./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/s3liff.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/array-fpi/s3liff.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 990a7f590c90dd6eae3bb331dd554636fca2d86c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 14:55:36,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 14:55:36,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 14:55:36,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 14:55:36,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 14:55:36,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 14:55:36,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 14:55:36,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 14:55:36,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 14:55:36,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 14:55:36,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 14:55:36,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 14:55:36,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 14:55:36,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 14:55:36,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 14:55:36,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 14:55:36,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 14:55:36,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 14:55:36,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 14:55:36,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 14:55:36,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 14:55:36,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 14:55:36,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 14:55:36,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 14:55:36,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 14:55:36,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 14:55:36,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 14:55:36,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 14:55:36,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 14:55:36,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 14:55:36,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 14:55:36,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 14:55:36,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 14:55:36,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 14:55:36,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 14:55:36,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 14:55:36,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 14:55:36,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 14:55:36,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 14:55:36,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 14:55:36,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 14:55:36,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 14:55:36,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 14:55:36,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 14:55:36,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 14:55:36,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 14:55:36,439 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 14:55:36,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 14:55:36,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 14:55:36,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 14:55:36,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 14:55:36,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 14:55:36,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 14:55:36,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 14:55:36,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 14:55:36,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 14:55:36,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 14:55:36,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 14:55:36,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 14:55:36,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 14:55:36,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 14:55:36,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 14:55:36,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 14:55:36,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 14:55:36,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 14:55:36,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 14:55:36,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 14:55:36,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 14:55:36,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 14:55:36,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 14:55:36,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 14:55:36,447 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 -> 990a7f590c90dd6eae3bb331dd554636fca2d86c [2020-07-28 14:55:36,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 14:55:36,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 14:55:36,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 14:55:36,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 14:55:36,820 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 14:55:36,821 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/s3liff.c [2020-07-28 14:55:36,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e604865/b184453bd34b4f53994b18bf3cd80f5f/FLAG548a1f9e4 [2020-07-28 14:55:37,355 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 14:55:37,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s3liff.c [2020-07-28 14:55:37,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e604865/b184453bd34b4f53994b18bf3cd80f5f/FLAG548a1f9e4 [2020-07-28 14:55:37,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e604865/b184453bd34b4f53994b18bf3cd80f5f [2020-07-28 14:55:37,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 14:55:37,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 14:55:37,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 14:55:37,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 14:55:37,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 14:55:37,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 02:55:37" (1/1) ... [2020-07-28 14:55:37,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fd94d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:37, skipping insertion in model container [2020-07-28 14:55:37,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 02:55:37" (1/1) ... [2020-07-28 14:55:37,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 14:55:37,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 14:55:38,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 14:55:38,029 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 14:55:38,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 14:55:38,142 INFO L208 MainTranslator]: Completed translation [2020-07-28 14:55:38,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38 WrapperNode [2020-07-28 14:55:38,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 14:55:38,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 14:55:38,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 14:55:38,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 14:55:38,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 14:55:38,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 14:55:38,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 14:55:38,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 14:55:38,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... [2020-07-28 14:55:38,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 14:55:38,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 14:55:38,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 14:55:38,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 14:55:38,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 14:55:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 14:55:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 14:55:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-28 14:55:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 14:55:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 14:55:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 14:55:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 14:55:38,690 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 14:55:38,690 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-07-28 14:55:38,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:55:38 BoogieIcfgContainer [2020-07-28 14:55:38,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 14:55:38,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 14:55:38,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 14:55:38,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 14:55:38,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 02:55:37" (1/3) ... [2020-07-28 14:55:38,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc82bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 02:55:38, skipping insertion in model container [2020-07-28 14:55:38,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:55:38" (2/3) ... [2020-07-28 14:55:38,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc82bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 02:55:38, skipping insertion in model container [2020-07-28 14:55:38,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:55:38" (3/3) ... [2020-07-28 14:55:38,712 INFO L109 eAbstractionObserver]: Analyzing ICFG s3liff.c [2020-07-28 14:55:38,722 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 14:55:38,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 14:55:38,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 14:55:38,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 14:55:38,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 14:55:38,760 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 14:55:38,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 14:55:38,761 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 14:55:38,761 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 14:55:38,761 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 14:55:38,761 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 14:55:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-28 14:55:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 14:55:38,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:55:38,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:55:38,782 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:55:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:55:38,788 INFO L82 PathProgramCache]: Analyzing trace with hash -845640729, now seen corresponding path program 1 times [2020-07-28 14:55:38,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:55:38,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220352234] [2020-07-28 14:55:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:55:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 14:55:38,955 INFO L280 TraceCheckUtils]: 0: Hoare triple {25#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {25#true} is VALID [2020-07-28 14:55:38,955 INFO L280 TraceCheckUtils]: 1: Hoare triple {25#true} havoc main_#res;havoc main_#t~nondet0, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~post2, main_#t~mem4, main_#t~mem5, main_#t~mem6, main_#t~post3, main_#t~mem8, main_#t~mem9, main_#t~post7, main_#t~mem10, main_~i~0, main_~#sum~0.base, main_~#sum~0.offset, main_~a~0.base, main_~a~0.offset;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; {25#true} is VALID [2020-07-28 14:55:38,956 INFO L280 TraceCheckUtils]: 2: Hoare triple {25#true} assume !(~N~0 <= 0);assume_abort_if_not_#in~cond := (if ~N~0 <= 536870911 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {25#true} is VALID [2020-07-28 14:55:38,959 INFO L280 TraceCheckUtils]: 3: Hoare triple {25#true} assume 0 == assume_abort_if_not_~cond;assume false; {26#false} is VALID [2020-07-28 14:55:38,959 INFO L280 TraceCheckUtils]: 4: Hoare triple {26#false} havoc main_~i~0;call main_~#sum~0.base, main_~#sum~0.offset := #Ultimate.allocOnStack(8);call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call write~int(~N~0, main_~#sum~0.base, main_~#sum~0.offset, 8);main_~i~0 := 0; {26#false} is VALID [2020-07-28 14:55:38,960 INFO L280 TraceCheckUtils]: 5: Hoare triple {26#false} assume !(main_~i~0 < ~N~0); {26#false} is VALID [2020-07-28 14:55:38,960 INFO L280 TraceCheckUtils]: 6: Hoare triple {26#false} main_~i~0 := 0; {26#false} is VALID [2020-07-28 14:55:38,960 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#false} assume !(main_~i~0 < ~N~0); {26#false} is VALID [2020-07-28 14:55:38,961 INFO L280 TraceCheckUtils]: 8: Hoare triple {26#false} main_~i~0 := 0; {26#false} is VALID [2020-07-28 14:55:38,961 INFO L280 TraceCheckUtils]: 9: Hoare triple {26#false} assume !(main_~i~0 < ~N~0); {26#false} is VALID [2020-07-28 14:55:38,961 INFO L280 TraceCheckUtils]: 10: Hoare triple {26#false} call main_#t~mem10 := read~int(main_~#sum~0.base, main_~#sum~0.offset, 8);__VERIFIER_assert_#in~cond := (if main_#t~mem10 == 4 * ~N~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {26#false} is VALID [2020-07-28 14:55:38,962 INFO L280 TraceCheckUtils]: 11: Hoare triple {26#false} assume 0 == __VERIFIER_assert_~cond; {26#false} is VALID [2020-07-28 14:55:38,962 INFO L280 TraceCheckUtils]: 12: Hoare triple {26#false} assume !false; {26#false} is VALID [2020-07-28 14:55:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 14:55:38,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220352234] [2020-07-28 14:55:38,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 14:55:38,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 14:55:38,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185775967] [2020-07-28 14:55:38,974 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 14:55:38,975 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 14:55:38,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 14:55:39,042 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:55:39,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 14:55:39,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 14:55:39,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 14:55:39,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 14:55:39,055 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-28 14:55:39,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:55:39,122 INFO L93 Difference]: Finished difference Result 40 states and 56 transitions. [2020-07-28 14:55:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 14:55:39,123 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 14:55:39,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 14:55:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 14:55:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 56 transitions. [2020-07-28 14:55:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 14:55:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 56 transitions. [2020-07-28 14:55:39,139 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 56 transitions. [2020-07-28 14:55:39,227 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:55:39,239 INFO L225 Difference]: With dead ends: 40 [2020-07-28 14:55:39,239 INFO L226 Difference]: Without dead ends: 18 [2020-07-28 14:55:39,243 INFO L675 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 [2020-07-28 14:55:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-28 14:55:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-28 14:55:39,277 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 14:55:39,278 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-28 14:55:39,278 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 14:55:39,279 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 14:55:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:55:39,282 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-07-28 14:55:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-07-28 14:55:39,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:55:39,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:55:39,283 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 14:55:39,284 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 14:55:39,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:55:39,286 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-07-28 14:55:39,287 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-07-28 14:55:39,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:55:39,287 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:55:39,288 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 14:55:39,288 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 14:55:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 14:55:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-07-28 14:55:39,292 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2020-07-28 14:55:39,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 14:55:39,292 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-07-28 14:55:39,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 14:55:39,293 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-07-28 14:55:39,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 14:55:39,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:55:39,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:55:39,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 14:55:39,295 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:55:39,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:55:39,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1238667739, now seen corresponding path program 1 times [2020-07-28 14:55:39,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:55:39,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304699298] [2020-07-28 14:55:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:55:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 14:55:39,393 INFO L280 TraceCheckUtils]: 0: Hoare triple {134#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {134#true} is VALID [2020-07-28 14:55:39,394 INFO L280 TraceCheckUtils]: 1: Hoare triple {134#true} havoc main_#res;havoc main_#t~nondet0, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~post2, main_#t~mem4, main_#t~mem5, main_#t~mem6, main_#t~post3, main_#t~mem8, main_#t~mem9, main_#t~post7, main_#t~mem10, main_~i~0, main_~#sum~0.base, main_~#sum~0.offset, main_~a~0.base, main_~a~0.offset;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; {134#true} is VALID [2020-07-28 14:55:39,395 INFO L280 TraceCheckUtils]: 2: Hoare triple {134#true} assume !(~N~0 <= 0);assume_abort_if_not_#in~cond := (if ~N~0 <= 536870911 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {136#(<= 1 ~N~0)} is VALID [2020-07-28 14:55:39,396 INFO L280 TraceCheckUtils]: 3: Hoare triple {136#(<= 1 ~N~0)} assume !(0 == assume_abort_if_not_~cond); {136#(<= 1 ~N~0)} is VALID [2020-07-28 14:55:39,398 INFO L280 TraceCheckUtils]: 4: Hoare triple {136#(<= 1 ~N~0)} havoc main_~i~0;call main_~#sum~0.base, main_~#sum~0.offset := #Ultimate.allocOnStack(8);call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call write~int(~N~0, main_~#sum~0.base, main_~#sum~0.offset, 8);main_~i~0 := 0; {137#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-28 14:55:39,399 INFO L280 TraceCheckUtils]: 5: Hoare triple {137#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ~N~0))} assume !(main_~i~0 < ~N~0); {135#false} is VALID [2020-07-28 14:55:39,400 INFO L280 TraceCheckUtils]: 6: Hoare triple {135#false} main_~i~0 := 0; {135#false} is VALID [2020-07-28 14:55:39,400 INFO L280 TraceCheckUtils]: 7: Hoare triple {135#false} assume !(main_~i~0 < ~N~0); {135#false} is VALID [2020-07-28 14:55:39,401 INFO L280 TraceCheckUtils]: 8: Hoare triple {135#false} main_~i~0 := 0; {135#false} is VALID [2020-07-28 14:55:39,401 INFO L280 TraceCheckUtils]: 9: Hoare triple {135#false} assume !(main_~i~0 < ~N~0); {135#false} is VALID [2020-07-28 14:55:39,401 INFO L280 TraceCheckUtils]: 10: Hoare triple {135#false} call main_#t~mem10 := read~int(main_~#sum~0.base, main_~#sum~0.offset, 8);__VERIFIER_assert_#in~cond := (if main_#t~mem10 == 4 * ~N~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {135#false} is VALID [2020-07-28 14:55:39,402 INFO L280 TraceCheckUtils]: 11: Hoare triple {135#false} assume 0 == __VERIFIER_assert_~cond; {135#false} is VALID [2020-07-28 14:55:39,402 INFO L280 TraceCheckUtils]: 12: Hoare triple {135#false} assume !false; {135#false} is VALID [2020-07-28 14:55:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 14:55:39,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304699298] [2020-07-28 14:55:39,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 14:55:39,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 14:55:39,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647751798] [2020-07-28 14:55:39,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 14:55:39,407 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 14:55:39,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 14:55:39,429 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:55:39,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 14:55:39,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 14:55:39,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 14:55:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 14:55:39,431 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2020-07-28 14:55:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:55:39,589 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2020-07-28 14:55:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 14:55:39,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 14:55:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 14:55:39,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 14:55:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2020-07-28 14:55:39,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 14:55:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2020-07-28 14:55:39,595 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 45 transitions. [2020-07-28 14:55:39,666 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:55:39,668 INFO L225 Difference]: With dead ends: 36 [2020-07-28 14:55:39,668 INFO L226 Difference]: Without dead ends: 25 [2020-07-28 14:55:39,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 14:55:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-28 14:55:39,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2020-07-28 14:55:39,688 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 14:55:39,688 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 21 states. [2020-07-28 14:55:39,688 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 21 states. [2020-07-28 14:55:39,689 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 21 states. [2020-07-28 14:55:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:55:39,691 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2020-07-28 14:55:39,692 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2020-07-28 14:55:39,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:55:39,693 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:55:39,693 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 25 states. [2020-07-28 14:55:39,693 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 25 states. [2020-07-28 14:55:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:55:39,696 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2020-07-28 14:55:39,696 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2020-07-28 14:55:39,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:55:39,697 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:55:39,697 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 14:55:39,698 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 14:55:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-28 14:55:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-07-28 14:55:39,700 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2020-07-28 14:55:39,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 14:55:39,701 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-07-28 14:55:39,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 14:55:39,701 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-07-28 14:55:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-28 14:55:39,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:55:39,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:55:39,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 14:55:39,703 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:55:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:55:39,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2001188913, now seen corresponding path program 1 times [2020-07-28 14:55:39,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:55:39,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576830421] [2020-07-28 14:55:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:55:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 14:55:39,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 14:55:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 14:55:39,790 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 14:55:39,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 14:55:39,820 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 14:55:39,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 14:55:39,862 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 14:55:39,862 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 14:55:39,863 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 14:55:39,863 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 14:55:39,863 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-28 14:55:39,863 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 14:55:39,864 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 14:55:39,864 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 14:55:39,864 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 14:55:39,864 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-28 14:55:39,865 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-28 14:55:39,865 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-28 14:55:39,865 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-28 14:55:39,865 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-28 14:55:39,865 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-28 14:55:39,866 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-28 14:55:39,866 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-28 14:55:39,866 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2020-07-28 14:55:39,866 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 14:55:39,867 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 14:55:39,867 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-28 14:55:39,867 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-28 14:55:39,867 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-28 14:55:39,868 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-28 14:55:39,868 WARN L170 areAnnotationChecker]: L44-4 has no Hoare annotation [2020-07-28 14:55:39,868 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-28 14:55:39,868 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 14:55:39,868 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 14:55:39,869 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 14:55:39,869 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 14:55:39,869 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-28 14:55:39,869 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 14:55:39,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 02:55:39 BoogieIcfgContainer [2020-07-28 14:55:39,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 14:55:39,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 14:55:39,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 14:55:39,873 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 14:55:39,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:55:38" (3/4) ... [2020-07-28 14:55:39,877 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 14:55:39,945 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 14:55:39,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 14:55:39,949 INFO L168 Benchmark]: Toolchain (without parser) took 2210.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 960.2 MB in the beginning and 987.7 MB in the end (delta: -27.5 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. [2020-07-28 14:55:39,950 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 14:55:39,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 14:55:39,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 14:55:39,952 INFO L168 Benchmark]: Boogie Preprocessor took 31.35 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. [2020-07-28 14:55:39,953 INFO L168 Benchmark]: RCFGBuilder took 460.98 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2020-07-28 14:55:39,953 INFO L168 Benchmark]: TraceAbstraction took 1173.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.4 MB in the end (delta: 94.1 MB). Peak memory consumption was 94.1 MB. Max. memory is 11.5 GB. [2020-07-28 14:55:39,954 INFO L168 Benchmark]: Witness Printer took 73.14 ms. Allocated memory is still 1.2 GB. Free memory was 994.4 MB in the beginning and 987.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 14:55:39,958 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.35 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 460.98 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1173.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.4 MB in the end (delta: 94.1 MB). Peak memory consumption was 94.1 MB. Max. memory is 11.5 GB. * Witness Printer took 73.14 ms. Allocated memory is still 1.2 GB. Free memory was 994.4 MB in the beginning and 987.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L11] COND FALSE !(!cond) VAL [N=1] [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = N [L30] i=0 VAL [N=1] [L30] COND TRUE i