgContainer [2019-12-07 12:47:05,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:47:05,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:47:05,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:47:05,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:47:05,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:47:05" (1/3) ... [2019-12-07 12:47:05,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197a0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:47:05, skipping insertion in model container [2019-12-07 12:47:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:05" (2/3) ... [2019-12-07 12:47:05,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197a0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:47:05, skipping insertion in model container [2019-12-07 12:47:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:05" (3/3) ... [2019-12-07 12:47:05,747 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-12-07 12:47:05,753 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:47:05,757 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:47:05,764 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:47:05,778 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:47:05,778 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:47:05,778 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:47:05,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:47:05,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:47:05,779 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:47:05,779 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:47:05,779 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:47:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 12:47:05,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 12:47:05,791 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:47:05,791 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:47:05,792 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:47:05,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:47:05,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-12-07 12:47:05,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:47:05,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609543744] [2019-12-07 12:47:05,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:47:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:47:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:47:05,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:47:05,868 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:47:05,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:47:05 BoogieIcfgContainer [2019-12-07 12:47:05,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:47:05,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:47:05,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:47:05,883 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:47:05,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:05" (3/4) ... [2019-12-07 12:47:05,885 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:47:05,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:47:05,887 INFO L168 Benchmark]: Toolchain (without parser) took 474.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -116.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:05,887 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:05,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:05,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:05,889 INFO L168 Benchmark]: Boogie Preprocessor took 10.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:05,889 INFO L168 Benchmark]: RCFGBuilder took 124.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:05,889 INFO L168 Benchmark]: TraceAbstraction took 138.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:05,890 INFO L168 Benchmark]: Witness Printer took 2.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:05,892 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 124.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [d=0] [L8] d = 1.0 VAL [d=1] [L20] d += (x == 2) [L22] d += (x > 3) [L24] COND TRUE !(d == 2.0) [L24] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 12:47:07,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:47:07,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:47:07,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:47:07,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:47:07,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:47:07,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:47:07,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:47:07,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:47:07,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:47:07,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:47:07,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:47:07,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:47:07,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:47:07,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:47:07,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:47:07,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:47:07,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:47:07,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:47:07,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:47:07,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:47:07,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:47:07,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:47:07,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:47:07,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:47:07,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:47:07,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:47:07,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:47:07,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:47:07,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:47:07,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:47:07,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:47:07,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:47:07,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:47:07,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:47:07,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:47:07,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:47:07,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:47:07,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:47:07,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:47:07,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:47:07,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:47:07,324 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:47:07,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:47:07,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:47:07,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:47:07,325 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:47:07,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:47:07,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:47:07,326 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:47:07,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:47:07,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:47:07,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:47:07,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:47:07,329 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2019-12-07 12:47:07,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:47:07,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:47:07,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:47:07,499 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:47:07,500 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:47:07,500 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-12-07 12:47:07,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/89f215864/1834431eed654a9ab8a2b7b9c9dc3322/FLAGcd57f8678 [2019-12-07 12:47:07,951 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:47:07,951 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/sv-benchmarks/c/floats-cbmc-regression/float3.c [2019-12-07 12:47:07,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/89f215864/1834431eed654a9ab8a2b7b9c9dc3322/FLAGcd57f8678 [2019-12-07 12:47:08,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/data/89f215864/1834431eed654a9ab8a2b7b9c9dc3322 [2019-12-07 12:47:08,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:47:08,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:47:08,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:47:08,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:47:08,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:47:08,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb84b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08, skipping insertion in model container [2019-12-07 12:47:08,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:47:08,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:47:08,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:47:08,465 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:47:08,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:47:08,484 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:47:08,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08 WrapperNode [2019-12-07 12:47:08,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:47:08,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:47:08,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:47:08,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:47:08,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:47:08,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:47:08,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:47:08,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:47:08,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... [2019-12-07 12:47:08,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:47:08,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:47:08,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:47:08,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:47:08,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:47:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:47:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:47:08,848 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:47:08,848 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 12:47:08,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:08 BoogieIcfgContainer [2019-12-07 12:47:08,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:47:08,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:47:08,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:47:08,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:47:08,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:47:08" (1/3) ... [2019-12-07 12:47:08,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bb1b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:47:08, skipping insertion in model container [2019-12-07 12:47:08,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:47:08" (2/3) ... [2019-12-07 12:47:08,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bb1b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:47:08, skipping insertion in model container [2019-12-07 12:47:08,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:08" (3/3) ... [2019-12-07 12:47:08,854 INFO L109 eAbstractionObserver]: Analyzing ICFG float3.c [2019-12-07 12:47:08,860 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:47:08,864 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:47:08,871 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:47:08,886 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:47:08,886 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:47:08,886 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:47:08,886 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:47:08,886 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:47:08,886 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:47:08,886 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:47:08,886 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:47:08,895 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 12:47:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 12:47:08,898 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:47:08,899 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:47:08,899 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:47:08,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:47:08,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2019-12-07 12:47:08,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:47:08,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706223524] [2019-12-07 12:47:08,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 12:47:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:47:09,086 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:47:09,090 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:47:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:47:09,267 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:47:21,494 WARN L192 SmtUtils]: Spent 9.02 s on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-12-07 12:47:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:47:22,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706223524] [2019-12-07 12:47:22,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:47:22,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 12:47:22,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28376490] [2019-12-07 12:47:22,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 12:47:22,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:47:22,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 12:47:22,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:47:22,048 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 9 states. [2019-12-07 12:47:28,003 WARN L192 SmtUtils]: Spent 3.91 s on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2019-12-07 12:47:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:47:31,278 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-12-07 12:47:31,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:47:31,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2019-12-07 12:47:31,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:47:31,285 INFO L225 Difference]: With dead ends: 20 [2019-12-07 12:47:31,285 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:47:31,288 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:47:31,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:47:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:47:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:47:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:47:31,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 12:47:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:47:31,306 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:47:31,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 12:47:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:47:31,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:47:31,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:47:31,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:47:31,515 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:47:31,516 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:47:31,516 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:47:31,516 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:47:31,516 INFO L246 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2019-12-07 12:47:31,516 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2019-12-07 12:47:31,517 INFO L246 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-12-07 12:47:31,517 INFO L246 CegarLoopResult]: For program point L15(lines 15 16) no Hoare annotation was computed. [2019-12-07 12:47:31,517 INFO L246 CegarLoopResult]: For program point L15-2(lines 15 16) no Hoare annotation was computed. [2019-12-07 12:47:31,518 INFO L246 CegarLoopResult]: For program point L11(lines 11 25) no Hoare annotation was computed. [2019-12-07 12:47:31,518 INFO L246 CegarLoopResult]: For program point L6(lines 6 9) no Hoare annotation was computed. [2019-12-07 12:47:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:47:31 BoogieIcfgContainer [2019-12-07 12:47:31,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:47:31,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:47:31,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:47:31,527 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:47:31,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:47:08" (3/4) ... [2019-12-07 12:47:31,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:47:31,545 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:47:31,546 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:47:31,574 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_86305bfa-9f89-4f72-8817-7da19d6e35f7/bin/uautomizer/witness.graphml [2019-12-07 12:47:31,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:47:31,575 INFO L168 Benchmark]: Toolchain (without parser) took 23247.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -58.4 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:31,575 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:31,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.99 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:31,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:31,576 INFO L168 Benchmark]: Boogie Preprocessor took 14.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:31,577 INFO L168 Benchmark]: RCFGBuilder took 299.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:31,577 INFO L168 Benchmark]: TraceAbstraction took 22676.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:47:31,577 INFO L168 Benchmark]: Witness Printer took 48.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:47:31,579 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.99 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 50.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 299.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22676.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. * Witness Printer took 48.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 22.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 23 SDslu, 13 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 18.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 750 SizeOfPredicates, 3 NumberOfNonLiveVariables, 11 ConjunctsInSsa, 5 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...