java -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/sum_array_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:38:15,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:38:15,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:38:15,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:38:15,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:38:15,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:38:15,809 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:38:15,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:38:15,814 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:38:15,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:38:15,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:38:15,816 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:38:15,817 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:38:15,818 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:38:15,821 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:38:15,821 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:38:15,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:38:15,829 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:38:15,831 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:38:15,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:38:15,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:38:15,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:38:15,844 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:38:15,844 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:38:15,844 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:38:15,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:38:15,846 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:38:15,847 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:38:15,848 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:38:15,849 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:38:15,849 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:38:15,850 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 22:38:15,850 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 22:38:15,850 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 22:38:15,851 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 22:38:15,852 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 22:38:15,852 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:38:15,874 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:38:15,875 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:38:15,875 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:38:15,879 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:38:15,880 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:38:15,880 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:38:15,880 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:38:15,880 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:38:15,881 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:38:15,882 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:38:15,882 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:38:15,882 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:38:15,882 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:38:15,882 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:38:15,883 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:38:15,883 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:38:15,883 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:38:15,883 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:38:15,883 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:38:15,884 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:38:15,885 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:38:15,885 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:38:15,885 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:38:15,885 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:38:15,885 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:38:15,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:38:15,886 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:38:15,886 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:38:15,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:38:15,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:38:15,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:38:15,949 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:38:15,950 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:38:15,950 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array_false-unreach-call.i [2018-11-06 22:38:16,007 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef80ed35/9a69becd2c2f4b6b9c453f89c8083e67/FLAG858a200dd [2018-11-06 22:38:16,433 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:38:16,434 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_false-unreach-call.i [2018-11-06 22:38:16,440 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef80ed35/9a69becd2c2f4b6b9c453f89c8083e67/FLAG858a200dd [2018-11-06 22:38:16,454 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ef80ed35/9a69becd2c2f4b6b9c453f89c8083e67 [2018-11-06 22:38:16,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:38:16,466 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:38:16,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:38:16,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:38:16,471 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:38:16,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a15b74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16, skipping insertion in model container [2018-11-06 22:38:16,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:38:16,512 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:38:16,773 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:38:16,781 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:38:16,815 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:38:16,837 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:38:16,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16 WrapperNode [2018-11-06 22:38:16,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:38:16,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:38:16,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:38:16,840 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:38:16,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:38:16,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:38:16,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:38:16,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:38:16,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (1/1) ... [2018-11-06 22:38:16,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:38:16,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:38:16,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:38:16,920 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:38:16,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (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 [2018-11-06 22:38:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-06 22:38:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-06 22:38:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:38:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:38:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-06 22:38:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-06 22:38:17,538 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:38:17,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:17 BoogieIcfgContainer [2018-11-06 22:38:17,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:38:17,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:38:17,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:38:17,544 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:38:17,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:38:16" (1/3) ... [2018-11-06 22:38:17,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3123ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:17, skipping insertion in model container [2018-11-06 22:38:17,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:16" (2/3) ... [2018-11-06 22:38:17,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3123ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:17, skipping insertion in model container [2018-11-06 22:38:17,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:17" (3/3) ... [2018-11-06 22:38:17,548 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_false-unreach-call.i [2018-11-06 22:38:17,558 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:38:17,573 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:38:17,592 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:38:17,628 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:38:17,628 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:38:17,628 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:38:17,629 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:38:17,629 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:38:17,629 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:38:17,629 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:38:17,629 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:38:17,629 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:38:17,645 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-11-06 22:38:17,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-06 22:38:17,652 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:38:17,654 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:38:17,656 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:38:17,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:38:17,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1077543020, now seen corresponding path program 1 times [2018-11-06 22:38:17,665 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:38:17,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:38:17,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:17,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:17,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:38:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:38:17,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:38:17,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:38:17,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:38:17,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:38:17,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:38:17,829 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-11-06 22:38:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:38:17,852 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2018-11-06 22:38:17,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:38:17,854 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-06 22:38:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:38:17,867 INFO L225 Difference]: With dead ends: 81 [2018-11-06 22:38:17,867 INFO L226 Difference]: Without dead ends: 37 [2018-11-06 22:38:17,871 INFO L604 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 [2018-11-06 22:38:17,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-06 22:38:17,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-06 22:38:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-06 22:38:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-11-06 22:38:17,912 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 20 [2018-11-06 22:38:17,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:38:17,913 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-11-06 22:38:17,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:38:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-11-06 22:38:17,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-06 22:38:17,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:38:17,914 INFO L375 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] [2018-11-06 22:38:17,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:38:17,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:38:17,915 INFO L82 PathProgramCache]: Analyzing trace with hash -935536917, now seen corresponding path program 1 times [2018-11-06 22:38:17,916 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:38:17,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:38:17,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:17,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:17,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:38:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:38:18,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:38:18,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:38:18,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:38:18,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:38:18,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:38:18,049 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 4 states. [2018-11-06 22:38:18,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:38:18,756 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2018-11-06 22:38:18,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:38:18,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-06 22:38:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:38:18,758 INFO L225 Difference]: With dead ends: 99 [2018-11-06 22:38:18,758 INFO L226 Difference]: Without dead ends: 65 [2018-11-06 22:38:18,760 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:38:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-06 22:38:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2018-11-06 22:38:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-06 22:38:18,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-11-06 22:38:18,768 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 23 [2018-11-06 22:38:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:38:18,768 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-11-06 22:38:18,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:38:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-11-06 22:38:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-06 22:38:18,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:38:18,770 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:38:18,770 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:38:18,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:38:18,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1425916964, now seen corresponding path program 1 times [2018-11-06 22:38:18,771 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:38:18,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:38:18,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:18,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:38:18,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:38:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-06 22:38:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-06 22:38:19,021 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-06 22:38:19,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:38:19 BoogieIcfgContainer [2018-11-06 22:38:19,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:38:19,093 INFO L168 Benchmark]: Toolchain (without parser) took 2627.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -713.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:19,096 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:38:19,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:19,100 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:38:19,101 INFO L168 Benchmark]: Boogie Preprocessor took 32.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:38:19,101 INFO L168 Benchmark]: RCFGBuilder took 619.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -764.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:19,103 INFO L168 Benchmark]: TraceAbstraction took 1551.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-11-06 22:38:19,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 619.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 732.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -764.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1551.77 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int M = __VERIFIER_nondet_uint(); [L15] FCALL int A[M], B[M], C[M]; [L16] unsigned int i; [L18] i=0 [L18] COND TRUE i