./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/sina5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/sina5f.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 d29356a0d85cd27fbd6689e83624859b3ccceafa ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 15:37:16,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:37:16,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:37:16,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:37:16,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:37:16,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:37:16,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:37:16,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:37:16,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:37:16,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:37:16,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:37:16,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:37:16,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:37:16,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:37:16,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:37:16,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:37:16,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:37:16,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:37:16,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:37:16,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:37:16,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:37:16,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:37:16,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:37:16,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:37:16,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:37:16,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:37:16,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:37:16,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:37:16,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:37:16,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:37:16,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:37:16,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:37:16,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:37:16,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:37:16,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:37:16,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:37:16,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:37:16,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:37:16,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:37:16,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:37:16,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:37:16,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:37:16,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:37:16,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:37:16,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:37:16,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:37:16,925 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:37:16,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:37:16,925 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:37:16,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:37:16,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:37:16,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:37:16,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:37:16,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:37:16,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:37:16,929 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:37:16,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:37:16,929 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:37:16,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:37:16,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:37:16,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:37:16,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:37:16,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:37:16,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:37:16,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:37:16,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:37:16,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:37:16,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:37:16,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:37:16,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:37:16,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:37:16,933 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 -> d29356a0d85cd27fbd6689e83624859b3ccceafa [2019-11-28 15:37:17,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:37:17,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:37:17,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:37:17,283 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:37:17,283 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:37:17,284 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina5f.c [2019-11-28 15:37:17,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea4fa5cc/f749a7af087e4dea8021c1ab7c47f08f/FLAGf2161bdcb [2019-11-28 15:37:17,803 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:37:17,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina5f.c [2019-11-28 15:37:17,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea4fa5cc/f749a7af087e4dea8021c1ab7c47f08f/FLAGf2161bdcb [2019-11-28 15:37:18,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea4fa5cc/f749a7af087e4dea8021c1ab7c47f08f [2019-11-28 15:37:18,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:37:18,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:37:18,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:18,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:37:18,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:37:18,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b8413c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18, skipping insertion in model container [2019-11-28 15:37:18,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:37:18,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:37:18,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:18,447 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:37:18,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:18,539 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:37:18,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18 WrapperNode [2019-11-28 15:37:18,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:18,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:18,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:37:18,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:37:18,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:18,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:37:18,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:37:18,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:37:18,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... [2019-11-28 15:37:18,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:37:18,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:37:18,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:37:18,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:37:18,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:37:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 15:37:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:37:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:37:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:37:18,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:37:18,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:37:18,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 15:37:19,055 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:37:19,055 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 15:37:19,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:19 BoogieIcfgContainer [2019-11-28 15:37:19,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:37:19,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:37:19,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:37:19,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:37:19,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:37:18" (1/3) ... [2019-11-28 15:37:19,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2996cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:19, skipping insertion in model container [2019-11-28 15:37:19,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:18" (2/3) ... [2019-11-28 15:37:19,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2996cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:19, skipping insertion in model container [2019-11-28 15:37:19,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:19" (3/3) ... [2019-11-28 15:37:19,064 INFO L109 eAbstractionObserver]: Analyzing ICFG sina5f.c [2019-11-28 15:37:19,072 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:37:19,079 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:37:19,090 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:37:19,111 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:37:19,111 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:37:19,111 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:37:19,111 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:37:19,111 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:37:19,111 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:37:19,112 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:37:19,112 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:37:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 15:37:19,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 15:37:19,133 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:19,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:19,137 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:19,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:19,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1942303561, now seen corresponding path program 1 times [2019-11-28 15:37:19,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:19,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437979669] [2019-11-28 15:37:19,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:37:19,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437979669] [2019-11-28 15:37:19,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:19,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:37:19,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294093498] [2019-11-28 15:37:19,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:37:19,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:19,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:37:19,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:19,322 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-28 15:37:19,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:19,347 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-28 15:37:19,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:37:19,349 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 15:37:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:19,361 INFO L225 Difference]: With dead ends: 51 [2019-11-28 15:37:19,362 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 15:37:19,365 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 15:37:19,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 15:37:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 15:37:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-28 15:37:19,410 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2019-11-28 15:37:19,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:19,411 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-28 15:37:19,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:37:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-28 15:37:19,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 15:37:19,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:19,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:19,414 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:19,415 INFO L82 PathProgramCache]: Analyzing trace with hash 2009888043, now seen corresponding path program 1 times [2019-11-28 15:37:19,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:19,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653036714] [2019-11-28 15:37:19,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:19,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:37:19,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653036714] [2019-11-28 15:37:19,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:19,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:37:19,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772002563] [2019-11-28 15:37:19,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:37:19,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:19,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:37:19,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:19,531 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-11-28 15:37:19,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:19,640 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-11-28 15:37:19,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:37:19,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-28 15:37:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:19,642 INFO L225 Difference]: With dead ends: 45 [2019-11-28 15:37:19,643 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 15:37:19,644 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 15:37:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-28 15:37:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 15:37:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-28 15:37:19,656 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2019-11-28 15:37:19,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:19,656 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-28 15:37:19,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:37:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-28 15:37:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 15:37:19,658 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:19,659 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:19,660 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:19,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:19,662 INFO L82 PathProgramCache]: Analyzing trace with hash 602672009, now seen corresponding path program 1 times [2019-11-28 15:37:19,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:19,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320714474] [2019-11-28 15:37:19,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 15:37:19,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320714474] [2019-11-28 15:37:19,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:19,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:37:19,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382473196] [2019-11-28 15:37:19,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:37:19,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:19,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:37:19,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:37:19,785 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-28 15:37:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:19,898 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2019-11-28 15:37:19,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:37:19,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-28 15:37:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:19,899 INFO L225 Difference]: With dead ends: 56 [2019-11-28 15:37:19,900 INFO L226 Difference]: Without dead ends: 40 [2019-11-28 15:37:19,900 INFO L630 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 [2019-11-28 15:37:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-28 15:37:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2019-11-28 15:37:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 15:37:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-28 15:37:19,914 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-28 15:37:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:19,914 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-28 15:37:19,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:37:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-28 15:37:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 15:37:19,916 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:19,916 INFO L410 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] [2019-11-28 15:37:19,917 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:19,917 INFO L82 PathProgramCache]: Analyzing trace with hash 126601089, now seen corresponding path program 1 times [2019-11-28 15:37:19,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:19,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644287978] [2019-11-28 15:37:19,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:20,125 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:37:20,126 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:37:20,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:37:20 BoogieIcfgContainer [2019-11-28 15:37:20,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:37:20,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:37:20,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:37:20,173 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:37:20,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:19" (3/4) ... [2019-11-28 15:37:20,176 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:37:20,241 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:37:20,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:37:20,245 INFO L168 Benchmark]: Toolchain (without parser) took 2036.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -39.6 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:20,246 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:20,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:20,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:20,248 INFO L168 Benchmark]: Boogie Preprocessor took 40.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:20,249 INFO L168 Benchmark]: RCFGBuilder took 425.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:20,249 INFO L168 Benchmark]: TraceAbstraction took 1114.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:20,250 INFO L168 Benchmark]: Witness Printer took 69.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:20,254 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 425.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1114.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. * Witness Printer took 69.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] long long *a = malloc(sizeof(long long)*N); [L25] long long *b = malloc(sizeof(long long)*N); [L27] sum[0] = 0 [L28] i=0 VAL [N=1] [L28] COND TRUE i