./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.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 cf525d8633b3b7346e37d1ca80a1eb5813bdc12a ............................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 02:50:39,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:50:39,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:50:39,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:50:39,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:50:39,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:50:39,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:50:39,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:50:39,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:50:39,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:50:39,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:50:39,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:50:39,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:50:39,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:50:39,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:50:39,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:50:39,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:50:39,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:50:39,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:50:39,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:50:39,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:50:39,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:50:39,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:50:39,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:50:39,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:50:39,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:50:39,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:50:39,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:50:39,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:50:39,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:50:39,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:50:39,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:50:39,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:50:39,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:50:39,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:50:39,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:50:39,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:50:39,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:50:39,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:50:39,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:50:39,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:50:39,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:50:39,191 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:50:39,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:50:39,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:50:39,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:50:39,193 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:50:39,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:50:39,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:50:39,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:50:39,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:50:39,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:50:39,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:50:39,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:50:39,195 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:50:39,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:50:39,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:50:39,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:50:39,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:50:39,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:50:39,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:50:39,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:50:39,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:50:39,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:50:39,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:50:39,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:50:39,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:50:39,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:50:39,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:50:39,199 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 -> /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 -> cf525d8633b3b7346e37d1ca80a1eb5813bdc12a [2019-11-28 02:50:39,506 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:50:39,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:50:39,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:50:39,530 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:50:39,530 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:50:39,531 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2019-11-28 02:50:39,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a40310da/e306f9c864d84c78aa25151a70891eeb/FLAGc1a13e800 [2019-11-28 02:50:40,059 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:50:40,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2019-11-28 02:50:40,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a40310da/e306f9c864d84c78aa25151a70891eeb/FLAGc1a13e800 [2019-11-28 02:50:40,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a40310da/e306f9c864d84c78aa25151a70891eeb [2019-11-28 02:50:40,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:50:40,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:50:40,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:50:40,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:50:40,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:50:40,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cffb93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40, skipping insertion in model container [2019-11-28 02:50:40,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:50:40,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:50:40,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:50:40,610 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:50:40,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:50:40,637 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:50:40,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40 WrapperNode [2019-11-28 02:50:40,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:50:40,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:50:40,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:50:40,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:50:40,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:50:40,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:50:40,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:50:40,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:50:40,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (1/1) ... [2019-11-28 02:50:40,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:50:40,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:50:40,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:50:40,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:50:40,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (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 [2019-11-28 02:50:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:50:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:50:41,011 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:50:41,012 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:50:41,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:41 BoogieIcfgContainer [2019-11-28 02:50:41,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:50:41,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:50:41,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:50:41,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:50:41,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:50:40" (1/3) ... [2019-11-28 02:50:41,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736b7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:41, skipping insertion in model container [2019-11-28 02:50:41,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:40" (2/3) ... [2019-11-28 02:50:41,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736b7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:41, skipping insertion in model container [2019-11-28 02:50:41,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:41" (3/3) ... [2019-11-28 02:50:41,021 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2019-11-28 02:50:41,032 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:50:41,039 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-28 02:50:41,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 02:50:41,086 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:50:41,086 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:50:41,086 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:50:41,087 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:50:41,087 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:50:41,087 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:50:41,087 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:50:41,088 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:50:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-28 02:50:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:50:41,119 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:41,121 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:50:41,122 INFO L410 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]=== [2019-11-28 02:50:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash 963723, now seen corresponding path program 1 times [2019-11-28 02:50:41,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:41,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068657793] [2019-11-28 02:50:41,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:41,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068657793] [2019-11-28 02:50:41,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:41,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:50:41,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913850615] [2019-11-28 02:50:41,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:41,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:41,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:41,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:41,331 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-11-28 02:50:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:41,412 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2019-11-28 02:50:41,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:41,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:50:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:41,425 INFO L225 Difference]: With dead ends: 41 [2019-11-28 02:50:41,426 INFO L226 Difference]: Without dead ends: 28 [2019-11-28 02:50:41,429 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-28 02:50:41,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2019-11-28 02:50:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 02:50:41,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2019-11-28 02:50:41,469 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 4 [2019-11-28 02:50:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:41,470 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2019-11-28 02:50:41,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2019-11-28 02:50:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:50:41,471 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:41,472 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:50:41,472 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:41,473 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-28 02:50:41,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:41,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455742803] [2019-11-28 02:50:41,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:50:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:50:41,523 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:50:41,523 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:50:41,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:50:41 BoogieIcfgContainer [2019-11-28 02:50:41,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:50:41,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:50:41,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:50:41,547 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:50:41,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:41" (3/4) ... [2019-11-28 02:50:41,551 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:50:41,601 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:50:41,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:50:41,604 INFO L168 Benchmark]: Toolchain (without parser) took 1204.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -123.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:41,606 INFO L168 Benchmark]: CDTParser took 1.48 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:50:41,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.33 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:41,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:41,609 INFO L168 Benchmark]: Boogie Preprocessor took 25.58 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:41,609 INFO L168 Benchmark]: RCFGBuilder took 260.14 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:41,610 INFO L168 Benchmark]: TraceAbstraction took 532.02 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:41,611 INFO L168 Benchmark]: Witness Printer took 54.73 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. [2019-11-28 02:50:41,615 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.33 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.58 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 260.14 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 532.02 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 54.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n, b; [L15] n = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 && 0 <= y && y <= n [L20] COND TRUE b == 0 [L21] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 16 SDslu, 13 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...