./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/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_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/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 0.1.24-678e011 [2019-11-20 10:50:23,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:50:23,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:50:23,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:50:23,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:50:23,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:50:23,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:50:23,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:50:23,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:50:23,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:50:23,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:50:23,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:50:23,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:50:23,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:50:23,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:50:23,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:50:23,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:50:23,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:50:23,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:50:23,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:50:23,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:50:23,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:50:23,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:50:23,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:50:23,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:50:23,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:50:23,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:50:23,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:50:23,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:50:23,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:50:23,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:50:23,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:50:23,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:50:23,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:50:23,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:50:23,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:50:23,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:50:23,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:50:23,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:50:23,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:50:23,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:50:23,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:50:23,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:50:23,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:50:23,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:50:23,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:50:23,954 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:50:23,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:50:23,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:50:23,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:50:23,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:50:23,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:50:23,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:50:23,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:50:23,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:50:23,957 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:50:23,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:50:23,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:50:23,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:50:23,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:50:23,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:50:23,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:50:23,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:50:23,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:50:23,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:50:23,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:50:23,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:50:23,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:50:23,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:50:23,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:50:23,961 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_9278bf25-03ca-481b-929a-b370e030dcac/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 [2019-11-20 10:50:24,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:50:24,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:50:24,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:50:24,145 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:50:24,145 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:50:24,146 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-20 10:50:24,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/42ab84ab8/c3c33dc5f91849488de43eb81d90ee8e/FLAG5373c3766 [2019-11-20 10:50:24,599 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:50:24,600 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-20 10:50:24,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/42ab84ab8/c3c33dc5f91849488de43eb81d90ee8e/FLAG5373c3766 [2019-11-20 10:50:25,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/42ab84ab8/c3c33dc5f91849488de43eb81d90ee8e [2019-11-20 10:50:25,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:50:25,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:50:25,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:50:25,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:50:25,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:50:25,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3340a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25, skipping insertion in model container [2019-11-20 10:50:25,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,042 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:50:25,059 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:50:25,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:50:25,211 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:50:25,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:50:25,307 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:50:25,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25 WrapperNode [2019-11-20 10:50:25,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:50:25,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:50:25,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:50:25,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:50:25,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:50:25,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:50:25,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:50:25,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:50:25,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... [2019-11-20 10:50:25,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:50:25,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:50:25,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:50:25,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:50:25,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/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 [2019-11-20 10:50:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:50:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:50:25,510 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:50:25,510 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 10:50:25,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:25 BoogieIcfgContainer [2019-11-20 10:50:25,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:50:25,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:50:25,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:50:25,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:50:25,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:25" (1/3) ... [2019-11-20 10:50:25,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a683892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:25, skipping insertion in model container [2019-11-20 10:50:25,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:25" (2/3) ... [2019-11-20 10:50:25,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a683892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:25, skipping insertion in model container [2019-11-20 10:50:25,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:25" (3/3) ... [2019-11-20 10:50:25,519 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2019-11-20 10:50:25,529 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:50:25,536 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-20 10:50:25,547 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-20 10:50:25,571 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:50:25,571 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:50:25,571 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:50:25,571 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:50:25,572 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:50:25,572 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:50:25,572 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:50:25,573 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:50:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 10:50:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 10:50:25,595 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:50:25,596 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 10:50:25,597 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:50:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:50:25,602 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-20 10:50:25,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:50:25,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406236129] [2019-11-20 10:50:25,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:50:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:50:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:50:25,711 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:50:25,711 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:50:25,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:50:25 BoogieIcfgContainer [2019-11-20 10:50:25,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:50:25,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:50:25,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:50:25,727 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:50:25,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:25" (3/4) ... [2019-11-20 10:50:25,731 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:50:25,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:50:25,735 INFO L168 Benchmark]: Toolchain (without parser) took 712.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:50:25,735 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:50:25,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:25,737 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.04 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. [2019-11-20 10:50:25,738 INFO L168 Benchmark]: Boogie Preprocessor took 16.64 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. [2019-11-20 10:50:25,739 INFO L168 Benchmark]: RCFGBuilder took 156.24 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:25,740 INFO L168 Benchmark]: TraceAbstraction took 215.25 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:25,740 INFO L168 Benchmark]: Witness Printer took 4.37 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. [2019-11-20 10:50:25,748 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.04 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 16.64 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 156.24 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 215.25 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.37 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 0.1.24-678e011 [2019-11-20 10:50:27,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:50:27,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:50:27,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:50:27,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:50:27,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:50:27,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:50:27,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:50:27,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:50:27,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:50:27,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:50:27,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:50:27,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:50:27,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:50:27,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:50:27,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:50:27,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:50:27,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:50:27,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:50:27,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:50:27,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:50:27,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:50:27,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:50:27,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:50:27,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:50:27,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:50:27,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:50:27,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:50:27,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:50:27,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:50:27,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:50:27,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:50:27,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:50:27,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:50:27,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:50:27,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:50:27,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:50:27,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:50:27,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:50:27,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:50:27,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:50:27,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:50:27,642 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:50:27,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:50:27,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:50:27,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:50:27,643 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:50:27,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:50:27,644 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:50:27,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:50:27,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:50:27,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:50:27,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:50:27,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:50:27,645 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:50:27,645 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:50:27,646 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:50:27,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:50:27,646 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:50:27,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:50:27,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:50:27,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:50:27,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:50:27,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:50:27,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:50:27,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:50:27,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:50:27,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:50:27,648 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:50:27,648 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:50:27,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:50:27,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:50:27,649 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_9278bf25-03ca-481b-929a-b370e030dcac/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 [2019-11-20 10:50:27,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:50:27,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:50:27,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:50:27,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:50:27,932 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:50:27,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-20 10:50:27,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/e6bb4dd24/b3a2c0a8d724421690f0177a95020561/FLAG2b52dc0f5 [2019-11-20 10:50:28,324 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:50:28,324 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/sv-benchmarks/c/floats-cbmc-regression/float1.c [2019-11-20 10:50:28,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/e6bb4dd24/b3a2c0a8d724421690f0177a95020561/FLAG2b52dc0f5 [2019-11-20 10:50:28,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/data/e6bb4dd24/b3a2c0a8d724421690f0177a95020561 [2019-11-20 10:50:28,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:50:28,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:50:28,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:50:28,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:50:28,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:50:28,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:28,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43264eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28, skipping insertion in model container [2019-11-20 10:50:28,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:28,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:50:28,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:50:28,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:50:28,922 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:50:28,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:50:28,952 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:50:28,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28 WrapperNode [2019-11-20 10:50:28,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:50:28,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:50:28,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:50:28,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:50:28,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:28,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:28,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:50:28,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:50:28,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:50:28,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:50:29,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... [2019-11-20 10:50:29,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:50:29,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:50:29,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:50:29,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:50:29,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/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 [2019-11-20 10:50:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:50:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:50:29,247 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:50:29,247 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 10:50:29,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:29 BoogieIcfgContainer [2019-11-20 10:50:29,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:50:29,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:50:29,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:50:29,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:50:29,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:28" (1/3) ... [2019-11-20 10:50:29,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70209b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:29, skipping insertion in model container [2019-11-20 10:50:29,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:28" (2/3) ... [2019-11-20 10:50:29,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70209b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:29, skipping insertion in model container [2019-11-20 10:50:29,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:29" (3/3) ... [2019-11-20 10:50:29,255 INFO L109 eAbstractionObserver]: Analyzing ICFG float1.c [2019-11-20 10:50:29,263 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:50:29,268 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-20 10:50:29,275 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-20 10:50:29,291 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:50:29,292 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:50:29,292 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:50:29,292 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:50:29,292 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:50:29,292 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:50:29,292 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:50:29,292 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:50:29,303 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 10:50:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 10:50:29,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:50:29,307 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 10:50:29,308 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:50:29,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:50:29,312 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-20 10:50:29,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:50:29,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896821585] [2019-11-20 10:50:29,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/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 [2019-11-20 10:50:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:50:29,358 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:50:29,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:50:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:50:29,403 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:50:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:50:29,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896821585] [2019-11-20 10:50:29,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:50:29,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 10:50:29,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372967756] [2019-11-20 10:50:29,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:50:29,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:50:29,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:50:29,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:50:29,433 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-11-20 10:50:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:50:29,463 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-11-20 10:50:29,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:50:29,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-20 10:50:29,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:50:29,472 INFO L225 Difference]: With dead ends: 16 [2019-11-20 10:50:29,472 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:50:29,475 INFO L630 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 [2019-11-20 10:50:29,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:50:29,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:50:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:50:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:50:29,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-20 10:50:29,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:50:29,502 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:50:29,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:50:29,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:50:29,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:50:29,716 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 10:50:29,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 10:50:29,722 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 10:50:29,722 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 10:50:29,722 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 10:50:29,722 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2019-11-20 10:50:29,722 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-20 10:50:29,722 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-20 10:50:29,723 INFO L444 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-20 10:50:29,723 INFO L444 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-20 10:50:29,723 INFO L444 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-20 10:50:29,723 INFO L444 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2019-11-20 10:50:29,723 INFO L444 ceAbstractionStarter]: For program point L2(lines 2 18) no Hoare annotation was computed. [2019-11-20 10:50:29,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:50:29 BoogieIcfgContainer [2019-11-20 10:50:29,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:50:29,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:50:29,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:50:29,725 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:50:29,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:29" (3/4) ... [2019-11-20 10:50:29,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:50:29,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:50:29,739 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 10:50:29,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9278bf25-03ca-481b-929a-b370e030dcac/bin/uautomizer/witness.graphml [2019-11-20 10:50:29,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:50:29,770 INFO L168 Benchmark]: Toolchain (without parser) took 1024.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:29,771 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:50:29,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.63 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:29,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.95 ms. Allocated memory is still 1.0 GB. Free memory is still 949.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:50:29,772 INFO L168 Benchmark]: Boogie Preprocessor took 79.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:29,773 INFO L168 Benchmark]: RCFGBuilder took 187.00 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: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:29,773 INFO L168 Benchmark]: TraceAbstraction took 475.58 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:50:29,774 INFO L168 Benchmark]: Witness Printer took 42.98 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. [2019-11-20 10:50:29,776 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.63 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 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 27.95 ms. Allocated memory is still 1.0 GB. Free memory is still 949.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.00 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: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 475.58 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Witness Printer took 42.98 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: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 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...