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/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:56:48,522 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:56:48,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:56:48,543 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:56:48,543 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:56:48,544 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:56:48,546 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:56:48,547 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:56:48,549 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:56:48,550 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:56:48,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:56:48,551 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:56:48,552 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:56:48,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:56:48,554 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:56:48,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:56:48,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:56:48,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:56:48,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:56:48,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:56:48,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:56:48,564 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:56:48,567 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:56:48,567 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:56:48,567 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:56:48,568 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:56:48,569 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:56:48,570 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:56:48,571 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:56:48,572 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:56:48,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:56:48,573 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:56:48,573 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:56:48,573 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:56:48,574 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:56:48,575 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:56:48,575 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 02:56:48,599 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:56:48,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:56:48,600 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:56:48,600 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:56:48,600 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:56:48,603 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:56:48,604 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:56:48,604 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:56:48,604 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:56:48,604 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:56:48,604 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:56:48,605 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:56:48,606 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:56:48,606 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:56:48,606 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:56:48,606 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:56:48,606 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:56:48,608 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:56:48,608 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:56:48,608 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:56:48,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:56:48,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:56:48,609 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:56:48,609 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:56:48,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:56:48,609 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:56:48,610 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:56:48,610 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:56:48,610 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:56:48,610 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:56:48,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:56:48,611 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:56:48,611 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:56:48,611 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:56:48,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:56:48,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:56:48,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:56:48,676 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:56:48,677 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:56:48,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c [2018-11-07 02:56:48,747 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27fa2756/51683a04cb914e8487f6fa78d63cc7e3/FLAG4d4cc9939 [2018-11-07 02:56:49,418 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:56:49,421 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c [2018-11-07 02:56:49,444 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27fa2756/51683a04cb914e8487f6fa78d63cc7e3/FLAG4d4cc9939 [2018-11-07 02:56:49,465 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27fa2756/51683a04cb914e8487f6fa78d63cc7e3 [2018-11-07 02:56:49,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:56:49,480 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:56:49,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:56:49,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:56:49,490 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:56:49,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb93b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:49, skipping insertion in model container [2018-11-07 02:56:49,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:56:49" (1/1) ... [2018-11-07 02:56:49,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:56:49,583 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:56:50,339 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:56:50,344 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:56:50,579 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:56:50,600 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:56:50,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50 WrapperNode [2018-11-07 02:56:50,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:56:50,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:56:50,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:56:50,603 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:56:50,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:56:50,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:56:50,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:56:50,779 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:56:50,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (1/1) ... [2018-11-07 02:56:50,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:56:50,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:56:50,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:56:50,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:56:50,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (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 [2018-11-07 02:56:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:56:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:56:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:56:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:56:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:56:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:56:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:56:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:56:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:56:55,727 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:56:55,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:55 BoogieIcfgContainer [2018-11-07 02:56:55,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:56:55,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:56:55,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:56:55,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:56:55,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:56:49" (1/3) ... [2018-11-07 02:56:55,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc534b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:56:55, skipping insertion in model container [2018-11-07 02:56:55,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:56:50" (2/3) ... [2018-11-07 02:56:55,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc534b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:56:55, skipping insertion in model container [2018-11-07 02:56:55,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:56:55" (3/3) ... [2018-11-07 02:56:55,738 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label25_true-unreach-call.c [2018-11-07 02:56:55,749 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:56:55,758 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:56:55,776 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:56:55,817 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:56:55,818 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:56:55,818 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:56:55,818 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:56:55,818 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:56:55,818 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:56:55,818 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:56:55,819 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:56:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 02:56:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-07 02:56:55,858 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:56:55,860 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:56:55,862 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:56:55,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:56:55,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1384704100, now seen corresponding path program 1 times [2018-11-07 02:56:55,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:56:55,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:56:55,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:56:55,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:56:55,926 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:56:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:56:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:56:56,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:56:56,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:56:56,382 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:56:56,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:56:56,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:56:56,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:56:56,411 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 02:57:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:00,055 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-11-07 02:57:00,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:57:00,058 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-11-07 02:57:00,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:00,081 INFO L225 Difference]: With dead ends: 996 [2018-11-07 02:57:00,082 INFO L226 Difference]: Without dead ends: 697 [2018-11-07 02:57:00,093 INFO L604 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 [2018-11-07 02:57:00,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-11-07 02:57:00,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-11-07 02:57:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-11-07 02:57:00,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-11-07 02:57:00,195 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 38 [2018-11-07 02:57:00,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:00,196 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-11-07 02:57:00,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:57:00,196 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-11-07 02:57:00,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-07 02:57:00,203 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:00,203 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, 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] [2018-11-07 02:57:00,203 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:00,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:00,205 INFO L82 PathProgramCache]: Analyzing trace with hash -331878893, now seen corresponding path program 1 times [2018-11-07 02:57:00,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:00,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:00,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:00,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:00,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:57:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:57:00,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:57:00,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:57:00,584 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:57:00,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:57:00,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:57:00,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:57:00,587 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-11-07 02:57:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:04,272 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-11-07 02:57:04,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:57:04,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-11-07 02:57:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:04,284 INFO L225 Difference]: With dead ends: 1725 [2018-11-07 02:57:04,285 INFO L226 Difference]: Without dead ends: 1250 [2018-11-07 02:57:04,290 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 02:57:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-11-07 02:57:04,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-11-07 02:57:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-11-07 02:57:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-11-07 02:57:04,376 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 111 [2018-11-07 02:57:04,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:04,377 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-11-07 02:57:04,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:57:04,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-11-07 02:57:04,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-07 02:57:04,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:04,391 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, 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] [2018-11-07 02:57:04,391 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:04,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:04,391 INFO L82 PathProgramCache]: Analyzing trace with hash -689587928, now seen corresponding path program 1 times [2018-11-07 02:57:04,392 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:04,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:04,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:04,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:04,395 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:57:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:57:04,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:57:04,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:57:04,628 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:57:04,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:57:04,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:57:04,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:57:04,630 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 4 states. [2018-11-07 02:57:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:07,261 INFO L93 Difference]: Finished difference Result 3240 states and 4918 transitions. [2018-11-07 02:57:07,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:57:07,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-11-07 02:57:07,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:07,284 INFO L225 Difference]: With dead ends: 3240 [2018-11-07 02:57:07,284 INFO L226 Difference]: Without dead ends: 2015 [2018-11-07 02:57:07,296 INFO L604 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 [2018-11-07 02:57:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2018-11-07 02:57:07,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 2000. [2018-11-07 02:57:07,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2000 states. [2018-11-07 02:57:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2897 transitions. [2018-11-07 02:57:07,368 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2897 transitions. Word has length 112 [2018-11-07 02:57:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:07,368 INFO L480 AbstractCegarLoop]: Abstraction has 2000 states and 2897 transitions. [2018-11-07 02:57:07,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:57:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2897 transitions. [2018-11-07 02:57:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-07 02:57:07,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:07,375 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:57:07,376 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:07,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:07,376 INFO L82 PathProgramCache]: Analyzing trace with hash -2107878529, now seen corresponding path program 1 times [2018-11-07 02:57:07,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:07,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:07,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:07,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:07,381 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:57:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:57:07,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:57:07,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:57:07,907 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:57:07,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:57:07,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:57:07,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:57:07,908 INFO L87 Difference]: Start difference. First operand 2000 states and 2897 transitions. Second operand 6 states. [2018-11-07 02:57:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:11,559 INFO L93 Difference]: Finished difference Result 7663 states and 13278 transitions. [2018-11-07 02:57:11,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 02:57:11,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-11-07 02:57:11,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:11,625 INFO L225 Difference]: With dead ends: 7663 [2018-11-07 02:57:11,626 INFO L226 Difference]: Without dead ends: 5669 [2018-11-07 02:57:11,685 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 02:57:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2018-11-07 02:57:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5142. [2018-11-07 02:57:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5142 states. [2018-11-07 02:57:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 7306 transitions. [2018-11-07 02:57:11,900 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 7306 transitions. Word has length 137 [2018-11-07 02:57:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:11,900 INFO L480 AbstractCegarLoop]: Abstraction has 5142 states and 7306 transitions. [2018-11-07 02:57:11,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:57:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 7306 transitions. [2018-11-07 02:57:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-11-07 02:57:11,909 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:11,912 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 02:57:11,912 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:11,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:11,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1631754857, now seen corresponding path program 1 times [2018-11-07 02:57:11,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:11,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:11,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:11,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:11,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:57:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:57:12,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:57:12,466 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:57:12,467 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-11-07 02:57:12,475 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [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], [495], [499], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:57:12,589 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:57:12,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:57:14,457 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:57:14,459 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 02:57:14,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:14,468 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:57:16,930 INFO L227 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 73.49% of their original sizes. [2018-11-07 02:57:16,930 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:57:17,415 INFO L415 sIntCurrentIteration]: We unified 184 AI predicates to 184 [2018-11-07 02:57:17,416 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:57:17,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:57:17,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 02:57:17,417 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:57:17,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 02:57:17,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 02:57:17,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 02:57:17,418 INFO L87 Difference]: Start difference. First operand 5142 states and 7306 transitions. Second operand 7 states. [2018-11-07 02:57:20,071 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:57:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:57:59,532 INFO L93 Difference]: Finished difference Result 10470 states and 14824 transitions. [2018-11-07 02:57:59,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:57:59,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2018-11-07 02:57:59,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:57:59,563 INFO L225 Difference]: With dead ends: 10470 [2018-11-07 02:57:59,564 INFO L226 Difference]: Without dead ends: 5334 [2018-11-07 02:57:59,592 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 02:57:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2018-11-07 02:57:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2018-11-07 02:57:59,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5332 states. [2018-11-07 02:57:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 7506 transitions. [2018-11-07 02:57:59,743 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 7506 transitions. Word has length 185 [2018-11-07 02:57:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:57:59,743 INFO L480 AbstractCegarLoop]: Abstraction has 5332 states and 7506 transitions. [2018-11-07 02:57:59,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 02:57:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 7506 transitions. [2018-11-07 02:57:59,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-07 02:57:59,751 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:57:59,752 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:57:59,752 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:57:59,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:57:59,753 INFO L82 PathProgramCache]: Analyzing trace with hash -826417273, now seen corresponding path program 1 times [2018-11-07 02:57:59,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:57:59,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:59,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:57:59,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:57:59,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:57:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:58:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:58:00,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:58:00,286 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:58:00,286 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-11-07 02:58:00,287 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [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], [495], [499], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:58:00,304 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:58:00,304 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:58:03,476 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:58:18,445 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 02:58:18,446 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 02:58:18,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:58:18,455 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 02:58:18,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:58:18,455 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 02:58:18,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:58:18,469 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 02:58:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:58:18,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 02:58:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:58:18,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 02:58:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:58:19,385 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 02:58:19,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 02:58:19,385 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 02:58:19,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 02:58:19,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 02:58:19,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 02:58:19,387 INFO L87 Difference]: Start difference. First operand 5332 states and 7506 transitions. Second operand 9 states. [2018-11-07 02:58:27,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:58:27,017 INFO L93 Difference]: Finished difference Result 14924 states and 27149 transitions. [2018-11-07 02:58:27,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 02:58:27,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 242 [2018-11-07 02:58:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:58:27,113 INFO L225 Difference]: With dead ends: 14924 [2018-11-07 02:58:27,113 INFO L226 Difference]: Without dead ends: 9788 [2018-11-07 02:58:27,226 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 487 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-11-07 02:58:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9788 states. [2018-11-07 02:58:27,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9788 to 9676. [2018-11-07 02:58:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9676 states. [2018-11-07 02:58:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9676 states to 9676 states and 16174 transitions. [2018-11-07 02:58:27,774 INFO L78 Accepts]: Start accepts. Automaton has 9676 states and 16174 transitions. Word has length 242 [2018-11-07 02:58:27,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:58:27,775 INFO L480 AbstractCegarLoop]: Abstraction has 9676 states and 16174 transitions. [2018-11-07 02:58:27,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 02:58:27,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9676 states and 16174 transitions. [2018-11-07 02:58:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-11-07 02:58:27,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:58:27,788 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 02:58:27,788 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:58:27,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:58:27,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1119037538, now seen corresponding path program 1 times [2018-11-07 02:58:27,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:58:27,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:58:27,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:58:27,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:58:27,790 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:58:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:58:28,493 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 02:58:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-07 02:58:28,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:58:28,898 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:58:28,898 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-11-07 02:58:28,898 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:58:28,907 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:58:28,908 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:58:31,371 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:58:47,728 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:58:47,728 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 02:58:47,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:58:47,741 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:58:52,959 INFO L227 lantSequenceWeakener]: Weakened 35 states. On average, predicates are now at 76.67% of their original sizes. [2018-11-07 02:58:52,960 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:59:05,891 INFO L415 sIntCurrentIteration]: We unified 249 AI predicates to 249 [2018-11-07 02:59:05,891 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:59:05,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:59:05,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2018-11-07 02:59:05,892 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:59:05,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 02:59:05,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 02:59:05,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-11-07 02:59:05,893 INFO L87 Difference]: Start difference. First operand 9676 states and 16174 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 03:00:40,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 03:00:40,464 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:00:40,469 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:00:40,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:00:40 BoogieIcfgContainer [2018-11-07 03:00:40,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:00:40,471 INFO L168 Benchmark]: Toolchain (without parser) took 230993.16 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -264.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,472 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-07 03:00:40,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1120.74 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 176.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 705.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -803.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,475 INFO L168 Benchmark]: Boogie Preprocessor took 142.90 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:00:40,475 INFO L168 Benchmark]: RCFGBuilder took 4806.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 173.4 MB). Peak memory consumption was 173.4 MB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,476 INFO L168 Benchmark]: TraceAbstraction took 224740.48 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 312.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-07 03:00:40,482 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1120.74 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 176.01 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 705.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -803.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.90 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4806.30 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 173.4 MB). Peak memory consumption was 173.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224740.48 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 312.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 99). Cancelled while BasicCegarLoop was constructing difference of abstraction (9676states) and FLOYD_HOARE automaton (currently 15 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (264 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 224.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 158.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1439 SDtfs, 5870 SDslu, 1483 SDs, 0 SdLazy, 11847 SolverSat, 2437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 982 GetRequests, 912 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9676occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.0s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.995344404120386 AbsIntWeakeningRatio, 0.12933025404157045 AbsIntAvgWeakeningVarsNumRemoved, 535.8729792147806 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 891 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1317 NumberOfCodeBlocks, 1317 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1550 ConstructedInterpolants, 0 QuantifiedInterpolants, 955185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 713/786 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown