./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Mysore-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Mysore-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 c5ec9f93b5d1d857adb6e5c1c104f501725285c2 ................................................................................................................................................................................................................................ 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 0.2.0-5485861 [2020-10-26 04:02:25,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:25,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:26,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:26,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:26,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:26,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:26,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:26,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:26,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:26,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:26,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:26,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:26,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:26,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:26,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:26,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:26,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:26,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:26,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:26,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:26,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:26,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:26,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:26,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:26,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:26,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:26,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:26,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:26,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:26,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:26,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:26,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:26,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:26,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:26,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:26,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:26,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:26,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:26,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:26,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:26,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:26,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:26,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:26,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:26,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:26,208 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:26,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:26,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:26,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:26,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:26,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:26,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:26,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:26,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:26,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:26,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:26,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:26,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:26,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:26,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:26,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:26,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:26,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:26,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:26,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:26,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:26,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:26,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:26,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:26,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5ec9f93b5d1d857adb6e5c1c104f501725285c2 [2020-10-26 04:02:26,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:26,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:26,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:26,675 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:26,676 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:26,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-1.c [2020-10-26 04:02:26,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/757b7604e/b1b7c365bcc348f0af0ba983f92afa8e/FLAG2d1da66a5 [2020-10-26 04:02:27,499 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:27,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-1.c [2020-10-26 04:02:27,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/757b7604e/b1b7c365bcc348f0af0ba983f92afa8e/FLAG2d1da66a5 [2020-10-26 04:02:27,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/757b7604e/b1b7c365bcc348f0af0ba983f92afa8e [2020-10-26 04:02:27,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:27,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:27,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:27,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:27,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:27,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:27" (1/1) ... [2020-10-26 04:02:27,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e3414d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:27, skipping insertion in model container [2020-10-26 04:02:27,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:27" (1/1) ... [2020-10-26 04:02:27,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:27,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:28,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:28,067 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:28,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:28,097 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:28,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28 WrapperNode [2020-10-26 04:02:28,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:28,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:28,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:28,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:28,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:28,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:28,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:28,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:28,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... [2020-10-26 04:02:28,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:28,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:28,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:28,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:28,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:28,456 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:28,457 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:02:28,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:28 BoogieIcfgContainer [2020-10-26 04:02:28,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:28,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:28,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:28,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:28,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:27" (1/3) ... [2020-10-26 04:02:28,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8c1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:28, skipping insertion in model container [2020-10-26 04:02:28,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:28" (2/3) ... [2020-10-26 04:02:28,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8c1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:28, skipping insertion in model container [2020-10-26 04:02:28,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:28" (3/3) ... [2020-10-26 04:02:28,471 INFO L111 eAbstractionObserver]: Analyzing ICFG Mysore-1.c [2020-10-26 04:02:28,499 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:28,515 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-26 04:02:28,554 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-26 04:02:28,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:28,626 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:28,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:28,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:28,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:28,627 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:28,627 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:28,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-26 04:02:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:02:28,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:28,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:02:28,656 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:28,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:28,669 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2020-10-26 04:02:28,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:28,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518693661] [2020-10-26 04:02:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:02:28,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:02:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:02:28,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:02:28,865 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:02:28,866 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:02:28,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:02:28,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:28 BoogieIcfgContainer [2020-10-26 04:02:28,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:28,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:28,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:28,901 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:28,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:28" (3/4) ... [2020-10-26 04:02:28,905 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 04:02:28,974 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:28,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:28,981 INFO L168 Benchmark]: Toolchain (without parser) took 1117.34 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 39.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 572.7 kB. Max. memory is 16.1 GB. [2020-10-26 04:02:28,982 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 35.7 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 31.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:28,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.49 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 28.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:28,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 48.2 MB. Free memory was 28.7 MB in the beginning and 27.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:28,991 INFO L168 Benchmark]: Boogie Preprocessor took 20.74 ms. Allocated memory is still 48.2 MB. Free memory was 27.4 MB in the beginning and 26.5 MB in the end (delta: 865.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:28,992 INFO L168 Benchmark]: RCFGBuilder took 303.96 ms. Allocated memory is still 48.2 MB. Free memory was 26.5 MB in the beginning and 28.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:28,994 INFO L168 Benchmark]: TraceAbstraction took 435.94 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.4 MB in the beginning and 40.5 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:28,994 INFO L168 Benchmark]: Witness Printer took 74.73 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 39.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:29,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 35.7 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 31.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.49 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 28.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 48.2 MB. Free memory was 28.7 MB in the beginning and 27.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.74 ms. Allocated memory is still 48.2 MB. Free memory was 27.4 MB in the beginning and 26.5 MB in the end (delta: 865.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 303.96 ms. Allocated memory is still 48.2 MB. Free memory was 26.5 MB in the beginning and 28.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 435.94 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.4 MB in the beginning and 40.5 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 74.73 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 39.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, x; [L16] x = __VERIFIER_nondet_int() [L17] c = __VERIFIER_nondet_int() [L18] COND TRUE c >= 2 [L19] x + c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...