./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/indp5f.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/indp5f.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 d2df45d74975e158d7478acad671e24897047424 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:52:03,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 14:52:03,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 14:52:03,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 14:52:03,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 14:52:03,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 14:52:03,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 14:52:03,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 14:52:03,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 14:52:03,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 14:52:03,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 14:52:03,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 14:52:03,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 14:52:03,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 14:52:03,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 14:52:03,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 14:52:03,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 14:52:03,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 14:52:03,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 14:52:03,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 14:52:03,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 14:52:03,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 14:52:03,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 14:52:03,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 14:52:03,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 14:52:03,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 14:52:03,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 14:52:03,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 14:52:03,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 14:52:03,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 14:52:03,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 14:52:03,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 14:52:03,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 14:52:03,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 14:52:03,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 14:52:03,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 14:52:03,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 14:52:03,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 14:52:03,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 14:52:03,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 14:52:03,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 14:52:03,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 14:52:03,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 14:52:03,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 14:52:03,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 14:52:03,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 14:52:03,468 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 14:52:03,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 14:52:03,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 14:52:03,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 14:52:03,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 14:52:03,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 14:52:03,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 14:52:03,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 14:52:03,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 14:52:03,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 14:52:03,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 14:52:03,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 14:52:03,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 14:52:03,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 14:52:03,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 14:52:03,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 14:52:03,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 14:52:03,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 14:52:03,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 14:52:03,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 14:52:03,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 14:52:03,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 14:52:03,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 14:52:03,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 14:52:03,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 14:52:03,475 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 -> d2df45d74975e158d7478acad671e24897047424 [2020-07-28 14:52:03,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 14:52:03,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 14:52:03,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 14:52:03,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 14:52:03,845 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 14:52:03,846 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/indp5f.c [2020-07-28 14:52:03,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba1c86f1/54d42742cced47ae9e01a57eae2330b5/FLAGcf011bfe2 [2020-07-28 14:52:04,311 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 14:52:04,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/indp5f.c [2020-07-28 14:52:04,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba1c86f1/54d42742cced47ae9e01a57eae2330b5/FLAGcf011bfe2 [2020-07-28 14:52:04,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba1c86f1/54d42742cced47ae9e01a57eae2330b5 [2020-07-28 14:52:04,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 14:52:04,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 14:52:04,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 14:52:04,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 14:52:04,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 14:52:04,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 02:52:04" (1/1) ... [2020-07-28 14:52:04,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4699e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:04, skipping insertion in model container [2020-07-28 14:52:04,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 02:52:04" (1/1) ... [2020-07-28 14:52:04,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 14:52:04,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 14:52:04,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 14:52:05,004 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 14:52:05,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 14:52:05,133 INFO L208 MainTranslator]: Completed translation [2020-07-28 14:52:05,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05 WrapperNode [2020-07-28 14:52:05,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 14:52:05,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 14:52:05,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 14:52:05,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 14:52:05,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 14:52:05,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 14:52:05,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 14:52:05,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 14:52:05,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (1/1) ... [2020-07-28 14:52:05,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 14:52:05,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 14:52:05,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 14:52:05,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 14:52:05,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (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 14:52:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 14:52:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 14:52:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-28 14:52:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 14:52:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 14:52:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 14:52:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 14:52:05,732 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 14:52:05,733 INFO L295 CfgBuilder]: Removed 13 assume(true) statements. [2020-07-28 14:52:05,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:52:05 BoogieIcfgContainer [2020-07-28 14:52:05,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 14:52:05,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 14:52:05,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 14:52:05,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 14:52:05,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 02:52:04" (1/3) ... [2020-07-28 14:52:05,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7101ec75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 02:52:05, skipping insertion in model container [2020-07-28 14:52:05,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:52:05" (2/3) ... [2020-07-28 14:52:05,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7101ec75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 02:52:05, skipping insertion in model container [2020-07-28 14:52:05,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:52:05" (3/3) ... [2020-07-28 14:52:05,749 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-07-28 14:52:05,760 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 14:52:05,767 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 14:52:05,783 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 14:52:05,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 14:52:05,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 14:52:05,809 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 14:52:05,810 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 14:52:05,810 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 14:52:05,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 14:52:05,811 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 14:52:05,811 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 14:52:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-28 14:52:05,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 14:52:05,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:52:05,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:52:05,842 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:52:05,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:52:05,848 INFO L82 PathProgramCache]: Analyzing trace with hash 118053350, now seen corresponding path program 1 times [2020-07-28 14:52:05,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:52:05,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318625910] [2020-07-28 14:52:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:52:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 14:52:06,002 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {30#true} is VALID [2020-07-28 14:52:06,003 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#true} havoc main_#res;havoc main_#t~nondet0, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~post2, main_#t~mem4, main_#t~post3, main_#t~mem6, main_#t~post5, main_#t~mem8, main_#t~post7, main_#t~mem10, main_#t~mem11, main_#t~post9, main_#t~mem12, main_~i~0, main_~a~0.base, main_~a~0.offset, main_~#sum~0.base, main_~#sum~0.offset;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; {30#true} is VALID [2020-07-28 14:52:06,004 INFO L280 TraceCheckUtils]: 2: Hoare triple {30#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; {30#true} is VALID [2020-07-28 14:52:06,005 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#true} assume 0 == assume_abort_if_not_~cond;assume false; {31#false} is VALID [2020-07-28 14:52:06,005 INFO L280 TraceCheckUtils]: 4: Hoare triple {31#false} havoc main_~i~0;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_~#sum~0.base, main_~#sum~0.offset := #Ultimate.allocOnStack(8);call write~int(1, main_~#sum~0.base, main_~#sum~0.offset, 8);main_~i~0 := 0; {31#false} is VALID [2020-07-28 14:52:06,006 INFO L280 TraceCheckUtils]: 5: Hoare triple {31#false} assume !(main_~i~0 < ~N~0); {31#false} is VALID [2020-07-28 14:52:06,006 INFO L280 TraceCheckUtils]: 6: Hoare triple {31#false} main_~i~0 := 0; {31#false} is VALID [2020-07-28 14:52:06,007 INFO L280 TraceCheckUtils]: 7: Hoare triple {31#false} assume !(main_~i~0 < ~N~0); {31#false} is VALID [2020-07-28 14:52:06,007 INFO L280 TraceCheckUtils]: 8: Hoare triple {31#false} main_~i~0 := 0; {31#false} is VALID [2020-07-28 14:52:06,007 INFO L280 TraceCheckUtils]: 9: Hoare triple {31#false} assume !(main_~i~0 < ~N~0); {31#false} is VALID [2020-07-28 14:52:06,008 INFO L280 TraceCheckUtils]: 10: Hoare triple {31#false} main_~i~0 := 0; {31#false} is VALID [2020-07-28 14:52:06,008 INFO L280 TraceCheckUtils]: 11: Hoare triple {31#false} assume !true; {31#false} is VALID [2020-07-28 14:52:06,008 INFO L280 TraceCheckUtils]: 12: Hoare triple {31#false} main_~i~0 := 0; {31#false} is VALID [2020-07-28 14:52:06,009 INFO L280 TraceCheckUtils]: 13: Hoare triple {31#false} assume !true; {31#false} is VALID [2020-07-28 14:52:06,009 INFO L280 TraceCheckUtils]: 14: Hoare triple {31#false} call main_#t~mem12 := read~int(main_~#sum~0.base, main_~#sum~0.offset, 8);__VERIFIER_assert_#in~cond := (if main_#t~mem12 == ~N~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {31#false} is VALID [2020-07-28 14:52:06,010 INFO L280 TraceCheckUtils]: 15: Hoare triple {31#false} assume 0 == __VERIFIER_assert_~cond; {31#false} is VALID [2020-07-28 14:52:06,010 INFO L280 TraceCheckUtils]: 16: Hoare triple {31#false} assume !false; {31#false} is VALID [2020-07-28 14:52:06,013 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 14:52:06,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318625910] [2020-07-28 14:52:06,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 14:52:06,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 14:52:06,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557157495] [2020-07-28 14:52:06,022 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-07-28 14:52:06,024 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 14:52:06,028 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 14:52:06,060 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:52:06,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 14:52:06,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 14:52:06,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 14:52:06,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 14:52:06,073 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-07-28 14:52:06,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:52:06,139 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2020-07-28 14:52:06,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 14:52:06,139 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-07-28 14:52:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 14:52:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 14:52:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 14:52:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 14:52:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 14:52:06,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 72 transitions. [2020-07-28 14:52:06,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:52:06,280 INFO L225 Difference]: With dead ends: 50 [2020-07-28 14:52:06,280 INFO L226 Difference]: Without dead ends: 23 [2020-07-28 14:52:06,284 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 14:52:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-28 14:52:06,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-07-28 14:52:06,321 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 14:52:06,321 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2020-07-28 14:52:06,322 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-28 14:52:06,322 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-28 14:52:06,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:52:06,326 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2020-07-28 14:52:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-07-28 14:52:06,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:52:06,327 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:52:06,327 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-28 14:52:06,327 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-28 14:52:06,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:52:06,331 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2020-07-28 14:52:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-07-28 14:52:06,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:52:06,332 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:52:06,332 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 14:52:06,332 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 14:52:06,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-28 14:52:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-07-28 14:52:06,336 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2020-07-28 14:52:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 14:52:06,337 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-07-28 14:52:06,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 14:52:06,337 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-07-28 14:52:06,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 14:52:06,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:52:06,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:52:06,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 14:52:06,339 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:52:06,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:52:06,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1065017552, now seen corresponding path program 1 times [2020-07-28 14:52:06,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:52:06,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348597675] [2020-07-28 14:52:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:52:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 14:52:06,449 INFO L280 TraceCheckUtils]: 0: Hoare triple {170#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {170#true} is VALID [2020-07-28 14:52:06,450 INFO L280 TraceCheckUtils]: 1: Hoare triple {170#true} havoc main_#res;havoc main_#t~nondet0, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~post2, main_#t~mem4, main_#t~post3, main_#t~mem6, main_#t~post5, main_#t~mem8, main_#t~post7, main_#t~mem10, main_#t~mem11, main_#t~post9, main_#t~mem12, main_~i~0, main_~a~0.base, main_~a~0.offset, main_~#sum~0.base, main_~#sum~0.offset;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; {170#true} is VALID [2020-07-28 14:52:06,451 INFO L280 TraceCheckUtils]: 2: Hoare triple {170#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; {172#(<= 1 ~N~0)} is VALID [2020-07-28 14:52:06,452 INFO L280 TraceCheckUtils]: 3: Hoare triple {172#(<= 1 ~N~0)} assume !(0 == assume_abort_if_not_~cond); {172#(<= 1 ~N~0)} is VALID [2020-07-28 14:52:06,454 INFO L280 TraceCheckUtils]: 4: Hoare triple {172#(<= 1 ~N~0)} havoc main_~i~0;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_~#sum~0.base, main_~#sum~0.offset := #Ultimate.allocOnStack(8);call write~int(1, main_~#sum~0.base, main_~#sum~0.offset, 8);main_~i~0 := 0; {173#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-28 14:52:06,455 INFO L280 TraceCheckUtils]: 5: Hoare triple {173#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ~N~0))} assume !(main_~i~0 < ~N~0); {171#false} is VALID [2020-07-28 14:52:06,456 INFO L280 TraceCheckUtils]: 6: Hoare triple {171#false} main_~i~0 := 0; {171#false} is VALID [2020-07-28 14:52:06,456 INFO L280 TraceCheckUtils]: 7: Hoare triple {171#false} assume !(main_~i~0 < ~N~0); {171#false} is VALID [2020-07-28 14:52:06,456 INFO L280 TraceCheckUtils]: 8: Hoare triple {171#false} main_~i~0 := 0; {171#false} is VALID [2020-07-28 14:52:06,457 INFO L280 TraceCheckUtils]: 9: Hoare triple {171#false} assume !(main_~i~0 < ~N~0); {171#false} is VALID [2020-07-28 14:52:06,457 INFO L280 TraceCheckUtils]: 10: Hoare triple {171#false} main_~i~0 := 0; {171#false} is VALID [2020-07-28 14:52:06,458 INFO L280 TraceCheckUtils]: 11: Hoare triple {171#false} assume !(main_~i~0 < ~N~0); {171#false} is VALID [2020-07-28 14:52:06,458 INFO L280 TraceCheckUtils]: 12: Hoare triple {171#false} main_~i~0 := 0; {171#false} is VALID [2020-07-28 14:52:06,459 INFO L280 TraceCheckUtils]: 13: Hoare triple {171#false} assume !(main_~i~0 < ~N~0); {171#false} is VALID [2020-07-28 14:52:06,459 INFO L280 TraceCheckUtils]: 14: Hoare triple {171#false} call main_#t~mem12 := read~int(main_~#sum~0.base, main_~#sum~0.offset, 8);__VERIFIER_assert_#in~cond := (if main_#t~mem12 == ~N~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {171#false} is VALID [2020-07-28 14:52:06,459 INFO L280 TraceCheckUtils]: 15: Hoare triple {171#false} assume 0 == __VERIFIER_assert_~cond; {171#false} is VALID [2020-07-28 14:52:06,460 INFO L280 TraceCheckUtils]: 16: Hoare triple {171#false} assume !false; {171#false} is VALID [2020-07-28 14:52:06,461 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 14:52:06,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348597675] [2020-07-28 14:52:06,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 14:52:06,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 14:52:06,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949917500] [2020-07-28 14:52:06,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 14:52:06,465 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 14:52:06,465 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 14:52:06,492 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:52:06,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 14:52:06,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 14:52:06,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 14:52:06,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 14:52:06,496 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2020-07-28 14:52:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:52:06,699 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2020-07-28 14:52:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 14:52:06,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 14:52:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 14:52:06,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 14:52:06,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2020-07-28 14:52:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 14:52:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2020-07-28 14:52:06,709 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 61 transitions. [2020-07-28 14:52:06,792 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:52:06,794 INFO L225 Difference]: With dead ends: 49 [2020-07-28 14:52:06,795 INFO L226 Difference]: Without dead ends: 33 [2020-07-28 14:52:06,796 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 14:52:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-28 14:52:06,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2020-07-28 14:52:06,823 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 14:52:06,823 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 28 states. [2020-07-28 14:52:06,824 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 28 states. [2020-07-28 14:52:06,824 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 28 states. [2020-07-28 14:52:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:52:06,830 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-07-28 14:52:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-28 14:52:06,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:52:06,832 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:52:06,832 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 33 states. [2020-07-28 14:52:06,832 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 33 states. [2020-07-28 14:52:06,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:52:06,837 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-07-28 14:52:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-28 14:52:06,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:52:06,838 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:52:06,838 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 14:52:06,838 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 14:52:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-28 14:52:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-07-28 14:52:06,846 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-07-28 14:52:06,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 14:52:06,851 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-07-28 14:52:06,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 14:52:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-07-28 14:52:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-28 14:52:06,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:52:06,853 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:52:06,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 14:52:06,853 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:52:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:52:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash 524088314, now seen corresponding path program 1 times [2020-07-28 14:52:06,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:52:06,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620730490] [2020-07-28 14:52:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:52:06,894 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-28 14:52:06,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916570635] [2020-07-28 14:52:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 14:52:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 14:52:06,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 14:52:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 14:52:06,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 14:52:07,060 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 14:52:07,061 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 14:52:07,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-28 14:52:07,341 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 14:52:07,342 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 14:52:07,342 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 14:52:07,342 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 14:52:07,343 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-28 14:52:07,343 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 14:52:07,343 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 14:52:07,343 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 14:52:07,344 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 14:52:07,344 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-28 14:52:07,344 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-28 14:52:07,344 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-28 14:52:07,344 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-28 14:52:07,345 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-28 14:52:07,345 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-28 14:52:07,345 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-28 14:52:07,345 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-28 14:52:07,346 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2020-07-28 14:52:07,346 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-28 14:52:07,346 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-28 14:52:07,346 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-28 14:52:07,347 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-28 14:52:07,348 WARN L170 areAnnotationChecker]: L40-4 has no Hoare annotation [2020-07-28 14:52:07,348 WARN L170 areAnnotationChecker]: L40-2 has no Hoare annotation [2020-07-28 14:52:07,349 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2020-07-28 14:52:07,349 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2020-07-28 14:52:07,349 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2020-07-28 14:52:07,350 WARN L170 areAnnotationChecker]: L45-4 has no Hoare annotation [2020-07-28 14:52:07,351 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2020-07-28 14:52:07,351 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 14:52:07,351 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 14:52:07,351 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 14:52:07,352 WARN L170 areAnnotationChecker]: L50-4 has no Hoare annotation [2020-07-28 14:52:07,356 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-28 14:52:07,356 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 14:52:07,357 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 14:52:07,357 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 14:52:07,357 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 14:52:07,357 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-28 14:52:07,358 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 14:52:07,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 02:52:07 BoogieIcfgContainer [2020-07-28 14:52:07,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 14:52:07,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 14:52:07,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 14:52:07,362 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 14:52:07,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:52:05" (3/4) ... [2020-07-28 14:52:07,366 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 14:52:07,451 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 14:52:07,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 14:52:07,455 INFO L168 Benchmark]: Toolchain (without parser) took 2760.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 960.2 MB in the beginning and 949.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 132.2 MB. Max. memory is 11.5 GB. [2020-07-28 14:52:07,455 INFO L168 Benchmark]: CDTParser took 0.73 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 14:52:07,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-07-28 14:52:07,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.28 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 14:52:07,457 INFO L168 Benchmark]: Boogie Preprocessor took 34.45 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 14:52:07,458 INFO L168 Benchmark]: RCFGBuilder took 509.76 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2020-07-28 14:52:07,459 INFO L168 Benchmark]: TraceAbstraction took 1619.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.8 MB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. [2020-07-28 14:52:07,460 INFO L168 Benchmark]: Witness Printer took 89.92 ms. Allocated memory is still 1.2 GB. Free memory was 955.8 MB in the beginning and 949.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 14:52:07,463 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 0.73 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 438.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.28 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 34.45 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 509.76 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1619.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.8 MB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. * Witness Printer took 89.92 ms. Allocated memory is still 1.2 GB. Free memory was 955.8 MB in the beginning and 949.1 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 *a = malloc(sizeof(long long)*N); [L27] long long sum[1]; [L29] sum[0] = 1 [L30] i=0 VAL [N=1] [L30] COND TRUE i