./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.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_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ........................................................................................................................................................................................................................... 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_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ........................................................................................................................................................................................................................................................................................................................................ 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 20:58:28,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:58:28,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:58:28,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:58:28,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:58:28,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:58:28,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:58:28,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:58:28,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:58:28,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:58:28,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:58:28,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:58:28,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:58:28,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:58:28,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:58:28,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:58:28,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:58:28,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:58:28,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:58:28,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:58:28,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:58:28,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:58:28,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:58:28,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:58:28,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:58:28,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:58:28,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:58:28,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:58:28,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:58:28,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:58:28,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:58:28,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:58:28,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:58:28,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:58:28,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:58:28,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:58:28,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:58:28,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:58:28,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:58:28,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:58:28,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:58:28,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:58:28,146 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:58:28,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:58:28,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:58:28,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:58:28,147 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:58:28,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:58:28,148 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:58:28,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:58:28,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:58:28,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:58:28,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:58:28,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:58:28,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:58:28,149 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:58:28,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:58:28,150 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:58:28,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:58:28,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:58:28,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:58:28,150 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:58:28,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:58:28,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:58:28,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:58:28,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:58:28,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:58:28,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:58:28,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:58:28,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:58:28,152 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_39acbc3e-89a7-4f70-946e-10621ba4975f/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-11-15 20:58:28,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:58:28,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:58:28,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:58:28,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:58:28,203 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:58:28,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-15 20:58:28,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/9666c0b9b/8e6e380962674543ae7d445295191332/FLAG95ba10020 [2019-11-15 20:58:28,612 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:58:28,613 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-15 20:58:28,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/9666c0b9b/8e6e380962674543ae7d445295191332/FLAG95ba10020 [2019-11-15 20:58:29,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/9666c0b9b/8e6e380962674543ae7d445295191332 [2019-11-15 20:58:29,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:58:29,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:58:29,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:29,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:58:29,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:58:29,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb7bd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29, skipping insertion in model container [2019-11-15 20:58:29,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,089 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:58:29,108 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:58:29,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:29,359 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:58:29,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:29,384 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:58:29,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29 WrapperNode [2019-11-15 20:58:29,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:29,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:29,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:58:29,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:58:29,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:29,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:58:29,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:58:29,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:58:29,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... [2019-11-15 20:58:29,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:58:29,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:58:29,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:58:29,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:58:29,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/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 20:58:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:58:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:58:29,603 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:58:29,604 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:58:29,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:29 BoogieIcfgContainer [2019-11-15 20:58:29,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:58:29,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:58:29,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:58:29,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:58:29,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:58:29" (1/3) ... [2019-11-15 20:58:29,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d81162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:29, skipping insertion in model container [2019-11-15 20:58:29,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:29" (2/3) ... [2019-11-15 20:58:29,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d81162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:29, skipping insertion in model container [2019-11-15 20:58:29,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:29" (3/3) ... [2019-11-15 20:58:29,616 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-11-15 20:58:29,627 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:58:29,636 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:58:29,652 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:58:29,673 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:58:29,673 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:58:29,673 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:58:29,674 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:58:29,674 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:58:29,674 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:58:29,674 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:58:29,674 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:58:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-15 20:58:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 20:58:29,690 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:29,690 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 20:58:29,691 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:29,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:29,696 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2019-11-15 20:58:29,701 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:58:29,701 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468786752] [2019-11-15 20:58:29,702 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:58:29,702 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:58:29,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:58:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:58:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:58:29,789 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:58:29,789 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:58:29,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:58:29 BoogieIcfgContainer [2019-11-15 20:58:29,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:58:29,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:58:29,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:58:29,804 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:58:29,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:29" (3/4) ... [2019-11-15 20:58:29,807 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:58:29,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:58:29,809 INFO L168 Benchmark]: Toolchain (without parser) took 753.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -209.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:58:29,809 INFO L168 Benchmark]: CDTParser took 0.17 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 20:58:29,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -236.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:29,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:58:29,811 INFO L168 Benchmark]: Boogie Preprocessor took 17.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:58:29,812 INFO L168 Benchmark]: RCFGBuilder took 169.91 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:29,812 INFO L168 Benchmark]: TraceAbstraction took 197.22 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:29,813 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:58:29,816 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -236.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 169.91 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 197.22 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x [L19] COND TRUE y >= 0 [L19] y = x / 10. [L9] COND TRUE !(cond) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 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=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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 20:58:31,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:58:31,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:58:31,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:58:31,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:58:31,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:58:31,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:58:31,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:58:31,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:58:31,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:58:31,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:58:31,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:58:31,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:58:31,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:58:31,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:58:31,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:58:31,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:58:31,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:58:31,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:58:31,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:58:31,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:58:31,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:58:31,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:58:31,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:58:31,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:58:31,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:58:31,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:58:31,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:58:31,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:58:31,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:58:31,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:58:31,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:58:31,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:58:31,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:58:31,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:58:31,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:58:31,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:58:31,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:58:31,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:58:31,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:58:31,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:58:31,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:58:32,003 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:58:32,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:58:32,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:58:32,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:58:32,005 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:58:32,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:58:32,005 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:58:32,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:58:32,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:58:32,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:58:32,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:58:32,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:58:32,007 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:58:32,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:58:32,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:58:32,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:58:32,008 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:58:32,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:58:32,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:58:32,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:58:32,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:58:32,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:58:32,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:58:32,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:58:32,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:58:32,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:58:32,010 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:58:32,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:58:32,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:58:32,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:58:32,011 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_39acbc3e-89a7-4f70-946e-10621ba4975f/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-11-15 20:58:32,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:58:32,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:58:32,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:58:32,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:58:32,076 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:58:32,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-15 20:58:32,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/78b3f8ff6/7c0e82ac0e0b42428a1294fbd23092a6/FLAG3141616d4 [2019-11-15 20:58:32,482 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:58:32,482 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-15 20:58:32,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/78b3f8ff6/7c0e82ac0e0b42428a1294fbd23092a6/FLAG3141616d4 [2019-11-15 20:58:32,923 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/data/78b3f8ff6/7c0e82ac0e0b42428a1294fbd23092a6 [2019-11-15 20:58:32,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:58:32,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:58:32,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:32,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:58:32,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:58:32,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:32" (1/1) ... [2019-11-15 20:58:32,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43504fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:32, skipping insertion in model container [2019-11-15 20:58:32,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:58:32" (1/1) ... [2019-11-15 20:58:32,940 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:58:32,954 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:58:33,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:33,094 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:58:33,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:33,118 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:58:33,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33 WrapperNode [2019-11-15 20:58:33,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:33,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:33,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:58:33,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:58:33,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:58:33,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:58:33,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:58:33,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:58:33,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... [2019-11-15 20:58:33,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:58:33,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:58:33,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:58:33,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:58:33,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/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 20:58:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:58:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:58:37,208 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:58:37,209 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 20:58:37,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:37 BoogieIcfgContainer [2019-11-15 20:58:37,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:58:37,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:58:37,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:58:37,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:58:37,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:58:32" (1/3) ... [2019-11-15 20:58:37,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a20d10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:37, skipping insertion in model container [2019-11-15 20:58:37,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:33" (2/3) ... [2019-11-15 20:58:37,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a20d10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:37, skipping insertion in model container [2019-11-15 20:58:37,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:37" (3/3) ... [2019-11-15 20:58:37,217 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-11-15 20:58:37,225 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:58:37,232 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:58:37,242 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:58:37,263 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:58:37,263 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:58:37,263 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:58:37,263 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:58:37,264 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:58:37,264 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:58:37,264 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:58:37,264 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:58:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-15 20:58:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 20:58:37,282 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:37,283 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 20:58:37,284 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:58:37,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:37,289 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2019-11-15 20:58:37,299 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:37,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20128210] [2019-11-15 20:58:37,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/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 20:58:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:58:37,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 20:58:37,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:58:40,914 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0)))) is different from true [2019-11-15 20:58:40,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:58:45,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:58:57,323 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53))))) .cse1) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse1 (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 .cse2) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))))) is different from false [2019-11-15 20:59:08,660 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from false [2019-11-15 20:59:10,869 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from true [2019-11-15 20:59:10,872 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 20:59:10,873 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:59:13,171 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from false [2019-11-15 20:59:14,975 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 20:59:14,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20128210] [2019-11-15 20:59:14,977 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:59:14,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-15 20:59:14,977 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23449115] [2019-11-15 20:59:14,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 20:59:14,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:59:14,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 20:59:14,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=16, Unknown=5, NotChecked=36, Total=72 [2019-11-15 20:59:14,993 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 9 states. [2019-11-15 20:59:20,051 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse1 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse0))) (and (fp.leq c_ULTIMATE.start_main_~x~0 .cse0) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse1 (_ +zero 11 53))))) is different from true [2019-11-15 20:59:22,277 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0))))) is different from false [2019-11-15 20:59:27,572 WARN L191 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 29 DAG size of output: 5 [2019-11-15 20:59:27,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:59:27,604 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-11-15 20:59:27,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:59:27,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-11-15 20:59:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:59:27,617 INFO L225 Difference]: With dead ends: 18 [2019-11-15 20:59:27,617 INFO L226 Difference]: Without dead ends: 6 [2019-11-15 20:59:27,620 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=22, Invalid=25, Unknown=7, NotChecked=78, Total=132 [2019-11-15 20:59:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-11-15 20:59:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-11-15 20:59:27,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-15 20:59:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-11-15 20:59:27,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2019-11-15 20:59:27,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:59:27,645 INFO L462 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-11-15 20:59:27,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 20:59:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-11-15 20:59:27,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 20:59:27,646 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:59:27,646 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 20:59:27,847 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:59:27,848 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:59:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:59:27,848 INFO L82 PathProgramCache]: Analyzing trace with hash 29739460, now seen corresponding path program 1 times [2019-11-15 20:59:27,849 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:59:27,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886925513] [2019-11-15 20:59:27,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 20:59:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:59:28,425 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 20:59:28,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:59:30,474 WARN L838 $PredicateComparison]: unable to prove that (and (= (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) is different from false [2019-11-15 20:59:36,531 WARN L191 SmtUtils]: Spent 4.10 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-15 20:59:36,533 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:38,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:59:52,740 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1))) is different from false [2019-11-15 21:00:03,073 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from false [2019-11-15 21:00:05,122 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from true [2019-11-15 21:00:05,123 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 21:00:05,123 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:00:38,498 WARN L191 SmtUtils]: Spent 17.25 s on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2019-11-15 21:00:38,499 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 21:00:38,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886925513] [2019-11-15 21:00:38,499 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:00:38,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-15 21:00:38,500 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262736606] [2019-11-15 21:00:38,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 21:00:38,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:00:38,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 21:00:38,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=18, Unknown=8, NotChecked=30, Total=72 [2019-11-15 21:00:38,502 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 9 states. [2019-11-15 21:00:43,844 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (or (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (= (fp.sub roundNearestTiesToEven .cse0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)))) is different from false [2019-11-15 21:00:46,510 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53))) is different from false [2019-11-15 21:00:48,576 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (not .cse0) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0)))) is different from false [2019-11-15 21:00:48,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:00:48,581 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-11-15 21:00:48,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:00:48,581 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-11-15 21:00:48,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:00:48,582 INFO L225 Difference]: With dead ends: 6 [2019-11-15 21:00:48,582 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:00:48,583 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.6s TimeCoverageRelationStatistics Valid=22, Invalid=21, Unknown=11, NotChecked=78, Total=132 [2019-11-15 21:00:48,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:00:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:00:48,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:00:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:00:48,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-15 21:00:48,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:00:48,585 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:00:48,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 21:00:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:00:48,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:00:48,786 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 21:00:48,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L439 ceAbstractionStarter]: At program point L23(lines 11 24) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-15 21:00:48,822 INFO L443 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-11-15 21:00:48,823 INFO L439 ceAbstractionStarter]: At program point L9-3(line 9) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-15 21:00:48,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:00:48 BoogieIcfgContainer [2019-11-15 21:00:48,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:00:48,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:00:48,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:00:48,834 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:00:48,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:37" (3/4) ... [2019-11-15 21:00:48,837 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:00:48,846 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 21:00:48,847 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:00:48,886 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39acbc3e-89a7-4f70-946e-10621ba4975f/bin/uautomizer/witness.graphml [2019-11-15 21:00:48,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:00:48,888 INFO L168 Benchmark]: Toolchain (without parser) took 135960.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:48,888 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:00:48,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.19 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 21:00:48,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -262.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:48,891 INFO L168 Benchmark]: Boogie Preprocessor took 22.29 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: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:48,891 INFO L168 Benchmark]: RCFGBuilder took 3982.61 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: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:48,892 INFO L168 Benchmark]: TraceAbstraction took 131623.05 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: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:48,892 INFO L168 Benchmark]: Witness Printer took 52.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:00:48,896 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.19 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 85.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.0 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -262.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.29 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: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3982.61 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: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131623.05 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: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 9]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 131.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 4 SDslu, 21 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 107.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 6 QuantifiedInterpolants, 1764 SizeOfPredicates, 8 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...