./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/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 64bit --witnessprinter.graph.data.programhash fa16f28cdab01c0d49bf2bd46e148912a30ce280 ..................................................................................................................................................................................................................................................................................................................................................................................... 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 10:07:57,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:07:57,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:07:57,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:07:57,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:07:57,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:07:57,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:07:57,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:07:57,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:07:57,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:07:57,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:07:57,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:07:57,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:07:57,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:07:57,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:07:57,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:07:57,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:07:57,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:07:57,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:07:57,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:07:57,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:07:57,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:07:57,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:07:57,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:07:57,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:07:57,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:07:57,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:07:57,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:07:57,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:07:57,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:07:57,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:07:57,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:07:57,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:07:57,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:07:57,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:07:57,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:07:57,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:07:57,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:07:57,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:07:57,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:07:57,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:07:57,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 10:07:57,847 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:07:57,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:07:57,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:07:57,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:07:57,849 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:07:57,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:07:57,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:07:57,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:07:57,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:07:57,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:07:57,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:07:57,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:07:57,851 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 10:07:57,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:07:57,852 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:07:57,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:07:57,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:07:57,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:07:57,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:07:57,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:07:57,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:07:57,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:07:57,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:07:57,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:07:57,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:07:57,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:07:57,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:07:57,854 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_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2019-11-20 10:07:58,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:07:58,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:07:58,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:07:58,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:07:58,032 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:07:58,032 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Parallel.c [2019-11-20 10:07:58,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/data/626a1aa9d/be2da9a07d0a4ca0ba114bbf2c0aa2f7/FLAGf383ecbb1 [2019-11-20 10:07:58,523 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:07:58,524 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/sv-benchmarks/c/termination-crafted/Parallel.c [2019-11-20 10:07:58,530 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/data/626a1aa9d/be2da9a07d0a4ca0ba114bbf2c0aa2f7/FLAGf383ecbb1 [2019-11-20 10:07:58,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/data/626a1aa9d/be2da9a07d0a4ca0ba114bbf2c0aa2f7 [2019-11-20 10:07:58,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:07:58,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:07:58,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:07:58,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:07:58,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:07:58,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f1b7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58, skipping insertion in model container [2019-11-20 10:07:58,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,561 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:07:58,576 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:07:58,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:07:58,766 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:07:58,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:07:58,861 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:07:58,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58 WrapperNode [2019-11-20 10:07:58,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:07:58,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:07:58,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:07:58,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:07:58,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:07:58,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:07:58,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:07:58,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:07:58,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... [2019-11-20 10:07:58,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:07:58,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:07:58,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:07:58,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:07:58,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/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 10:07:58,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:07:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:07:59,140 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:07:59,140 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 10:07:59,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:07:59 BoogieIcfgContainer [2019-11-20 10:07:59,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:07:59,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:07:59,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:07:59,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:07:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:07:58" (1/3) ... [2019-11-20 10:07:59,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d0cbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:07:59, skipping insertion in model container [2019-11-20 10:07:59,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:07:58" (2/3) ... [2019-11-20 10:07:59,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d0cbd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:07:59, skipping insertion in model container [2019-11-20 10:07:59,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:07:59" (3/3) ... [2019-11-20 10:07:59,148 INFO L109 eAbstractionObserver]: Analyzing ICFG Parallel.c [2019-11-20 10:07:59,155 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:07:59,159 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 10:07:59,170 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 10:07:59,189 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:07:59,189 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:07:59,189 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:07:59,189 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:07:59,190 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:07:59,190 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:07:59,190 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:07:59,190 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:07:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-20 10:07:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 10:07:59,206 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:07:59,207 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 10:07:59,207 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:07:59,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:07:59,212 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-20 10:07:59,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:07:59,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066146604] [2019-11-20 10:07:59,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:07:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:07:59,346 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 10:07:59,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066146604] [2019-11-20 10:07:59,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:07:59,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 10:07:59,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284581301] [2019-11-20 10:07:59,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:07:59,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:07:59,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:07:59,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:07:59,372 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-20 10:07:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:07:59,403 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-20 10:07:59,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:07:59,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 10:07:59,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:07:59,415 INFO L225 Difference]: With dead ends: 19 [2019-11-20 10:07:59,415 INFO L226 Difference]: Without dead ends: 10 [2019-11-20 10:07:59,417 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:07:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-20 10:07:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-20 10:07:59,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 10:07:59,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-20 10:07:59,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-11-20 10:07:59,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:07:59,462 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-20 10:07:59,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:07:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-20 10:07:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 10:07:59,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:07:59,463 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 10:07:59,463 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:07:59,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:07:59,464 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-20 10:07:59,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:07:59,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823167716] [2019-11-20 10:07:59,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:07:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:07:59,487 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 10:07:59,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823167716] [2019-11-20 10:07:59,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:07:59,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 10:07:59,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231614398] [2019-11-20 10:07:59,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:07:59,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:07:59,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:07:59,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:07:59,490 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-11-20 10:07:59,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:07:59,506 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-11-20 10:07:59,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:07:59,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 10:07:59,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:07:59,508 INFO L225 Difference]: With dead ends: 10 [2019-11-20 10:07:59,508 INFO L226 Difference]: Without dead ends: 9 [2019-11-20 10:07:59,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:07:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-20 10:07:59,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-20 10:07:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-20 10:07:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-20 10:07:59,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-11-20 10:07:59,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:07:59,517 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-20 10:07:59,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:07:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-20 10:07:59,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 10:07:59,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:07:59,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 10:07:59,518 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:07:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:07:59,519 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-20 10:07:59,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:07:59,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905967367] [2019-11-20 10:07:59,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:07:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:07:59,555 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 10:07:59,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905967367] [2019-11-20 10:07:59,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:07:59,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:07:59,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301437633] [2019-11-20 10:07:59,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:07:59,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:07:59,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:07:59,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:07:59,558 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2019-11-20 10:07:59,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:07:59,594 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-20 10:07:59,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:07:59,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-20 10:07:59,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:07:59,596 INFO L225 Difference]: With dead ends: 9 [2019-11-20 10:07:59,596 INFO L226 Difference]: Without dead ends: 8 [2019-11-20 10:07:59,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:07:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-20 10:07:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-20 10:07:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-20 10:07:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-11-20 10:07:59,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2019-11-20 10:07:59,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:07:59,599 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-20 10:07:59,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:07:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-20 10:07:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 10:07:59,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:07:59,600 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 10:07:59,600 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:07:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:07:59,601 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-20 10:07:59,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:07:59,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415520903] [2019-11-20 10:07:59,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:07:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:07:59,618 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 10:07:59,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415520903] [2019-11-20 10:07:59,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:07:59,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:07:59,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676011337] [2019-11-20 10:07:59,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:07:59,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:07:59,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:07:59,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:07:59,621 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-11-20 10:07:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:07:59,633 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-20 10:07:59,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:07:59,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 10:07:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:07:59,634 INFO L225 Difference]: With dead ends: 8 [2019-11-20 10:07:59,634 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:07:59,635 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:07:59,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:07:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:07:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:07:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:07:59,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-20 10:07:59,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:07:59,636 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:07:59,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:07:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:07:59,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:07:59,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 10:07:59,668 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 10:07:59,668 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 10:07:59,668 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-20 10:07:59,669 INFO L440 ceAbstractionStarter]: At program point L29(lines 17 30) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-11-20 10:07:59,669 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 27) no Hoare annotation was computed. [2019-11-20 10:07:59,669 INFO L440 ceAbstractionStarter]: At program point L23-2(lines 22 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-20 10:07:59,669 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-20 10:07:59,669 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2019-11-20 10:07:59,669 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 10:07:59,670 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 10:07:59,670 INFO L444 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2019-11-20 10:07:59,670 INFO L444 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-20 10:07:59,670 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-20 10:07:59,670 INFO L444 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-20 10:07:59,670 INFO L444 ceAbstractionStarter]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2019-11-20 10:07:59,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:07:59 BoogieIcfgContainer [2019-11-20 10:07:59,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:07:59,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:07:59,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:07:59,688 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:07:59,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:07:59" (3/4) ... [2019-11-20 10:07:59,691 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:07:59,699 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:07:59,699 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 10:07:59,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b5a1bc89-474c-4a18-a6b0-ba2e8b61a426/bin/uautomizer/witness.graphml [2019-11-20 10:07:59,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:07:59,739 INFO L168 Benchmark]: Toolchain (without parser) took 1193.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:07:59,739 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:07:59,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -206.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:07:59,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.06 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. [2019-11-20 10:07:59,741 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 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. [2019-11-20 10:07:59,741 INFO L168 Benchmark]: RCFGBuilder took 229.83 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: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:07:59,742 INFO L168 Benchmark]: TraceAbstraction took 543.37 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: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:07:59,742 INFO L168 Benchmark]: Witness Printer took 49.79 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 10:07:59,744 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -206.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.06 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 21.18 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 229.83 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: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 543.37 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: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. * Witness Printer took 49.79 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 22 SDslu, 2 SDs, 0 SdLazy, 30 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...