./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et4_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et4_true.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/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 53536d1fdd6afdf5702d18ef21a8c05f68768569 ........................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:37:10,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:37:10,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:37:10,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:37:10,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:37:10,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:37:10,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:37:10,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:37:10,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:37:10,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:37:11,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:37:11,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:37:11,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:37:11,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:37:11,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:37:11,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:37:11,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:37:11,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:37:11,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:37:11,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:37:11,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:37:11,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:37:11,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:37:11,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:37:11,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:37:11,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:37:11,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:37:11,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:37:11,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:37:11,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:37:11,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:37:11,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:37:11,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:37:11,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:37:11,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:37:11,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:37:11,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:37:11,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:37:11,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:37:11,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:37:11,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:37:11,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 23:37:11,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:37:11,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:37:11,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:37:11,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:37:11,060 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:37:11,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:37:11,064 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:37:11,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:37:11,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:37:11,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:37:11,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:37:11,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:37:11,065 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 23:37:11,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:37:11,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:37:11,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:37:11,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:37:11,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:37:11,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:37:11,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:37:11,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:37:11,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:37:11,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:37:11,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:37:11,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:37:11,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:37:11,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:37:11,068 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_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/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 -> 53536d1fdd6afdf5702d18ef21a8c05f68768569 [2019-11-15 23:37:11,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:37:11,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:37:11,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:37:11,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:37:11,113 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:37:11,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/../../sv-benchmarks/c/termination-numeric/Et4_true.c [2019-11-15 23:37:11,184 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/data/6182fb923/5db2a0b98e9f41fb8824cc804bd3e76f/FLAG286479913 [2019-11-15 23:37:11,536 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:37:11,538 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/sv-benchmarks/c/termination-numeric/Et4_true.c [2019-11-15 23:37:11,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/data/6182fb923/5db2a0b98e9f41fb8824cc804bd3e76f/FLAG286479913 [2019-11-15 23:37:11,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/data/6182fb923/5db2a0b98e9f41fb8824cc804bd3e76f [2019-11-15 23:37:11,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:37:11,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:37:11,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:37:11,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:37:11,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:37:11,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:37:11" (1/1) ... [2019-11-15 23:37:11,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405d99ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:11, skipping insertion in model container [2019-11-15 23:37:11,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:37:11" (1/1) ... [2019-11-15 23:37:11,954 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:37:11,973 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:37:12,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:37:12,199 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:37:12,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:37:12,315 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:37:12,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12 WrapperNode [2019-11-15 23:37:12,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:37:12,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:37:12,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:37:12,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:37:12,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:37:12,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:37:12,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:37:12,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:37:12,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... [2019-11-15 23:37:12,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:37:12,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:37:12,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:37:12,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:37:12,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:37:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2019-11-15 23:37:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2019-11-15 23:37:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:37:12,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:37:12,744 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:37:12,745 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 23:37:12,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:37:12 BoogieIcfgContainer [2019-11-15 23:37:12,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:37:12,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:37:12,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:37:12,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:37:12,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:37:11" (1/3) ... [2019-11-15 23:37:12,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50435b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:37:12, skipping insertion in model container [2019-11-15 23:37:12,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:37:12" (2/3) ... [2019-11-15 23:37:12,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50435b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:37:12, skipping insertion in model container [2019-11-15 23:37:12,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:37:12" (3/3) ... [2019-11-15 23:37:12,756 INFO L109 eAbstractionObserver]: Analyzing ICFG Et4_true.c [2019-11-15 23:37:12,763 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:37:12,768 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-11-15 23:37:12,779 INFO L249 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-11-15 23:37:12,802 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:37:12,802 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:37:12,802 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:37:12,802 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:37:12,802 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:37:12,803 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:37:12,803 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:37:12,803 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:37:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-11-15 23:37:12,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 23:37:12,826 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:37:12,827 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 23:37:12,829 INFO L410 AbstractCegarLoop]: === Iteration 1 === [loopErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:37:12,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:37:12,835 INFO L82 PathProgramCache]: Analyzing trace with hash 62657, now seen corresponding path program 1 times [2019-11-15 23:37:12,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:37:12,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910595517] [2019-11-15 23:37:12,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:37:12,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:37:12,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:37:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:37:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:37:12,945 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:37:12,946 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:37:12,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:37:12 BoogieIcfgContainer [2019-11-15 23:37:12,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:37:12,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:37:12,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:37:12,963 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:37:12,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:37:12" (3/4) ... [2019-11-15 23:37:12,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 23:37:13,007 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b179fb6-c6cd-4324-9bd0-ba9216044cc5/bin/uautomizer/witness.graphml [2019-11-15 23:37:13,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:37:13,009 INFO L168 Benchmark]: Toolchain (without parser) took 1087.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:37:13,010 INFO L168 Benchmark]: CDTParser took 0.21 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. [2019-11-15 23:37:13,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:37:13,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:37:13,011 INFO L168 Benchmark]: Boogie Preprocessor took 20.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:37:13,012 INFO L168 Benchmark]: RCFGBuilder took 366.60 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:37:13,013 INFO L168 Benchmark]: TraceAbstraction took 215.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:37:13,013 INFO L168 Benchmark]: Witness Printer took 44.42 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:37:13,016 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 380.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 366.60 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 215.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.42 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 [L35] -x - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 14 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...