java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:52:13,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:52:13,071 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:52:13,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:52:13,084 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:52:13,085 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:52:13,086 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:52:13,089 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:52:13,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:52:13,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:52:13,092 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:52:13,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:52:13,094 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:52:13,095 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:52:13,096 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:52:13,097 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:52:13,098 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:52:13,100 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:52:13,102 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:52:13,104 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:52:13,105 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:52:13,107 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:52:13,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:52:13,110 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:52:13,110 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:52:13,111 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:52:13,112 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:52:13,113 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:52:13,114 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:52:13,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:52:13,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:52:13,117 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:52:13,117 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:52:13,117 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:52:13,119 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:52:13,119 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:52:13,120 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:52:13,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:52:13,137 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:52:13,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:52:13,139 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:52:13,139 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:52:13,139 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:52:13,140 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:52:13,140 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:52:13,140 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:52:13,140 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:52:13,141 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:52:13,141 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:52:13,142 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:52:13,142 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:52:13,142 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:52:13,143 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:52:13,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:52:13,143 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:52:13,143 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:52:13,143 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:52:13,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:52:13,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:52:13,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:52:13,144 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:52:13,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:52:13,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:52:13,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:52:13,145 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:52:13,145 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:52:13,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:52:13,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:52:13,146 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:52:13,146 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:52:13,146 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:52:13,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:52:13,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:52:13,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:52:13,209 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:52:13,209 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:52:13,210 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label25_false-unreach-call.c [2018-10-24 18:52:13,271 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f2d31e83f/62b89c1a102e4457bc1b6c876805fef7/FLAG279115c13 [2018-10-24 18:52:14,008 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:52:14,009 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label25_false-unreach-call.c [2018-10-24 18:52:14,032 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f2d31e83f/62b89c1a102e4457bc1b6c876805fef7/FLAG279115c13 [2018-10-24 18:52:14,049 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f2d31e83f/62b89c1a102e4457bc1b6c876805fef7 [2018-10-24 18:52:14,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:52:14,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:52:14,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:52:14,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:52:14,068 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:52:14,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:14" (1/1) ... [2018-10-24 18:52:14,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a445e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:14, skipping insertion in model container [2018-10-24 18:52:14,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:14" (1/1) ... [2018-10-24 18:52:14,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:52:14,200 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:52:15,410 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:52:15,415 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:52:15,968 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:52:15,989 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:52:15,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15 WrapperNode [2018-10-24 18:52:15,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:52:15,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:52:15,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:52:15,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:52:16,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:52:16,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:52:16,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:52:16,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:52:16,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... [2018-10-24 18:52:16,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:52:16,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:52:16,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:52:16,832 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:52:16,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:52:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:52:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:52:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:52:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:52:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:52:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:52:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:52:16,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:52:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:52:16,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:52:29,737 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:52:29,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:29 BoogieIcfgContainer [2018-10-24 18:52:29,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:52:29,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:52:29,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:52:29,743 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:52:29,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:52:14" (1/3) ... [2018-10-24 18:52:29,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fea2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:52:29, skipping insertion in model container [2018-10-24 18:52:29,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15" (2/3) ... [2018-10-24 18:52:29,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fea2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:52:29, skipping insertion in model container [2018-10-24 18:52:29,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:29" (3/3) ... [2018-10-24 18:52:29,747 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label25_false-unreach-call.c [2018-10-24 18:52:29,757 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:52:29,768 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:52:29,786 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:52:29,829 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:52:29,829 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:52:29,829 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:52:29,829 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:52:29,829 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:52:29,830 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:52:29,830 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:52:29,830 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:52:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:52:29,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-24 18:52:29,881 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:52:29,882 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, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:52:29,888 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:52:29,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:52:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash 621618756, now seen corresponding path program 1 times [2018-10-24 18:52:29,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:52:29,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:52:29,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:52:29,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:52:29,944 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:52:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:52:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:52:30,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:52:30,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:52:30,395 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:52:30,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:52:30,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:52:30,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:52:30,423 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:52:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:52:44,392 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-10-24 18:52:44,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:52:44,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-10-24 18:52:44,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:52:44,423 INFO L225 Difference]: With dead ends: 2133 [2018-10-24 18:52:44,423 INFO L226 Difference]: Without dead ends: 1523 [2018-10-24 18:52:44,436 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:52:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-10-24 18:52:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-10-24 18:52:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-10-24 18:52:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-10-24 18:52:44,591 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 30 [2018-10-24 18:52:44,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:52:44,592 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-10-24 18:52:44,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:52:44,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-10-24 18:52:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 18:52:44,601 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:52:44,601 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2018-10-24 18:52:44,601 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:52:44,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:52:44,602 INFO L82 PathProgramCache]: Analyzing trace with hash -2146255078, now seen corresponding path program 1 times [2018-10-24 18:52:44,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:52:44,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:52:44,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:52:44,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:52:44,604 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:52:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:52:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:52:45,052 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:52:45,052 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:52:45,053 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2018-10-24 18:52:45,055 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [850], [852], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:52:45,122 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:52:45,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:52:46,637 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:53:06,466 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:53:06,468 INFO L272 AbstractInterpreter]: Visited 82 different actions 538 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:53:06,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:06,514 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:53:08,435 INFO L232 lantSequenceWeakener]: Weakened 33 states. On average, predicates are now at 78.29% of their original sizes. [2018-10-24 18:53:08,436 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:53:35,164 INFO L413 sIntCurrentIteration]: We have 104 unified AI predicates [2018-10-24 18:53:35,164 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:53:35,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:53:35,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [7] total 29 [2018-10-24 18:53:35,166 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:35,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-24 18:53:35,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-24 18:53:35,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2018-10-24 18:53:35,169 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 24 states. Received shutdown request... [2018-10-24 18:56:26,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 18:56:26,001 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:56:26,006 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:56:26,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:56:26 BoogieIcfgContainer [2018-10-24 18:56:26,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:56:26,008 INFO L168 Benchmark]: Toolchain (without parser) took 251946.32 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 18:56:26,009 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-24 18:56:26,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1926.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:26,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 460.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -923.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:26,012 INFO L168 Benchmark]: Boogie Preprocessor took 379.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:26,013 INFO L168 Benchmark]: RCFGBuilder took 12907.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 474.9 MB). Peak memory consumption was 474.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:26,014 INFO L168 Benchmark]: TraceAbstraction took 236267.12 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: -1.1 GB). Peak memory consumption was 800.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:26,019 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1926.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 460.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -923.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 379.47 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12907.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 474.9 MB). Peak memory consumption was 474.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236267.12 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.8 GB in the end (delta: -1.1 GB). Peak memory consumption was 800.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 77). Cancelled while BasicCegarLoop was constructing difference of abstraction (1516states) and FLOYD_HOARE automaton (currently 23 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (724 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 236.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 184.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 608 SDtfs, 2639 SDslu, 382 SDs, 0 SdLazy, 4094 SolverSat, 974 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 58.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 124 GetRequests, 79 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 38.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1516occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9914349112426036 AbsIntWeakeningRatio, 0.20192307692307693 AbsIntAvgWeakeningVarsNumRemoved, 807.0673076923077 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 48375 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown