./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 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/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 0.1.24-30f4e4a [2019-11-27 22:32:47,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:32:47,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:32:47,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:32:47,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:32:47,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:32:48,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:32:48,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:32:48,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:32:48,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:32:48,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:32:48,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:32:48,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:32:48,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:32:48,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:32:48,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:32:48,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:32:48,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:32:48,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:32:48,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:32:48,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:32:48,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:32:48,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:32:48,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:32:48,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:32:48,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:32:48,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:32:48,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:32:48,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:32:48,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:32:48,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:32:48,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:32:48,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:32:48,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:32:48,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:32:48,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:32:48,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:32:48,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:32:48,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:32:48,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:32:48,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:32:48,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:32:48,105 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:32:48,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:32:48,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:32:48,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:32:48,109 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:32:48,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:32:48,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:32:48,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:32:48,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:32:48,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:32:48,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:32:48,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:32:48,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:32:48,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:32:48,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:32:48,111 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:32:48,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:32:48,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:32:48,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:32:48,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:32:48,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:32:48,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:32:48,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:32:48,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:32:48,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:32:48,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:32:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:32:48,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:32:48,119 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 [2019-11-27 22:32:48,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:32:48,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:32:48,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:32:48,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:32:48,439 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:32:48,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina5f.c [2019-11-27 22:32:48,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e7243d6/b531ba80fb3d4483a906cce773ffd41c/FLAGda05f662a [2019-11-27 22:32:48,936 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:32:48,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/sina5f.c [2019-11-27 22:32:48,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e7243d6/b531ba80fb3d4483a906cce773ffd41c/FLAGda05f662a [2019-11-27 22:32:49,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e7243d6/b531ba80fb3d4483a906cce773ffd41c [2019-11-27 22:32:49,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:32:49,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:32:49,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:32:49,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:32:49,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:32:49,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33519a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49, skipping insertion in model container [2019-11-27 22:32:49,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:32:49,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:32:49,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:32:49,617 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:32:49,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:32:49,726 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:32:49,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49 WrapperNode [2019-11-27 22:32:49,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:32:49,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:32:49,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:32:49,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:32:49,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:32:49,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:32:49,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:32:49,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:32:49,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (1/1) ... [2019-11-27 22:32:49,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:32:49,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:32:49,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:32:49,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:32:49,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (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 22:32:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 22:32:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 22:32:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 22:32:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:32:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:32:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 22:32:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 22:32:50,191 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:32:50,191 INFO L297 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-27 22:32:50,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:32:50 BoogieIcfgContainer [2019-11-27 22:32:50,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:32:50,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:32:50,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:32:50,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:32:50,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:32:49" (1/3) ... [2019-11-27 22:32:50,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24165d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:32:50, skipping insertion in model container [2019-11-27 22:32:50,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:32:49" (2/3) ... [2019-11-27 22:32:50,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24165d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:32:50, skipping insertion in model container [2019-11-27 22:32:50,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:32:50" (3/3) ... [2019-11-27 22:32:50,203 INFO L109 eAbstractionObserver]: Analyzing ICFG sina5f.c [2019-11-27 22:32:50,217 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:32:50,225 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:32:50,234 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:32:50,260 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:32:50,260 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:32:50,260 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:32:50,260 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:32:50,260 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:32:50,261 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:32:50,261 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:32:50,261 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:32:50,279 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-27 22:32:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 22:32:50,286 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:50,287 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:32:50,288 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:50,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:50,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1942303561, now seen corresponding path program 1 times [2019-11-27 22:32:50,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:50,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962887520] [2019-11-27 22:32:50,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:32:50,441 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 22:32:50,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962887520] [2019-11-27 22:32:50,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:32:50,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:32:50,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4771357] [2019-11-27 22:32:50,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 22:32:50,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:32:50,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 22:32:50,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:32:50,462 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-27 22:32:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:32:50,479 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-27 22:32:50,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 22:32:50,481 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-27 22:32:50,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:32:50,490 INFO L225 Difference]: With dead ends: 51 [2019-11-27 22:32:50,490 INFO L226 Difference]: Without dead ends: 24 [2019-11-27 22:32:50,493 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 22:32:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-27 22:32:50,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-27 22:32:50,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-27 22:32:50,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-27 22:32:50,524 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 16 [2019-11-27 22:32:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:32:50,525 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-27 22:32:50,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 22:32:50,525 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-27 22:32:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 22:32:50,526 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:50,526 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:32:50,527 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:50,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:50,527 INFO L82 PathProgramCache]: Analyzing trace with hash 2009888043, now seen corresponding path program 1 times [2019-11-27 22:32:50,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:50,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819352730] [2019-11-27 22:32:50,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:32:50,623 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 22:32:50,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819352730] [2019-11-27 22:32:50,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:32:50,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:32:50,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578510161] [2019-11-27 22:32:50,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:32:50,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:32:50,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:32:50,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:32:50,628 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-11-27 22:32:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:32:50,716 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-11-27 22:32:50,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:32:50,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-27 22:32:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:32:50,718 INFO L225 Difference]: With dead ends: 45 [2019-11-27 22:32:50,718 INFO L226 Difference]: Without dead ends: 26 [2019-11-27 22:32:50,719 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 22:32:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-27 22:32:50,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-27 22:32:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-27 22:32:50,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-27 22:32:50,725 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2019-11-27 22:32:50,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:32:50,725 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-27 22:32:50,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:32:50,726 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-27 22:32:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-27 22:32:50,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:50,727 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 22:32:50,727 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:50,727 INFO L82 PathProgramCache]: Analyzing trace with hash 602672009, now seen corresponding path program 1 times [2019-11-27 22:32:50,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:50,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382473196] [2019-11-27 22:32:50,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:32:50,820 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 22:32:50,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382473196] [2019-11-27 22:32:50,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:32:50,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:32:50,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130255048] [2019-11-27 22:32:50,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:32:50,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:32:50,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:32:50,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:32:50,824 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-27 22:32:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:32:50,943 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2019-11-27 22:32:50,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:32:50,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-27 22:32:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:32:50,945 INFO L225 Difference]: With dead ends: 56 [2019-11-27 22:32:50,945 INFO L226 Difference]: Without dead ends: 40 [2019-11-27 22:32:50,946 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 22:32:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-27 22:32:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2019-11-27 22:32:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-27 22:32:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-27 22:32:50,954 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-11-27 22:32:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:32:50,954 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-27 22:32:50,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:32:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-27 22:32:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-27 22:32:50,956 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:32:50,956 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] [2019-11-27 22:32:50,957 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:32:50,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:32:50,957 INFO L82 PathProgramCache]: Analyzing trace with hash 126601089, now seen corresponding path program 1 times [2019-11-27 22:32:50,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:32:50,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975252806] [2019-11-27 22:32:50,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:32:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:32:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:32:51,160 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:32:51,161 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:32:51,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:32:51 BoogieIcfgContainer [2019-11-27 22:32:51,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:32:51,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:32:51,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:32:51,207 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:32:51,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:32:50" (3/4) ... [2019-11-27 22:32:51,210 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:32:51,278 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:32:51,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:32:51,281 INFO L168 Benchmark]: Toolchain (without parser) took 1939.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -92.3 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:51,281 INFO L168 Benchmark]: CDTParser took 0.29 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 22:32:51,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:51,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.18 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 22:32:51,283 INFO L168 Benchmark]: Boogie Preprocessor took 32.70 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 22:32:51,284 INFO L168 Benchmark]: RCFGBuilder took 378.59 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:51,285 INFO L168 Benchmark]: TraceAbstraction took 1010.52 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:51,286 INFO L168 Benchmark]: Witness Printer took 71.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:32:51,290 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 385.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.18 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. * Boogie Preprocessor took 32.70 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 378.59 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1010.52 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * Witness Printer took 71.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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); [L25] long long *b = malloc(sizeof(long long)*N); [L27] sum[0] = 0 [L28] i=0 VAL [N=1] [L28] COND TRUE i