./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bf945356a28265a842df89cdbf40bfa9a223140 ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:38,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:38,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:38,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:38,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:38,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:38,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:38,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:38,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:38,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:38,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:38,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:38,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:38,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:38,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:38,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:38,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:38,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:38,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:38,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:38,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:38,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:38,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:38,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:38,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:38,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:38,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:38,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:38,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:38,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:38,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:38,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:38,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:38,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:38,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:38,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:38,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:38,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:38,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:38,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:38,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:38,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-25 08:54:38,899 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:38,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:38,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:38,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:38,911 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:38,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:38,912 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:38,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:38,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:38,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:38,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:38,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:38,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:38,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:38,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-25 08:54:38,914 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:38,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:38,914 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:38,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:38,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:38,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:38,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:38,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:38,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:38,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:38,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:38,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:38,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:38,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:54:38,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:38,918 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_9859f478-b12a-4376-b079-6e4e991eb436/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 ! overflow) ) 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 -> 3bf945356a28265a842df89cdbf40bfa9a223140 [2019-11-25 08:54:39,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:39,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:39,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:39,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:39,080 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:39,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2019-11-25 08:54:39,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/data/0fe6b0646/0cb8b900fc9946b4bba631bc8f4139b1/FLAGd87c3319c [2019-11-25 08:54:39,502 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:39,502 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2019-11-25 08:54:39,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/data/0fe6b0646/0cb8b900fc9946b4bba631bc8f4139b1/FLAGd87c3319c [2019-11-25 08:54:39,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/data/0fe6b0646/0cb8b900fc9946b4bba631bc8f4139b1 [2019-11-25 08:54:39,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:39,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:39,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:39,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:39,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:39,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3333ad42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39, skipping insertion in model container [2019-11-25 08:54:39,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:39,552 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:39,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:39,724 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:39,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:39,861 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:39,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39 WrapperNode [2019-11-25 08:54:39,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:39,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:39,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:39,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:39,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:39,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:39,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:39,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:39,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:39,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:39,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:39,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:39,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/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 [2019-11-25 08:54:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-25 08:54:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-25 08:54:40,133 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:40,133 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:54:40,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:40 BoogieIcfgContainer [2019-11-25 08:54:40,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:40,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:40,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:40,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:40,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:39" (1/3) ... [2019-11-25 08:54:40,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da6a571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:40, skipping insertion in model container [2019-11-25 08:54:40,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (2/3) ... [2019-11-25 08:54:40,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da6a571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:40, skipping insertion in model container [2019-11-25 08:54:40,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:40" (3/3) ... [2019-11-25 08:54:40,142 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o2-2.c [2019-11-25 08:54:40,152 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:40,158 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 08:54:40,167 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 08:54:40,189 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:40,189 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:40,189 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:40,189 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:40,190 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:40,190 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:40,190 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:40,190 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-25 08:54:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:54:40,212 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:40,213 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:40,213 INFO L410 AbstractCegarLoop]: === Iteration 1 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:40,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1550668038, now seen corresponding path program 1 times [2019-11-25 08:54:40,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:40,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111067185] [2019-11-25 08:54:40,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-25 08:54:40,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111067185] [2019-11-25 08:54:40,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:40,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:54:40,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220875700] [2019-11-25 08:54:40,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:40,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:40,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:40,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:40,455 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-11-25 08:54:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:40,505 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-25 08:54:40,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:40,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-25 08:54:40,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:40,515 INFO L225 Difference]: With dead ends: 28 [2019-11-25 08:54:40,515 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:54:40,518 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:54:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-25 08:54:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:54:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-25 08:54:40,551 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2019-11-25 08:54:40,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:40,552 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-25 08:54:40,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:40,552 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-25 08:54:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:54:40,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:40,553 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:40,553 INFO L410 AbstractCegarLoop]: === Iteration 2 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:40,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:40,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1377538544, now seen corresponding path program 1 times [2019-11-25 08:54:40,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:40,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127392631] [2019-11-25 08:54:40,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-25 08:54:40,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127392631] [2019-11-25 08:54:40,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:40,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:54:40,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365626729] [2019-11-25 08:54:40,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:54:40,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:40,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:54:40,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:40,597 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-11-25 08:54:40,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:40,614 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-11-25 08:54:40,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:54:40,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-25 08:54:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:40,616 INFO L225 Difference]: With dead ends: 17 [2019-11-25 08:54:40,616 INFO L226 Difference]: Without dead ends: 16 [2019-11-25 08:54:40,617 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-25 08:54:40,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-25 08:54:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:54:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-25 08:54:40,621 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 15 [2019-11-25 08:54:40,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:40,621 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-25 08:54:40,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:54:40,622 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-25 08:54:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:54:40,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:40,623 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:40,623 INFO L410 AbstractCegarLoop]: === Iteration 3 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-25 08:54:40,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:40,623 INFO L82 PathProgramCache]: Analyzing trace with hash 876403791, now seen corresponding path program 1 times [2019-11-25 08:54:40,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:40,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784154943] [2019-11-25 08:54:40,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-25 08:54:40,733 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784154943] [2019-11-25 08:54:40,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:40,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:54:40,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219199054] [2019-11-25 08:54:40,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:54:40,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:40,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:40,736 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-11-25 08:54:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:40,760 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-25 08:54:40,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:40,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-11-25 08:54:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:40,761 INFO L225 Difference]: With dead ends: 16 [2019-11-25 08:54:40,761 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:54:40,762 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:54:40,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:54:40,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:54:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:40,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-25 08:54:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:40,763 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:40,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:54:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:40,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:54:40,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:54:40,795 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:54:40,795 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:54:40,795 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:54:40,795 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-25 08:54:40,795 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-11-25 08:54:40,796 INFO L447 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: true [2019-11-25 08:54:40,796 INFO L444 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-25 08:54:40,796 INFO L444 ceAbstractionStarter]: For program point L11(lines 11 17) no Hoare annotation was computed. [2019-11-25 08:54:40,796 INFO L444 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2019-11-25 08:54:40,796 INFO L444 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2019-11-25 08:54:40,796 INFO L447 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2019-11-25 08:54:40,796 INFO L444 ceAbstractionStarter]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-11-25 08:54:40,797 INFO L444 ceAbstractionStarter]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-11-25 08:54:40,797 INFO L444 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2019-11-25 08:54:40,797 INFO L447 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: true [2019-11-25 08:54:40,797 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-25 08:54:40,797 INFO L444 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-25 08:54:40,797 INFO L444 ceAbstractionStarter]: For program point L6-2(line 6) no Hoare annotation was computed. [2019-11-25 08:54:40,797 INFO L444 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-11-25 08:54:40,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:40 BoogieIcfgContainer [2019-11-25 08:54:40,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:40,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:40,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:40,801 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:40,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:40" (3/4) ... [2019-11-25 08:54:40,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:54:40,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-11-25 08:54:40,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 08:54:40,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:54:40,867 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9859f478-b12a-4376-b079-6e4e991eb436/bin/uautomizer/witness.graphml [2019-11-25 08:54:40,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:40,869 INFO L168 Benchmark]: Toolchain (without parser) took 1348.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.9 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,870 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-25 08:54:40,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.9 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -222.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:40,871 INFO L168 Benchmark]: Boogie Preprocessor took 12.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:40,872 INFO L168 Benchmark]: RCFGBuilder took 228.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,872 INFO L168 Benchmark]: TraceAbstraction took 665.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,873 INFO L168 Benchmark]: Witness Printer took 66.18 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. [2019-11-25 08:54:40,875 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 341.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.9 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -222.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 228.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 665.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. * Witness Printer took 66.18 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: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 4 SDslu, 55 SDs, 0 SdLazy, 25 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1001 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 20/20 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...