./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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/ldv-regression/test12.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7abb34145c960a447e467f16f0baf7f17990fbd7 ............................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:57:30,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:57:30,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:57:30,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:57:30,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:57:30,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:57:30,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:57:30,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:57:30,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:57:30,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:57:30,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:57:30,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:57:30,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:57:30,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:57:30,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:57:30,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:57:30,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:57:30,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:57:30,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:57:30,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:57:30,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:57:30,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:57:30,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:57:30,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:57:30,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:57:30,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:57:30,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:57:30,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:57:30,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:57:30,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:57:30,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:57:30,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:57:30,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:57:30,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:57:30,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:57:30,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:57:30,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:57:30,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:57:30,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:57:30,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:57:30,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:57:30,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:57:30,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:57:30,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:57:30,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:57:30,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:57:30,380 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:57:30,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:57:30,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:57:30,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:57:30,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:57:30,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:57:30,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:57:30,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:57:30,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:57:30,382 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:57:30,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:57:30,383 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:57:30,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:57:30,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:57:30,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:57:30,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:57:30,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:57:30,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:57:30,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:57:30,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:57:30,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:57:30,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:57:30,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:57:30,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:57:30,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:57:30,386 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7abb34145c960a447e467f16f0baf7f17990fbd7 [2019-11-28 16:57:30,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:57:30,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:57:30,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:57:30,703 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:57:30,703 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:57:30,704 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test12.c [2019-11-28 16:57:30,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a502db961/71248836d97c4578aea29abc2f00838d/FLAG12b16a474 [2019-11-28 16:57:31,235 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:57:31,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test12.c [2019-11-28 16:57:31,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a502db961/71248836d97c4578aea29abc2f00838d/FLAG12b16a474 [2019-11-28 16:57:31,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a502db961/71248836d97c4578aea29abc2f00838d [2019-11-28 16:57:31,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:57:31,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:57:31,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:57:31,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:57:31,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:57:31,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:31,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afef053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31, skipping insertion in model container [2019-11-28 16:57:31,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:31,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:57:31,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:57:31,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:57:31,898 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:57:31,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:57:31,943 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:57:31,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31 WrapperNode [2019-11-28 16:57:31,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:57:31,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:57:31,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:57:31,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:57:31,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:57:32,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:57:32,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:57:32,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:57:32,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (1/1) ... [2019-11-28 16:57:32,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:57:32,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:57:32,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:57:32,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:57:32,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (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 16:57:32,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:57:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:57:32,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 16:57:32,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:57:32,387 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:57:32,387 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 16:57:32,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:32 BoogieIcfgContainer [2019-11-28 16:57:32,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:57:32,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:57:32,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:57:32,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:57:32,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:57:31" (1/3) ... [2019-11-28 16:57:32,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae1356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:32, skipping insertion in model container [2019-11-28 16:57:32,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:31" (2/3) ... [2019-11-28 16:57:32,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae1356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:32, skipping insertion in model container [2019-11-28 16:57:32,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:32" (3/3) ... [2019-11-28 16:57:32,396 INFO L109 eAbstractionObserver]: Analyzing ICFG test12.c [2019-11-28 16:57:32,407 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:57:32,414 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:57:32,429 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:57:32,455 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:57:32,456 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:57:32,456 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:57:32,456 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:57:32,456 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:57:32,456 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:57:32,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:57:32,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:57:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 16:57:32,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:57:32,488 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:57:32,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:57:32,490 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:57:32,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:57:32,500 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2019-11-28 16:57:32,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:57:32,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85641034] [2019-11-28 16:57:32,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:57:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:57:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:57:32,669 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:57:32,670 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:57:32,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:57:32 BoogieIcfgContainer [2019-11-28 16:57:32,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:57:32,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:57:32,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:57:32,698 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:57:32,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:32" (3/4) ... [2019-11-28 16:57:32,701 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:57:32,748 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:57:32,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:57:32,751 INFO L168 Benchmark]: Toolchain (without parser) took 1121.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:57:32,752 INFO L168 Benchmark]: CDTParser took 0.32 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 16:57:32,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:32,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:32,754 INFO L168 Benchmark]: Boogie Preprocessor took 21.67 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 16:57:32,757 INFO L168 Benchmark]: RCFGBuilder took 306.61 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:32,759 INFO L168 Benchmark]: TraceAbstraction took 307.78 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:57:32,761 INFO L168 Benchmark]: Witness Printer took 50.39 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 16:57:32,771 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 314.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 115.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 306.61 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 307.78 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 50.39 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int a, b; VAL [a={3:0}, b={2:0}] [L5] COND TRUE a != b VAL [a={3:0}, b={2:0}] [L10] __VERIFIER_error() VAL [a={3:0}, b={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...