./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.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/NonTerminationSimple3.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 3212fd9063decb133bdb443685d0895cff5d8c70 ................................................................................................................................................................................................................................ 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 04:02:41,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:41,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:41,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:41,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:41,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:41,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:41,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:41,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:41,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:41,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:41,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:41,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:41,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:41,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:41,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:41,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:41,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:41,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:41,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:41,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:41,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:41,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:41,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:41,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:41,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:41,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:41,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:41,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:41,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:41,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:41,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:41,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:41,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:41,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:41,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:41,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:41,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:41,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:41,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:41,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:41,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:41,242 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:41,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:41,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:41,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:41,244 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:41,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:41,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:41,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:41,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:41,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:41,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:41,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:41,246 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:41,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:41,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:41,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:41,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:41,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:41,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:41,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:41,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:41,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:41,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:41,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:41,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:41,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:41,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:41,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:41,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3212fd9063decb133bdb443685d0895cff5d8c70 [2020-10-26 04:02:41,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:41,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:41,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:41,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:41,648 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:41,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c [2020-10-26 04:02:41,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e61a126a/47fc93db963a4eb6869f885dc85c5b09/FLAGdc305bc83 [2020-10-26 04:02:42,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:42,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c [2020-10-26 04:02:42,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e61a126a/47fc93db963a4eb6869f885dc85c5b09/FLAGdc305bc83 [2020-10-26 04:02:42,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e61a126a/47fc93db963a4eb6869f885dc85c5b09 [2020-10-26 04:02:42,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:42,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:42,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:42,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:42,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:42,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:42,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668d5879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42, skipping insertion in model container [2020-10-26 04:02:42,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:42,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:42,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:42,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:42,919 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:42,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:42,965 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:42,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42 WrapperNode [2020-10-26 04:02:42,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:42,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:42,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:42,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:42,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:42,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:43,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:43,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:43,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:43,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (1/1) ... [2020-10-26 04:02:43,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:43,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:43,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:43,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:43,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (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 04:02:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:43,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:43,356 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:43,356 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:02:43,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:43 BoogieIcfgContainer [2020-10-26 04:02:43,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:43,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:43,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:43,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:43,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:42" (1/3) ... [2020-10-26 04:02:43,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b76c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:43, skipping insertion in model container [2020-10-26 04:02:43,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:42" (2/3) ... [2020-10-26 04:02:43,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b76c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:43, skipping insertion in model container [2020-10-26 04:02:43,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:43" (3/3) ... [2020-10-26 04:02:43,368 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple3.c [2020-10-26 04:02:43,381 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:43,387 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-26 04:02:43,405 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-26 04:02:43,436 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:43,436 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:43,436 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:43,436 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:43,436 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:43,437 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:43,437 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:43,437 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-26 04:02:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-26 04:02:43,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:43,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-26 04:02:43,461 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:43,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:43,469 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-26 04:02:43,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:43,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262805004] [2020-10-26 04:02:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:02:43,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:02:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:02:43,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:02:43,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:02:43,623 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 04:02:43,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:02:43,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:43 BoogieIcfgContainer [2020-10-26 04:02:43,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:43,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:43,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:43,643 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:43,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:43" (3/4) ... [2020-10-26 04:02:43,646 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 04:02:43,686 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:43,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:43,689 INFO L168 Benchmark]: Toolchain (without parser) took 984.85 ms. Allocated memory is still 48.2 MB. Free memory was 26.1 MB in the beginning and 29.7 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:43,690 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 21.1 MB in the beginning and 21.1 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:43,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.75 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 28.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:43,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 48.2 MB. Free memory was 28.4 MB in the beginning and 27.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:43,693 INFO L168 Benchmark]: Boogie Preprocessor took 25.54 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 26.3 MB in the end (delta: 873.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:43,694 INFO L168 Benchmark]: RCFGBuilder took 315.43 ms. Allocated memory is still 48.2 MB. Free memory was 26.2 MB in the beginning and 29.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:43,695 INFO L168 Benchmark]: TraceAbstraction took 281.64 ms. Allocated memory is still 48.2 MB. Free memory was 29.5 MB in the beginning and 31.2 MB in the end (delta: -1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:43,696 INFO L168 Benchmark]: Witness Printer took 43.42 ms. Allocated memory is still 48.2 MB. Free memory was 31.2 MB in the beginning and 29.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:43,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 21.1 MB in the beginning and 21.1 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.75 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 28.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.06 ms. Allocated memory is still 48.2 MB. Free memory was 28.4 MB in the beginning and 27.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.54 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 26.3 MB in the end (delta: 873.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 315.43 ms. Allocated memory is still 48.2 MB. Free memory was 26.2 MB in the beginning and 29.9 MB in the end (delta: -3.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 281.64 ms. Allocated memory is still 48.2 MB. Free memory was 29.5 MB in the beginning and 31.2 MB in the end (delta: -1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 43.42 ms. Allocated memory is still 48.2 MB. Free memory was 31.2 MB in the beginning and 29.7 MB in the end (delta: 1.5 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int c, x; [L15] c = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x >= 0 [L18] x + c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=10occurred 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...