./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/sina2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab 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/sina2f.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 cb638bf27c8a2a5db8aa9072fa7cfee53c323708 .................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 22:32:33,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:32:33,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:32:33,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:32:33,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:32:33,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:32:33,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:32:33,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:32:33,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:32:33,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:32:33,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:32:33,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:32:33,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:32:33,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:32:33,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:32:33,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:32:33,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:32:33,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:32:33,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:32:33,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:32:33,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:32:33,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:32:33,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:32:33,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:32:33,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:32:33,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:32:33,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:32:33,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:32:33,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:32:33,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:32:33,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:32:33,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:32:33,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:32:33,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:32:33,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:32:33,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:32:33,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:32:33,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:32:33,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:32:33,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:32:33,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:32:33,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:32:33,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:32:33,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:32:33,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:32:33,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:32:33,607 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:32:33,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:32:33,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:32:33,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:32:33,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:32:33,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:32:33,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:32:33,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:32:33,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:32:33,611 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:32:33,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:32:33,611 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:32:33,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:32:33,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:32:33,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:32:33,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:32:33,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:32:33,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:32:33,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:32:33,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:32:33,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:32:33,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:32:33,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:32:33,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:32:33,615 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 -> cb638bf27c8a2a5db8aa9072fa7cfee53c323708 [2019-11-27 22:32:33,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:32:33,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:32:33,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:32:33,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:32:33,937 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:32:33,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina2f.c [2019-11-27 22:32:34,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3213dfc/4814b2f3a87b40e19d942ccafe14cb0a/FLAG7edcd2e40 [2019-11-27 22:32:34,468 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:32:34,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina2f.c [2019-11-27 22:32:34,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3213dfc/4814b2f3a87b40e19d942ccafe14cb0a/FLAG7edcd2e40 [2019-11-27 22:32:34,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b3213dfc/4814b2f3a87b40e19d942ccafe14cb0a [2019-11-27 22:32:34,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:32:34,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:32:34,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:32:34,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:32:34,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:32:34,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:32:34" (1/1) ... [2019-11-27 22:32:34,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245e5474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:34, skipping insertion in model container [2019-11-27 22:32:34,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:32:34" (1/1) ... [2019-11-27 22:32:34,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:32:34,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:32:35,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:32:35,155 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:32:35,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:32:35,198 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:32:35,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35 WrapperNode [2019-11-27 22:32:35,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:32:35,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:32:35,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:32:35,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:32:35,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:32:35,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:32:35,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:32:35,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:32:35,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (1/1) ... [2019-11-27 22:32:35,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:32:35,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:32:35,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:32:35,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:32:35,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (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 [2019-11-27 22:32:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 22:32:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 22:32:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 22:32:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:32:35,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:32:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 22:32:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 22:32:35,743 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:32:35,743 INFO L297 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-27 22:32:35,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:32:35 BoogieIcfgContainer [2019-11-27 22:32:35,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:32:35,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:32:35,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:32:35,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:32:35,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:32:34" (1/3) ... [2019-11-27 22:32:35,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2252fa34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:32:35, skipping insertion in model container [2019-11-27 22:32:35,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:35" (2/3) ... [2019-11-27 22:32:35,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2252fa34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:32:35, skipping insertion in model container [2019-11-27 22:32:35,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:32:35" (3/3) ... [2019-11-27 22:32:35,763 INFO L109 eAbstractionObserver]: Analyzing ICFG sina2f.c [2019-11-27 22:32:35,777 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:32:35,784 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:32:35,812 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:32:35,833 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:32:35,833 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:32:35,833 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:32:35,834 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:32:35,834 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:32:35,834 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:32:35,834 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:32:35,834 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:32:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-27 22:32:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 22:32:35,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:35,856 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:32:35,856 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:35,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:35,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1553700779, now seen corresponding path program 1 times [2019-11-27 22:32:35,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:35,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68328183] [2019-11-27 22:32:35,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:32:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:32:36,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68328183] [2019-11-27 22:32:36,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:32:36,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:32:36,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712161874] [2019-11-27 22:32:36,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 22:32:36,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:32:36,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 22:32:36,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:32:36,072 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-27 22:32:36,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:32:36,087 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-27 22:32:36,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 22:32:36,088 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-27 22:32:36,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:32:36,096 INFO L225 Difference]: With dead ends: 39 [2019-11-27 22:32:36,096 INFO L226 Difference]: Without dead ends: 18 [2019-11-27 22:32:36,100 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 [2019-11-27 22:32:36,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-27 22:32:36,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-27 22:32:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-27 22:32:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-27 22:32:36,129 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-11-27 22:32:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:32:36,129 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-27 22:32:36,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 22:32:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-27 22:32:36,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 22:32:36,130 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:36,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:32:36,131 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:36,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:36,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1516529121, now seen corresponding path program 1 times [2019-11-27 22:32:36,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:36,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194540029] [2019-11-27 22:32:36,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:32:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:32:36,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194540029] [2019-11-27 22:32:36,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:32:36,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:32:36,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59302280] [2019-11-27 22:32:36,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:32:36,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:32:36,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:32:36,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:32:36,217 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2019-11-27 22:32:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:32:36,300 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-27 22:32:36,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:32:36,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-27 22:32:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:32:36,301 INFO L225 Difference]: With dead ends: 33 [2019-11-27 22:32:36,301 INFO L226 Difference]: Without dead ends: 20 [2019-11-27 22:32:36,302 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 [2019-11-27 22:32:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-27 22:32:36,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-27 22:32:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 22:32:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-27 22:32:36,308 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2019-11-27 22:32:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:32:36,308 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-27 22:32:36,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:32:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-27 22:32:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 22:32:36,309 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:36,309 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:32:36,310 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:36,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1045499773, now seen corresponding path program 1 times [2019-11-27 22:32:36,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:36,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439860834] [2019-11-27 22:32:36,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:32:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-27 22:32:36,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439860834] [2019-11-27 22:32:36,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:32:36,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:32:36,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253246024] [2019-11-27 22:32:36,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:32:36,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:32:36,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:32:36,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:32:36,390 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-11-27 22:32:36,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:32:36,455 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2019-11-27 22:32:36,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:32:36,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-27 22:32:36,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:32:36,457 INFO L225 Difference]: With dead ends: 40 [2019-11-27 22:32:36,457 INFO L226 Difference]: Without dead ends: 30 [2019-11-27 22:32:36,458 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 [2019-11-27 22:32:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-27 22:32:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2019-11-27 22:32:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-27 22:32:36,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-27 22:32:36,465 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2019-11-27 22:32:36,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:32:36,467 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-27 22:32:36,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:32:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-27 22:32:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-27 22:32:36,470 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:36,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:32:36,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:36,472 INFO L82 PathProgramCache]: Analyzing trace with hash 392653561, now seen corresponding path program 1 times [2019-11-27 22:32:36,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:36,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112109567] [2019-11-27 22:32:36,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:32:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:32:36,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:32:36,612 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:32:36,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:32:36 BoogieIcfgContainer [2019-11-27 22:32:36,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:32:36,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:32:36,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:32:36,649 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:32:36,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:32:35" (3/4) ... [2019-11-27 22:32:36,652 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:32:36,729 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:32:36,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:32:36,732 INFO L168 Benchmark]: Toolchain (without parser) took 1903.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -104.3 MB). Peak memory consumption was 41.5 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:36,732 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:32:36,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.40 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:36,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:36,734 INFO L168 Benchmark]: Boogie Preprocessor took 26.28 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. [2019-11-27 22:32:36,735 INFO L168 Benchmark]: RCFGBuilder took 404.60 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:36,735 INFO L168 Benchmark]: TraceAbstraction took 900.96 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:36,736 INFO L168 Benchmark]: Witness Printer took 80.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:36,740 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 371.40 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 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 114.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.28 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 404.60 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 900.96 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * Witness Printer took 80.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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); [L26] sum[0] = 1 [L27] i=0 VAL [N=1] [L27] COND TRUE i