./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float1.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_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/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 f58559d137fcf7688e3324763048c6e2c7ffac4b ........................................................................................................................................................................................................................... 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_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/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 f58559d137fcf7688e3324763048c6e2c7ffac4b ..................................................................................................................................................................................................................................................................... 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 22:06:34,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:06:34,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:06:34,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:06:34,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:06:34,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:06:34,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:06:34,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:06:34,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:06:34,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:06:34,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:06:34,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:06:34,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:06:34,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:06:34,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:06:34,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:06:34,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:06:34,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:06:34,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:06:34,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:06:34,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:06:34,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:06:34,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:06:34,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:06:34,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:06:34,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:06:34,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:06:34,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:06:34,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:06:34,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:06:34,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:06:34,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:06:34,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:06:34,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:06:34,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:06:34,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:06:34,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:06:34,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:06:34,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:06:34,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:06:34,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:06:34,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:06:34,464 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:06:34,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:06:34,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:06:34,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:06:34,466 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:06:34,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:06:34,467 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:06:34,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:06:34,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:06:34,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:06:34,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:06:34,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:06:34,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:06:34,468 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:06:34,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:06:34,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:06:34,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:06:34,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:06:34,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:06:34,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:06:34,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:06:34,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:06:34,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:06:34,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:06:34,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:06:34,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:06:34,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:06:34,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:06:34,474 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_822cabb9-f6ff-413b-ac37-02b026f681d5/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 -> f58559d137fcf7688e3324763048c6e2c7ffac4b [2019-11-15 22:06:34,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:06:34,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:06:34,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:06:34,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:06:34,547 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:06:34,548 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-15 22:06:34,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/12d083ef7/eb290cc8f1244f53a0fbdf688e212d13/FLAG3bbb67740 [2019-11-15 22:06:35,007 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:06:35,008 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-15 22:06:35,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/12d083ef7/eb290cc8f1244f53a0fbdf688e212d13/FLAG3bbb67740 [2019-11-15 22:06:35,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/12d083ef7/eb290cc8f1244f53a0fbdf688e212d13 [2019-11-15 22:06:35,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:06:35,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:06:35,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:06:35,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:06:35,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:06:35,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14997bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35, skipping insertion in model container [2019-11-15 22:06:35,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,430 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:06:35,443 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:06:35,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:06:35,663 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:06:35,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:06:35,693 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:06:35,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35 WrapperNode [2019-11-15 22:06:35,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:06:35,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:06:35,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:06:35,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:06:35,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:06:35,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:06:35,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:06:35,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:06:35,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... [2019-11-15 22:06:35,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:06:35,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:06:35,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:06:35,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:06:35,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/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 22:06:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:06:35,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:06:35,943 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:06:35,943 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 22:06:35,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:35 BoogieIcfgContainer [2019-11-15 22:06:35,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:06:35,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:06:35,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:06:35,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:06:35,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:06:35" (1/3) ... [2019-11-15 22:06:35,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5250514c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:06:35, skipping insertion in model container [2019-11-15 22:06:35,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:35" (2/3) ... [2019-11-15 22:06:35,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5250514c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:06:35, skipping insertion in model container [2019-11-15 22:06:35,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:35" (3/3) ... [2019-11-15 22:06:35,955 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2019-11-15 22:06:35,965 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:06:35,981 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 22:06:35,997 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 22:06:36,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:06:36,021 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:06:36,021 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:06:36,022 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:06:36,022 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:06:36,022 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:06:36,022 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:06:36,023 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:06:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-15 22:06:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 22:06:36,049 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:06:36,050 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 22:06:36,052 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:06:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:06:36,058 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-15 22:06:36,066 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:06:36,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767478315] [2019-11-15 22:06:36,066 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:06:36,067 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:06:36,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:06:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:06:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:06:36,150 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:06:36,151 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:06:36,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:06:36 BoogieIcfgContainer [2019-11-15 22:06:36,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:06:36,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:06:36,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:06:36,163 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:06:36,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:35" (3/4) ... [2019-11-15 22:06:36,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:06:36,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:06:36,168 INFO L168 Benchmark]: Toolchain (without parser) took 752.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:36,169 INFO L168 Benchmark]: CDTParser took 0.19 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 22:06:36,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:36,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:36,171 INFO L168 Benchmark]: Boogie Preprocessor took 17.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:36,171 INFO L168 Benchmark]: RCFGBuilder took 200.39 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:36,172 INFO L168 Benchmark]: TraceAbstraction took 217.00 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:36,172 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:36,175 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 277.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.54 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 17.45 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 200.39 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 217.00 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 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 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 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=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 22:06:38,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:06:38,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:06:38,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:06:38,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:06:38,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:06:38,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:06:38,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:06:38,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:06:38,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:06:38,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:06:38,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:06:38,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:06:38,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:06:38,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:06:38,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:06:38,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:06:38,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:06:38,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:06:38,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:06:38,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:06:38,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:06:38,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:06:38,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:06:38,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:06:38,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:06:38,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:06:38,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:06:38,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:06:38,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:06:38,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:06:38,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:06:38,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:06:38,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:06:38,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:06:38,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:06:38,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:06:38,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:06:38,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:06:38,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:06:38,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:06:38,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:06:38,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:06:38,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:06:38,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:06:38,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:06:38,318 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:06:38,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:06:38,319 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:06:38,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:06:38,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:06:38,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:06:38,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:06:38,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:06:38,320 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:06:38,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:06:38,320 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:06:38,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:06:38,321 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:06:38,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:06:38,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:06:38,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:06:38,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:06:38,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:06:38,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:06:38,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:06:38,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:06:38,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:06:38,323 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:06:38,323 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:06:38,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:06:38,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:06:38,324 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_822cabb9-f6ff-413b-ac37-02b026f681d5/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 -> f58559d137fcf7688e3324763048c6e2c7ffac4b [2019-11-15 22:06:38,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:06:38,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:06:38,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:06:38,367 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:06:38,367 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:06:38,368 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-15 22:06:38,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/e05dc7aa0/fbb925b1c11c4038b9c0df95b33d41e7/FLAG96e3caf75 [2019-11-15 22:06:38,815 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:06:38,816 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-15 22:06:38,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/e05dc7aa0/fbb925b1c11c4038b9c0df95b33d41e7/FLAG96e3caf75 [2019-11-15 22:06:38,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/data/e05dc7aa0/fbb925b1c11c4038b9c0df95b33d41e7 [2019-11-15 22:06:38,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:06:38,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:06:38,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:06:38,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:06:38,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:06:38,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:06:38" (1/1) ... [2019-11-15 22:06:38,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aaa16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:38, skipping insertion in model container [2019-11-15 22:06:38,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:06:38" (1/1) ... [2019-11-15 22:06:38,852 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:06:38,865 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:06:38,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:06:39,014 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:06:39,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:06:39,037 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:06:39,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39 WrapperNode [2019-11-15 22:06:39,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:06:39,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:06:39,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:06:39,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:06:39,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:06:39,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:06:39,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:06:39,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:06:39,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... [2019-11-15 22:06:39,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:06:39,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:06:39,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:06:39,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:06:39,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/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 22:06:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:06:39,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:06:39,312 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:06:39,313 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 22:06:39,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:39 BoogieIcfgContainer [2019-11-15 22:06:39,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:06:39,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:06:39,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:06:39,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:06:39,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:06:38" (1/3) ... [2019-11-15 22:06:39,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c351b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:06:39, skipping insertion in model container [2019-11-15 22:06:39,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:39" (2/3) ... [2019-11-15 22:06:39,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c351b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:06:39, skipping insertion in model container [2019-11-15 22:06:39,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:39" (3/3) ... [2019-11-15 22:06:39,321 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2019-11-15 22:06:39,327 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:06:39,332 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 22:06:39,339 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 22:06:39,357 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:06:39,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:06:39,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:06:39,357 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:06:39,357 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:06:39,358 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:06:39,358 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:06:39,358 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:06:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-15 22:06:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 22:06:39,373 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:06:39,373 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 22:06:39,374 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:06:39,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:06:39,378 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-15 22:06:39,385 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:06:39,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617172251] [2019-11-15 22:06:39,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/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 22:06:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:06:39,428 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:06:39,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:06:39,475 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 22:06:39,475 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:06:39,484 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 22:06:39,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617172251] [2019-11-15 22:06:39,486 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:06:39,486 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:06:39,486 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132976899] [2019-11-15 22:06:39,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 22:06:39,491 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:06:39,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:06:39,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:06:39,506 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-11-15 22:06:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:06:39,534 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-11-15 22:06:39,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:06:39,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-15 22:06:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:06:39,542 INFO L225 Difference]: With dead ends: 16 [2019-11-15 22:06:39,542 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:06:39,545 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 [2019-11-15 22:06:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:06:39,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:06:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:06:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:06:39,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-15 22:06:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:06:39,562 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:06:39,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 22:06:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:06:39,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:06:39,763 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:06:39,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:06:39,769 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:06:39,769 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:06:39,769 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:06:39,769 INFO L443 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2019-11-15 22:06:39,770 INFO L443 ceAbstractionStarter]: For program point L2(lines 2 18) no Hoare annotation was computed. [2019-11-15 22:06:39,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:06:39 BoogieIcfgContainer [2019-11-15 22:06:39,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:06:39,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:06:39,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:06:39,773 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:06:39,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:39" (3/4) ... [2019-11-15 22:06:39,777 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:06:39,784 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:06:39,784 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 22:06:39,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_822cabb9-f6ff-413b-ac37-02b026f681d5/bin/uautomizer/witness.graphml [2019-11-15 22:06:39,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:06:39,816 INFO L168 Benchmark]: Toolchain (without parser) took 976.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -109.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:39,816 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:39,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:39,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:39,818 INFO L168 Benchmark]: Boogie Preprocessor took 24.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:39,818 INFO L168 Benchmark]: RCFGBuilder took 169.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:39,819 INFO L168 Benchmark]: TraceAbstraction took 458.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:39,819 INFO L168 Benchmark]: Witness Printer took 40.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:39,822 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 198.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 458.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 2 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=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6 ConjunctsInSsa, 3 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...