./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.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/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 5fc76096080d06d307c9a613c10bbb5b03d622cd ............................................................................................................................................................................................................................ 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/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 5fc76096080d06d307c9a613c10bbb5b03d622cd ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:29,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:29,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:29,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:29,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:29,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:29,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:29,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:29,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:29,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:29,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:29,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:29,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:29,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:29,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:29,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:29,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:29,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:29,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:29,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:29,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:29,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:29,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:29,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:29,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:29,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:29,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:29,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:29,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:29,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:29,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:29,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:29,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:29,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:29,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:29,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:29,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:29,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:29,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:29,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:29,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:29,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:29,660 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:29,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:29,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:29,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:29,662 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:29,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:29,662 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:29,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:29,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:29,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:29,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:29,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:29,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:29,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:29,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:29,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:29,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:29,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:29,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:29,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:29,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:29,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:29,666 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/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2019-10-22 08:54:29,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:29,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:29,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:29,713 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:29,714 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:29,714 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-10-22 08:54:29,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/b5b064899/5079818e8d7f4efcae766a44e2811430/FLAGa7f2fc6a7 [2019-10-22 08:54:30,110 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:30,111 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-10-22 08:54:30,116 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/b5b064899/5079818e8d7f4efcae766a44e2811430/FLAGa7f2fc6a7 [2019-10-22 08:54:30,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/b5b064899/5079818e8d7f4efcae766a44e2811430 [2019-10-22 08:54:30,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:30,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:30,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:30,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:30,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:30,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377b5ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30, skipping insertion in model container [2019-10-22 08:54:30,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,143 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:30,156 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:30,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:30,316 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:30,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:30,414 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:30,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30 WrapperNode [2019-10-22 08:54:30,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:30,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:30,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:30,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:30,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:30,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:30,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:30,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:30,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... [2019-10-22 08:54:30,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:30,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:30,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:30,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:30,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 [2019-10-22 08:54:30,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:30,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:30,611 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:30,611 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:54:30,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:30 BoogieIcfgContainer [2019-10-22 08:54:30,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:30,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:30,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:30,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:30,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:30" (1/3) ... [2019-10-22 08:54:30,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f37142a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:30, skipping insertion in model container [2019-10-22 08:54:30,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:30" (2/3) ... [2019-10-22 08:54:30,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f37142a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:30, skipping insertion in model container [2019-10-22 08:54:30,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:30" (3/3) ... [2019-10-22 08:54:30,619 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-10-22 08:54:30,627 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:30,634 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:30,643 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:30,670 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:30,670 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:30,670 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:30,671 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:30,671 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:30,671 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:30,671 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:30,671 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 08:54:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:54:30,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:30,698 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:54:30,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:30,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:30,705 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 08:54:30,713 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:30,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476342669] [2019-10-22 08:54:30,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:30,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:30,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:30,806 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:30,807 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:30,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:30 BoogieIcfgContainer [2019-10-22 08:54:30,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:30,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:30,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:30,822 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:30,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:30" (3/4) ... [2019-10-22 08:54:30,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:30,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:30,828 INFO L168 Benchmark]: Toolchain (without parser) took 698.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:30,829 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:30,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:30,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:30,831 INFO L168 Benchmark]: Boogie Preprocessor took 14.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:30,833 INFO L168 Benchmark]: RCFGBuilder took 154.23 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:30,834 INFO L168 Benchmark]: TraceAbstraction took 208.26 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:30,834 INFO L168 Benchmark]: Witness Printer took 4.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:30,837 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.23 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 208.26 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:32,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:32,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:32,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:32,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:32,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:32,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:32,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:32,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:32,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:32,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:32,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:32,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:32,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:32,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:32,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:32,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:32,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:32,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:32,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:32,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:32,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:32,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:32,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:32,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:32,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:32,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:32,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:32,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:32,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:32,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:32,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:32,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:32,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:32,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:32,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:32,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:32,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:32,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:32,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:32,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:32,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:32,870 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:32,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:32,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:32,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:32,871 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:32,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:32,872 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:32,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:32,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:32,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:32,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:32,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:32,873 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:32,873 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:32,873 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:32,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:32,873 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:32,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:32,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:32,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:32,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:32,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:32,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:32,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:32,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:32,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:32,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:32,875 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:32,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:32,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:32,876 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/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2019-10-22 08:54:32,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:32,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:32,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:32,918 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:32,918 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:32,918 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-10-22 08:54:32,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/27e5b920a/56ad8148edc34766a1b5af82b2ecb9b6/FLAG7674aa456 [2019-10-22 08:54:33,373 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:33,374 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-10-22 08:54:33,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/27e5b920a/56ad8148edc34766a1b5af82b2ecb9b6/FLAG7674aa456 [2019-10-22 08:54:33,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/data/27e5b920a/56ad8148edc34766a1b5af82b2ecb9b6 [2019-10-22 08:54:33,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:33,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:33,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:33,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:33,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:33,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:33,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444bf72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33, skipping insertion in model container [2019-10-22 08:54:33,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:33,794 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:33,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:33,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:33,960 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:33,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:33,987 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:33,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33 WrapperNode [2019-10-22 08:54:33,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:33,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:33,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:33,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:33,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:34,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:34,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:34,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:34,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... [2019-10-22 08:54:34,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:34,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:34,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:34,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:34,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 [2019-10-22 08:54:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:34,260 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:34,260 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:54:34,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:34 BoogieIcfgContainer [2019-10-22 08:54:34,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:34,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:34,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:34,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:34,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:33" (1/3) ... [2019-10-22 08:54:34,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173fe36a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:34, skipping insertion in model container [2019-10-22 08:54:34,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:33" (2/3) ... [2019-10-22 08:54:34,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173fe36a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:34, skipping insertion in model container [2019-10-22 08:54:34,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:34" (3/3) ... [2019-10-22 08:54:34,268 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-10-22 08:54:34,276 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:34,282 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:34,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:34,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:34,312 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:34,312 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:34,312 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:34,312 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:34,313 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:34,313 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:34,313 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 08:54:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 08:54:34,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:34,331 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 08:54:34,333 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:34,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:34,337 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 08:54:34,344 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:34,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708932897] [2019-10-22 08:54:34,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/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 [2019-10-22 08:54:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:34,398 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:54:34,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:34,438 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:54:34,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:34,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708932897] [2019-10-22 08:54:34,446 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:34,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:54:34,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696349390] [2019-10-22 08:54:34,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:34,455 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:54:34,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:34,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:34,473 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-10-22 08:54:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:34,522 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 08:54:34,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:34,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-10-22 08:54:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:34,542 INFO L225 Difference]: With dead ends: 10 [2019-10-22 08:54:34,543 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:34,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:34,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:34,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:34,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:34,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 08:54:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:34,589 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:34,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:34,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:34,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:54:34,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:54:34,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:54:34,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:54:34,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:54:34,796 INFO L443 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-10-22 08:54:34,796 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-10-22 08:54:34,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-22 08:54:34,797 INFO L443 ceAbstractionStarter]: For program point L2(lines 2 11) no Hoare annotation was computed. [2019-10-22 08:54:34,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:34 BoogieIcfgContainer [2019-10-22 08:54:34,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:34,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:34,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:34,800 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:34,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:34" (3/4) ... [2019-10-22 08:54:34,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:34,810 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:54:34,810 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:54:34,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_40cd940c-59af-487d-8c74-b7f52c31566a/bin/uautomizer/witness.graphml [2019-10-22 08:54:34,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:34,842 INFO L168 Benchmark]: Toolchain (without parser) took 1064.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 891.1 kB. Max. memory is 11.5 GB. [2019-10-22 08:54:34,842 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:34,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.77 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. [2019-10-22 08:54:34,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.66 ms. Allocated memory is still 1.0 GB. Free memory is still 937.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:34,843 INFO L168 Benchmark]: Boogie Preprocessor took 72.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -216.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:34,844 INFO L168 Benchmark]: RCFGBuilder took 165.36 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:34,844 INFO L168 Benchmark]: TraceAbstraction took 537.43 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:34,844 INFO L168 Benchmark]: Witness Printer took 40.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:34,847 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 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.77 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 33.66 ms. Allocated memory is still 1.0 GB. Free memory is still 937.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -216.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 165.36 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 537.43 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Witness Printer took 40.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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, 7 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...