./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/trex03-1.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/loops/trex03-1.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 6afe57eec1ae7b7a346bea173d21fd3ac6dfbe03 .................................................................................................................................................................................................................................................................. 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 17:04:08,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:04:08,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:04:08,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:04:08,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:04:08,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:04:08,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:04:08,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:04:08,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:04:08,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:04:08,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:04:08,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:04:08,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:04:08,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:04:08,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:04:08,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:04:08,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:04:08,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:04:08,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:04:08,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:04:08,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:04:08,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:04:08,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:04:08,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:04:08,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:04:08,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:04:08,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:04:08,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:04:08,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:04:08,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:04:08,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:04:08,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:04:08,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:04:08,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:04:08,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:04:08,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:04:08,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:04:08,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:04:08,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:04:08,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:04:08,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:04:08,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:04:08,412 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:04:08,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:04:08,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:04:08,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:04:08,414 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:04:08,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:04:08,414 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:04:08,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:04:08,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:04:08,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:04:08,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:04:08,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:04:08,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:04:08,416 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:04:08,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:04:08,416 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:04:08,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:04:08,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:04:08,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:04:08,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:04:08,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:04:08,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:04:08,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:04:08,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:04:08,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:04:08,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:04:08,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:04:08,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:04:08,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:04:08,423 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 -> 6afe57eec1ae7b7a346bea173d21fd3ac6dfbe03 [2019-11-28 17:04:08,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:04:08,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:04:08,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:04:08,745 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:04:08,747 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:04:08,748 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex03-1.c [2019-11-28 17:04:08,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b63de7ee/c4b34d99d04540d79ce6e17eedb9b30f/FLAG7909c918c [2019-11-28 17:04:09,304 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:04:09,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex03-1.c [2019-11-28 17:04:09,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b63de7ee/c4b34d99d04540d79ce6e17eedb9b30f/FLAG7909c918c [2019-11-28 17:04:09,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b63de7ee/c4b34d99d04540d79ce6e17eedb9b30f [2019-11-28 17:04:09,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:04:09,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:04:09,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:04:09,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:04:09,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:04:09,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:09,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d217661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09, skipping insertion in model container [2019-11-28 17:04:09,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:09,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:04:09,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:04:09,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:04:09,893 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:04:09,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:04:09,931 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:04:09,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09 WrapperNode [2019-11-28 17:04:09,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:04:09,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:04:09,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:04:09,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:04:09,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:09,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:04:10,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:04:10,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:04:10,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:04:10,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (1/1) ... [2019-11-28 17:04:10,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:04:10,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:04:10,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:04:10,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:04:10,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (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 17:04:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:04:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:04:10,425 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:04:10,425 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 17:04:10,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:10 BoogieIcfgContainer [2019-11-28 17:04:10,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:04:10,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:04:10,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:04:10,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:04:10,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:04:09" (1/3) ... [2019-11-28 17:04:10,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7baf1143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:10, skipping insertion in model container [2019-11-28 17:04:10,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:09" (2/3) ... [2019-11-28 17:04:10,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7baf1143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:10, skipping insertion in model container [2019-11-28 17:04:10,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:10" (3/3) ... [2019-11-28 17:04:10,436 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2019-11-28 17:04:10,456 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:04:10,468 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:04:10,480 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:04:10,504 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:04:10,505 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:04:10,505 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:04:10,505 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:04:10,505 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:04:10,506 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:04:10,506 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:04:10,506 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:04:10,524 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-28 17:04:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 17:04:10,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:04:10,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 17:04:10,531 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:04:10,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:04:10,538 INFO L82 PathProgramCache]: Analyzing trace with hash 30293572, now seen corresponding path program 1 times [2019-11-28 17:04:10,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:04:10,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14338058] [2019-11-28 17:04:10,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:04:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:04:10,651 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 17:04:10,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14338058] [2019-11-28 17:04:10,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:04:10,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:04:10,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46903617] [2019-11-28 17:04:10,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:04:10,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:04:10,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:04:10,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:04:10,676 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-11-28 17:04:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:04:10,692 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-28 17:04:10,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:04:10,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-28 17:04:10,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:04:10,703 INFO L225 Difference]: With dead ends: 21 [2019-11-28 17:04:10,703 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 17:04:10,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:04:10,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 17:04:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 17:04:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 17:04:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-11-28 17:04:10,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2019-11-28 17:04:10,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:04:10,741 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-11-28 17:04:10,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:04:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-11-28 17:04:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 17:04:10,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:04:10,743 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 17:04:10,744 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:04:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:04:10,744 INFO L82 PathProgramCache]: Analyzing trace with hash 29816916, now seen corresponding path program 1 times [2019-11-28 17:04:10,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:04:10,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841883485] [2019-11-28 17:04:10,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:04:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:04:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:04:10,806 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:04:10,806 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:04:10,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:04:10 BoogieIcfgContainer [2019-11-28 17:04:10,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:04:10,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:04:10,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:04:10,824 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:04:10,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:10" (3/4) ... [2019-11-28 17:04:10,827 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:04:10,865 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:04:10,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:04:10,869 INFO L168 Benchmark]: Toolchain (without parser) took 1198.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:04:10,869 INFO L168 Benchmark]: CDTParser took 0.78 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 17:04:10,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.42 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:04:10,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:04:10,872 INFO L168 Benchmark]: Boogie Preprocessor took 42.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:04:10,873 INFO L168 Benchmark]: RCFGBuilder took 328.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:04:10,874 INFO L168 Benchmark]: TraceAbstraction took 395.56 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:04:10,874 INFO L168 Benchmark]: Witness Printer took 41.89 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 17:04:10,879 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 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 258.42 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 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 122.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 328.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 395.56 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Witness Printer took 41.89 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: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L16] unsigned int d1=1, d2=1, d3=1; [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] COND FALSE !(x1>0 && x2>0 && x3>0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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...