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-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 11:38:49,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 11:38:49,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 11:38:49,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 11:38:49,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 11:38:49,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 11:38:49,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 11:38:49,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 11:38:49,822 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 11:38:49,823 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 11:38:49,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 11:38:49,825 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 11:38:49,826 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 11:38:49,827 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 11:38:49,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 11:38:49,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 11:38:49,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 11:38:49,832 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 11:38:49,834 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 11:38:49,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 11:38:49,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 11:38:49,838 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 11:38:49,841 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 11:38:49,841 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 11:38:49,842 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 11:38:49,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 11:38:49,844 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 11:38:49,845 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 11:38:49,846 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 11:38:49,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 11:38:49,847 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 11:38:49,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 11:38:49,848 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 11:38:49,849 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 11:38:49,850 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 11:38:49,851 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 11:38:49,851 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 11:38:49,868 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 11:38:49,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 11:38:49,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 11:38:49,869 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 11:38:49,870 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 11:38:49,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 11:38:49,870 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 11:38:49,870 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 11:38:49,871 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 11:38:49,871 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 11:38:49,871 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 11:38:49,871 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 11:38:49,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 11:38:49,872 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 11:38:49,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 11:38:49,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 11:38:49,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 11:38:49,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 11:38:49,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 11:38:49,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 11:38:49,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 11:38:49,874 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 11:38:49,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 11:38:49,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 11:38:49,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:38:49,875 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 11:38:49,875 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 11:38:49,875 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 11:38:49,875 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 11:38:49,875 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 11:38:49,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 11:38:49,876 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 11:38:49,876 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 11:38:49,876 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 11:38:49,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 11:38:49,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 11:38:49,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 11:38:49,965 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 11:38:49,965 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 11:38:49,966 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-10-27 11:38:50,045 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34e1b5947/af90966306d44955a54e4a61e340addf/FLAGc14c34645 [2018-10-27 11:38:50,712 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 11:38:50,714 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-10-27 11:38:50,741 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34e1b5947/af90966306d44955a54e4a61e340addf/FLAGc14c34645 [2018-10-27 11:38:50,761 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/34e1b5947/af90966306d44955a54e4a61e340addf [2018-10-27 11:38:50,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 11:38:50,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 11:38:50,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 11:38:50,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 11:38:50,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 11:38:50,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:38:50" (1/1) ... [2018-10-27 11:38:50,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a508f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:50, skipping insertion in model container [2018-10-27 11:38:50,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:38:50" (1/1) ... [2018-10-27 11:38:50,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 11:38:50,895 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 11:38:51,757 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:38:51,761 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 11:38:52,067 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:38:52,089 INFO L193 MainTranslator]: Completed translation [2018-10-27 11:38:52,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52 WrapperNode [2018-10-27 11:38:52,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 11:38:52,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 11:38:52,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 11:38:52,092 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 11:38:52,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 11:38:52,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 11:38:52,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 11:38:52,508 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 11:38:52,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (1/1) ... [2018-10-27 11:38:52,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 11:38:52,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 11:38:52,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 11:38:52,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 11:38:52,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (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 [2018-10-27 11:38:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 11:38:52,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 11:38:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 11:38:52,817 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 11:38:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 11:38:52,817 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 11:38:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 11:38:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 11:38:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 11:38:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 11:39:00,314 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 11:39:00,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:39:00 BoogieIcfgContainer [2018-10-27 11:39:00,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 11:39:00,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 11:39:00,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 11:39:00,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 11:39:00,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:38:50" (1/3) ... [2018-10-27 11:39:00,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2f79bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:39:00, skipping insertion in model container [2018-10-27 11:39:00,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:38:52" (2/3) ... [2018-10-27 11:39:00,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2f79bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:39:00, skipping insertion in model container [2018-10-27 11:39:00,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:39:00" (3/3) ... [2018-10-27 11:39:00,325 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label14_false-unreach-call.c [2018-10-27 11:39:00,335 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 11:39:00,344 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 11:39:00,362 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 11:39:00,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 11:39:00,405 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 11:39:00,405 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 11:39:00,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 11:39:00,405 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 11:39:00,405 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 11:39:00,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 11:39:00,406 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 11:39:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 11:39:00,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 11:39:00,454 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:39:00,456 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] [2018-10-27 11:39:00,458 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:39:00,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:39:00,465 INFO L82 PathProgramCache]: Analyzing trace with hash 250004580, now seen corresponding path program 1 times [2018-10-27 11:39:00,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:39:00,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:39:00,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:39:00,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:39:00,526 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:39:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:39:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:39:00,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:39:00,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:39:00,922 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:39:00,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:39:00,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:39:00,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:39:00,950 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 11:39:09,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:39:09,960 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-10-27 11:39:09,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:39:09,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-10-27 11:39:09,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:39:09,995 INFO L225 Difference]: With dead ends: 1514 [2018-10-27 11:39:09,996 INFO L226 Difference]: Without dead ends: 1070 [2018-10-27 11:39:10,008 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:39:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-10-27 11:39:10,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-10-27 11:39:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-27 11:39:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-10-27 11:39:10,191 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 22 [2018-10-27 11:39:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:39:10,192 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-10-27 11:39:10,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:39:10,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-10-27 11:39:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-27 11:39:10,199 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:39:10,201 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-10-27 11:39:10,201 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:39:10,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:39:10,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1633554799, now seen corresponding path program 1 times [2018-10-27 11:39:10,203 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:39:10,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:39:10,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:39:10,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:39:10,205 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:39:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:39:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:39:10,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:39:10,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:39:10,455 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:39:10,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:39:10,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:39:10,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:39:10,458 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-10-27 11:39:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:39:17,472 INFO L93 Difference]: Finished difference Result 3986 states and 6446 transitions. [2018-10-27 11:39:17,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:39:17,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-10-27 11:39:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:39:17,503 INFO L225 Difference]: With dead ends: 3986 [2018-10-27 11:39:17,503 INFO L226 Difference]: Without dead ends: 2924 [2018-10-27 11:39:17,513 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:39:17,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2018-10-27 11:39:17,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2922. [2018-10-27 11:39:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-10-27 11:39:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4197 transitions. [2018-10-27 11:39:17,630 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4197 transitions. Word has length 92 [2018-10-27 11:39:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:39:17,631 INFO L481 AbstractCegarLoop]: Abstraction has 2922 states and 4197 transitions. [2018-10-27 11:39:17,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:39:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4197 transitions. [2018-10-27 11:39:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-27 11:39:17,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:39:17,659 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 11:39:17,659 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:39:17,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:39:17,659 INFO L82 PathProgramCache]: Analyzing trace with hash 264602961, now seen corresponding path program 1 times [2018-10-27 11:39:17,662 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:39:17,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:39:17,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:39:17,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:39:17,663 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:39:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:39:18,259 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 53 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-27 11:39:18,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 11:39:18,260 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 11:39:18,261 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-10-27 11:39:18,263 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 11:39:18,313 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 11:39:18,313 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 11:39:18,786 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 11:39:22,843 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 11:39:22,845 INFO L272 AbstractInterpreter]: Visited 105 different actions 699 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 24 variables. [2018-10-27 11:39:22,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:39:22,881 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 11:39:24,645 INFO L227 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 78.2% of their original sizes. [2018-10-27 11:39:24,645 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 11:39:28,851 INFO L415 sIntCurrentIteration]: We unified 278 AI predicates to 278 [2018-10-27 11:39:28,852 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 11:39:28,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 11:39:28,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-10-27 11:39:28,854 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:39:28,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-27 11:39:28,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-27 11:39:28,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2018-10-27 11:39:28,857 INFO L87 Difference]: Start difference. First operand 2922 states and 4197 transitions. Second operand 18 states. Received shutdown request... [2018-10-27 11:43:07,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-27 11:43:07,795 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 11:43:07,801 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 11:43:07,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 11:43:07 BoogieIcfgContainer [2018-10-27 11:43:07,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 11:43:07,803 INFO L168 Benchmark]: Toolchain (without parser) took 257026.88 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 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 408.0 MB. Max. memory is 7.1 GB. [2018-10-27 11:43:07,805 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-27 11:43:07,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1312.33 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-27 11:43:07,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 415.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -873.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-27 11:43:07,807 INFO L168 Benchmark]: Boogie Preprocessor took 234.04 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-27 11:43:07,808 INFO L168 Benchmark]: RCFGBuilder took 7574.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 317.0 MB). Peak memory consumption was 317.0 MB. Max. memory is 7.1 GB. [2018-10-27 11:43:07,809 INFO L168 Benchmark]: TraceAbstraction took 247484.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.7 GB in the end (delta: -1.8 GB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2018-10-27 11:43:07,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1312.33 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 415.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -873.2 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 234.04 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7574.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 317.0 MB). Peak memory consumption was 317.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247484.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.7 GB in the end (delta: -1.8 GB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (2922states) and FLOYD_HOARE automaton (currently 21 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (2993 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 247.4s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 235.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 631 SDtfs, 5772 SDslu, 358 SDs, 0 SdLazy, 5908 SolverSat, 1432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 214.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 302 GetRequests, 188 SyntacticMatches, 81 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2922occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9963668929339872 AbsIntWeakeningRatio, 0.11510791366906475 AbsIntAvgWeakeningVarsNumRemoved, 4.255395683453237 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 393 NumberOfCodeBlocks, 393 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 319576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 79/301 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown