./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 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/loop-invgen/id_trans.i -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 6b853b7a72b17d5b4054a16a7ba98c728e55c23b .......................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 21:16:38,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:16:38,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:16:38,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:16:38,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:16:38,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:16:38,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:16:38,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:16:38,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:16:38,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:16:38,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:16:38,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:16:38,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:16:38,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:16:38,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:16:38,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:16:38,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:16:38,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:16:38,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:16:38,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:16:38,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:16:38,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:16:38,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:16:38,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:16:38,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:16:38,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:16:38,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:16:38,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:16:38,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:16:38,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:16:38,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:16:38,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:16:38,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:16:38,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:16:38,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:16:38,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:16:38,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:16:38,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:16:38,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:16:38,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:16:38,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:16:38,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:16:38,584 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:16:38,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:16:38,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:16:38,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:16:38,586 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:16:38,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:16:38,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:16:38,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:16:38,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:16:38,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:16:38,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:16:38,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:16:38,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:16:38,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:16:38,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:16:38,589 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:16:38,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:16:38,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:16:38,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:16:38,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:16:38,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:16:38,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:16:38,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:16:38,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:16:38,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:16:38,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:16:38,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:16:38,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:16:38,593 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 -> 6b853b7a72b17d5b4054a16a7ba98c728e55c23b [2019-11-19 21:16:38,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:16:38,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:16:38,923 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:16:38,925 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:16:38,925 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:16:38,926 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2019-11-19 21:16:38,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2005a31/fda2c27c1cf04593a2e023c1ed2628eb/FLAGc47ec2204 [2019-11-19 21:16:39,465 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:16:39,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2019-11-19 21:16:39,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2005a31/fda2c27c1cf04593a2e023c1ed2628eb/FLAGc47ec2204 [2019-11-19 21:16:39,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2005a31/fda2c27c1cf04593a2e023c1ed2628eb [2019-11-19 21:16:39,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:16:39,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:16:39,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:16:39,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:16:39,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:16:39,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:16:39" (1/1) ... [2019-11-19 21:16:39,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1b55f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:39, skipping insertion in model container [2019-11-19 21:16:39,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:16:39" (1/1) ... [2019-11-19 21:16:39,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:16:39,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:16:40,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:16:40,042 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:16:40,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:16:40,074 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:16:40,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40 WrapperNode [2019-11-19 21:16:40,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:16:40,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:16:40,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:16:40,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:16:40,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:16:40,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:16:40,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:16:40,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:16:40,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (1/1) ... [2019-11-19 21:16:40,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:16:40,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:16:40,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:16:40,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:16:40,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (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 [2019-11-19 21:16:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:16:40,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:16:40,452 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:16:40,453 INFO L285 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-19 21:16:40,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:16:40 BoogieIcfgContainer [2019-11-19 21:16:40,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:16:40,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:16:40,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:16:40,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:16:40,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:16:39" (1/3) ... [2019-11-19 21:16:40,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8a5b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:16:40, skipping insertion in model container [2019-11-19 21:16:40,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:16:40" (2/3) ... [2019-11-19 21:16:40,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8a5b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:16:40, skipping insertion in model container [2019-11-19 21:16:40,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:16:40" (3/3) ... [2019-11-19 21:16:40,471 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2019-11-19 21:16:40,484 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:16:40,493 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 21:16:40,514 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 21:16:40,550 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:16:40,551 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:16:40,551 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:16:40,551 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:16:40,552 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:16:40,552 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:16:40,552 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:16:40,554 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:16:40,568 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-19 21:16:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 21:16:40,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:16:40,574 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 21:16:40,574 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:16:40,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:16:40,579 INFO L82 PathProgramCache]: Analyzing trace with hash 29745418, now seen corresponding path program 1 times [2019-11-19 21:16:40,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:16:40,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493675502] [2019-11-19 21:16:40,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:16:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:16:40,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:16:40,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493675502] [2019-11-19 21:16:40,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:16:40,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 21:16:40,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445634851] [2019-11-19 21:16:40,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 21:16:40,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:16:40,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 21:16:40,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 21:16:40,761 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-11-19 21:16:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:16:40,858 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2019-11-19 21:16:40,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 21:16:40,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 21:16:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:16:40,867 INFO L225 Difference]: With dead ends: 48 [2019-11-19 21:16:40,868 INFO L226 Difference]: Without dead ends: 16 [2019-11-19 21:16:40,871 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:16:40,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-19 21:16:40,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-11-19 21:16:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-19 21:16:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-11-19 21:16:40,900 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2019-11-19 21:16:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:16:40,900 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-11-19 21:16:40,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 21:16:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-11-19 21:16:40,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 21:16:40,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:16:40,901 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:16:40,902 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:16:40,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:16:40,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1479268755, now seen corresponding path program 1 times [2019-11-19 21:16:40,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:16:40,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653544830] [2019-11-19 21:16:40,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:16:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:16:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:16:40,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653544830] [2019-11-19 21:16:40,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:16:40,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 21:16:40,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127242109] [2019-11-19 21:16:40,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 21:16:40,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:16:40,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 21:16:40,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 21:16:40,957 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2019-11-19 21:16:41,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:16:41,017 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-19 21:16:41,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 21:16:41,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-19 21:16:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:16:41,018 INFO L225 Difference]: With dead ends: 16 [2019-11-19 21:16:41,018 INFO L226 Difference]: Without dead ends: 14 [2019-11-19 21:16:41,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 21:16:41,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-19 21:16:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-19 21:16:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-19 21:16:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-19 21:16:41,025 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2019-11-19 21:16:41,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:16:41,026 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-19 21:16:41,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 21:16:41,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-19 21:16:41,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 21:16:41,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:16:41,027 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:16:41,027 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:16:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:16:41,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1002264813, now seen corresponding path program 1 times [2019-11-19 21:16:41,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:16:41,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435903897] [2019-11-19 21:16:41,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:16:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:16:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:16:41,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:16:41,177 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:16:41,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:16:41 BoogieIcfgContainer [2019-11-19 21:16:41,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:16:41,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:16:41,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:16:41,206 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:16:41,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:16:40" (3/4) ... [2019-11-19 21:16:41,209 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 21:16:41,249 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:16:41,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:16:41,252 INFO L168 Benchmark]: Toolchain (without parser) took 1406.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -40.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:41,253 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-19 21:16:41,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.07 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. [2019-11-19 21:16:41,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:41,256 INFO L168 Benchmark]: Boogie Preprocessor took 21.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:41,256 INFO L168 Benchmark]: RCFGBuilder took 265.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:41,257 INFO L168 Benchmark]: TraceAbstraction took 745.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:16:41,258 INFO L168 Benchmark]: Witness Printer took 44.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:16:41,262 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 229.07 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 90.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 265.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 745.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) [L4] COND FALSE !(!(cond)) [L4] COND FALSE !(!(cond)) [L4] COND FALSE !(!(cond)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 25 SDslu, 16 SDs, 0 SdLazy, 29 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...