./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ms3f.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/ms3f.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 eccdb18b6cdbd3a5b5b3ab336cc31f2ae3991a58 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:52:59,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 14:52:59,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 14:52:59,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 14:52:59,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 14:52:59,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 14:52:59,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 14:52:59,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 14:52:59,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 14:52:59,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 14:52:59,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 14:52:59,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 14:52:59,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 14:52:59,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 14:52:59,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 14:52:59,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 14:52:59,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 14:52:59,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 14:52:59,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 14:52:59,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 14:52:59,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 14:52:59,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 14:52:59,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 14:52:59,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 14:52:59,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 14:52:59,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 14:52:59,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 14:52:59,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 14:52:59,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 14:52:59,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 14:52:59,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 14:52:59,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 14:52:59,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 14:52:59,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 14:52:59,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 14:52:59,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 14:52:59,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 14:52:59,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 14:52:59,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 14:52:59,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 14:52:59,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 14:52:59,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 14:52:59,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 14:52:59,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 14:52:59,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 14:52:59,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 14:52:59,497 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 14:52:59,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 14:52:59,498 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 14:52:59,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 14:52:59,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 14:52:59,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 14:52:59,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 14:52:59,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 14:52:59,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 14:52:59,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 14:52:59,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 14:52:59,502 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 14:52:59,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 14:52:59,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 14:52:59,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 14:52:59,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 14:52:59,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 14:52:59,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 14:52:59,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 14:52:59,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 14:52:59,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 14:52:59,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 14:52:59,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 14:52:59,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 14:52:59,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 14:52:59,509 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 -> eccdb18b6cdbd3a5b5b3ab336cc31f2ae3991a58 [2020-07-28 14:52:59,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 14:52:59,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 14:52:59,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 14:52:59,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 14:52:59,848 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 14:52:59,848 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms3f.c [2020-07-28 14:52:59,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de25491b/46481f891b184e0999f6595a8d5f5be8/FLAG90e9e215c [2020-07-28 14:53:00,356 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 14:53:00,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms3f.c [2020-07-28 14:53:00,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de25491b/46481f891b184e0999f6595a8d5f5be8/FLAG90e9e215c [2020-07-28 14:53:00,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de25491b/46481f891b184e0999f6595a8d5f5be8 [2020-07-28 14:53:00,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 14:53:00,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 14:53:00,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 14:53:00,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 14:53:00,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 14:53:00,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 02:53:00" (1/1) ... [2020-07-28 14:53:00,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c04553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:00, skipping insertion in model container [2020-07-28 14:53:00,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 02:53:00" (1/1) ... [2020-07-28 14:53:00,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 14:53:00,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 14:53:00,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 14:53:00,965 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 14:53:00,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 14:53:01,000 INFO L208 MainTranslator]: Completed translation [2020-07-28 14:53:01,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01 WrapperNode [2020-07-28 14:53:01,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 14:53:01,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 14:53:01,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 14:53:01,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 14:53:01,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 14:53:01,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 14:53:01,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 14:53:01,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 14:53:01,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (1/1) ... [2020-07-28 14:53:01,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 14:53:01,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 14:53:01,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 14:53:01,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 14:53:01,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (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 14:53:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 14:53:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 14:53:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-28 14:53:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 14:53:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 14:53:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 14:53:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 14:53:01,517 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 14:53:01,517 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-28 14:53:01,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:53:01 BoogieIcfgContainer [2020-07-28 14:53:01,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 14:53:01,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 14:53:01,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 14:53:01,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 14:53:01,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 02:53:00" (1/3) ... [2020-07-28 14:53:01,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42de72ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 02:53:01, skipping insertion in model container [2020-07-28 14:53:01,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 02:53:01" (2/3) ... [2020-07-28 14:53:01,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42de72ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 02:53:01, skipping insertion in model container [2020-07-28 14:53:01,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:53:01" (3/3) ... [2020-07-28 14:53:01,530 INFO L109 eAbstractionObserver]: Analyzing ICFG ms3f.c [2020-07-28 14:53:01,541 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 14:53:01,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 14:53:01,562 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 14:53:01,590 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 14:53:01,590 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 14:53:01,591 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 14:53:01,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 14:53:01,591 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 14:53:01,591 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 14:53:01,592 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 14:53:01,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 14:53:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-28 14:53:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 14:53:01,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:53:01,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:53:01,612 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:53:01,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:53:01,617 INFO L82 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2020-07-28 14:53:01,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:53:01,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770383076] [2020-07-28 14:53:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:53:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 14:53:01,770 INFO L280 TraceCheckUtils]: 0: Hoare triple {22#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {22#true} is VALID [2020-07-28 14:53:01,770 INFO L280 TraceCheckUtils]: 1: Hoare triple {22#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~post3, main_#t~mem6, 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; {22#true} is VALID [2020-07-28 14:53:01,771 INFO L280 TraceCheckUtils]: 2: Hoare triple {22#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; {22#true} is VALID [2020-07-28 14:53:01,773 INFO L280 TraceCheckUtils]: 3: Hoare triple {22#true} assume 0 == assume_abort_if_not_~cond;assume false; {23#false} is VALID [2020-07-28 14:53:01,774 INFO L280 TraceCheckUtils]: 4: Hoare triple {23#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;main_~i~0 := 0; {23#false} is VALID [2020-07-28 14:53:01,774 INFO L280 TraceCheckUtils]: 5: Hoare triple {23#false} assume !(main_~i~0 < ~N~0); {23#false} is VALID [2020-07-28 14:53:01,774 INFO L280 TraceCheckUtils]: 6: Hoare triple {23#false} main_~i~0 := 0; {23#false} is VALID [2020-07-28 14:53:01,775 INFO L280 TraceCheckUtils]: 7: Hoare triple {23#false} assume !(main_~i~0 < ~N~0); {23#false} is VALID [2020-07-28 14:53:01,775 INFO L280 TraceCheckUtils]: 8: Hoare triple {23#false} call main_#t~mem6 := read~int(main_~#sum~0.base, main_~#sum~0.offset, 8);__VERIFIER_assert_#in~cond := (if main_#t~mem6 > 2 * ~N~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {23#false} is VALID [2020-07-28 14:53:01,776 INFO L280 TraceCheckUtils]: 9: Hoare triple {23#false} assume 0 == __VERIFIER_assert_~cond; {23#false} is VALID [2020-07-28 14:53:01,776 INFO L280 TraceCheckUtils]: 10: Hoare triple {23#false} assume !false; {23#false} is VALID [2020-07-28 14:53:01,779 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 14:53:01,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770383076] [2020-07-28 14:53:01,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 14:53:01,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 14:53:01,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135397176] [2020-07-28 14:53:01,789 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 14:53:01,790 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 14:53:01,794 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 14:53:01,822 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:53:01,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 14:53:01,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 14:53:01,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 14:53:01,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 14:53:01,838 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-07-28 14:53:01,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:53:01,924 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2020-07-28 14:53:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 14:53:01,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-28 14:53:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 14:53:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 14:53:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 14:53:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 14:53:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2020-07-28 14:53:01,944 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 46 transitions. [2020-07-28 14:53:02,032 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:53:02,042 INFO L225 Difference]: With dead ends: 34 [2020-07-28 14:53:02,043 INFO L226 Difference]: Without dead ends: 15 [2020-07-28 14:53:02,046 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 14:53:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-28 14:53:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-28 14:53:02,085 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 14:53:02,086 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 15 states. [2020-07-28 14:53:02,087 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 14:53:02,087 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 14:53:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:53:02,090 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-07-28 14:53:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-28 14:53:02,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:53:02,090 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:53:02,091 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 15 states. [2020-07-28 14:53:02,091 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 15 states. [2020-07-28 14:53:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:53:02,094 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-07-28 14:53:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-28 14:53:02,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:53:02,095 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:53:02,095 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 14:53:02,096 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 14:53:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 14:53:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-07-28 14:53:02,100 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2020-07-28 14:53:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 14:53:02,100 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-07-28 14:53:02,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 14:53:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-07-28 14:53:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 14:53:02,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:53:02,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:53:02,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 14:53:02,103 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:53:02,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:53:02,103 INFO L82 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2020-07-28 14:53:02,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:53:02,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206456526] [2020-07-28 14:53:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:53:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 14:53:02,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {113#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {113#true} is VALID [2020-07-28 14:53:02,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {113#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~post3, main_#t~mem6, 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; {113#true} is VALID [2020-07-28 14:53:02,229 INFO L280 TraceCheckUtils]: 2: Hoare triple {113#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; {115#(<= 1 ~N~0)} is VALID [2020-07-28 14:53:02,231 INFO L280 TraceCheckUtils]: 3: Hoare triple {115#(<= 1 ~N~0)} assume !(0 == assume_abort_if_not_~cond); {115#(<= 1 ~N~0)} is VALID [2020-07-28 14:53:02,232 INFO L280 TraceCheckUtils]: 4: Hoare triple {115#(<= 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;main_~i~0 := 0; {116#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-28 14:53:02,234 INFO L280 TraceCheckUtils]: 5: Hoare triple {116#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ~N~0))} assume !(main_~i~0 < ~N~0); {114#false} is VALID [2020-07-28 14:53:02,234 INFO L280 TraceCheckUtils]: 6: Hoare triple {114#false} main_~i~0 := 0; {114#false} is VALID [2020-07-28 14:53:02,235 INFO L280 TraceCheckUtils]: 7: Hoare triple {114#false} assume !(main_~i~0 < ~N~0); {114#false} is VALID [2020-07-28 14:53:02,235 INFO L280 TraceCheckUtils]: 8: Hoare triple {114#false} call main_#t~mem6 := read~int(main_~#sum~0.base, main_~#sum~0.offset, 8);__VERIFIER_assert_#in~cond := (if main_#t~mem6 > 2 * ~N~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {114#false} is VALID [2020-07-28 14:53:02,235 INFO L280 TraceCheckUtils]: 9: Hoare triple {114#false} assume 0 == __VERIFIER_assert_~cond; {114#false} is VALID [2020-07-28 14:53:02,236 INFO L280 TraceCheckUtils]: 10: Hoare triple {114#false} assume !false; {114#false} is VALID [2020-07-28 14:53:02,237 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 14:53:02,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206456526] [2020-07-28 14:53:02,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 14:53:02,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 14:53:02,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911505610] [2020-07-28 14:53:02,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 14:53:02,240 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 14:53:02,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 14:53:02,258 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:53:02,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 14:53:02,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 14:53:02,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 14:53:02,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 14:53:02,260 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2020-07-28 14:53:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:53:02,373 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2020-07-28 14:53:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 14:53:02,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 14:53:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 14:53:02,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 14:53:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 14:53:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 14:53:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 14:53:02,378 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 34 transitions. [2020-07-28 14:53:02,440 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 14:53:02,442 INFO L225 Difference]: With dead ends: 28 [2020-07-28 14:53:02,442 INFO L226 Difference]: Without dead ends: 20 [2020-07-28 14:53:02,443 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 14:53:02,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-28 14:53:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2020-07-28 14:53:02,454 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 14:53:02,454 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand 18 states. [2020-07-28 14:53:02,454 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 18 states. [2020-07-28 14:53:02,455 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 18 states. [2020-07-28 14:53:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:53:02,457 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-07-28 14:53:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-07-28 14:53:02,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:53:02,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:53:02,458 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 20 states. [2020-07-28 14:53:02,458 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 20 states. [2020-07-28 14:53:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 14:53:02,461 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-07-28 14:53:02,461 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-07-28 14:53:02,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 14:53:02,462 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 14:53:02,462 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 14:53:02,462 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 14:53:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 14:53:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-07-28 14:53:02,465 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2020-07-28 14:53:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 14:53:02,465 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-07-28 14:53:02,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 14:53:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-07-28 14:53:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 14:53:02,467 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 14:53:02,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 14:53:02,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 14:53:02,468 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 14:53:02,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 14:53:02,468 INFO L82 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2020-07-28 14:53:02,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 14:53:02,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953507683] [2020-07-28 14:53:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 14:53:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 14:53:02,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 14:53:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 14:53:02,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 14:53:02,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 14:53:02,579 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 14:53:02,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 14:53:02,623 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 14:53:02,623 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 14:53:02,623 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 14:53:02,628 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 14:53:02,629 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 14:53:02,629 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 14:53:02,629 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 14:53:02,629 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 14:53:02,629 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 14:53:02,629 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 14:53:02,630 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 14:53:02,630 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 14:53:02,630 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-28 14:53:02,630 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-28 14:53:02,632 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-28 14:53:02,632 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-28 14:53:02,633 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-28 14:53:02,633 WARN L170 areAnnotationChecker]: L34-4 has no Hoare annotation [2020-07-28 14:53:02,633 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 14:53:02,633 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 14:53:02,633 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 14:53:02,633 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-28 14:53:02,634 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-28 14:53:02,634 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 14:53:02,634 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-28 14:53:02,634 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-28 14:53:02,634 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 14:53:02,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 02:53:02 BoogieIcfgContainer [2020-07-28 14:53:02,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 14:53:02,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 14:53:02,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 14:53:02,641 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 14:53:02,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 02:53:01" (3/4) ... [2020-07-28 14:53:02,645 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 14:53:02,752 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 14:53:02,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 14:53:02,757 INFO L168 Benchmark]: Toolchain (without parser) took 2003.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -62.1 MB). Peak memory consumption was 76.3 MB. Max. memory is 11.5 GB. [2020-07-28 14:53:02,757 INFO L168 Benchmark]: CDTParser took 0.28 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 14:53:02,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 14:53:02,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 14:53:02,760 INFO L168 Benchmark]: Boogie Preprocessor took 32.96 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 14:53:02,766 INFO L168 Benchmark]: RCFGBuilder took 389.63 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2020-07-28 14:53:02,767 INFO L168 Benchmark]: TraceAbstraction took 1118.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.2 MB). Peak memory consumption was 79.2 MB. Max. memory is 11.5 GB. [2020-07-28 14:53:02,767 INFO L168 Benchmark]: Witness Printer took 112.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 14:53:02,779 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 0.28 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 245.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.96 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 389.63 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1118.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.2 MB). Peak memory consumption was 79.2 MB. Max. memory is 11.5 GB. * Witness Printer took 112.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 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] i=0 VAL [N=1] [L29] COND TRUE i