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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:20:24,492 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:20:24,497 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:20:24,511 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:20:24,511 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:20:24,512 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:20:24,513 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:20:24,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:20:24,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:20:24,520 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:20:24,523 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:20:24,523 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:20:24,524 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:20:24,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:20:24,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:20:24,528 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:20:24,529 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:20:24,530 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:20:24,532 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:20:24,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:20:24,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:20:24,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:20:24,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:20:24,539 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:20:24,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:20:24,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:20:24,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:20:24,542 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:20:24,543 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:20:24,544 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:20:24,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:20:24,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:20:24,546 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:20:24,546 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:20:24,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:20:24,548 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:20:24,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:20:24,575 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:20:24,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:20:24,580 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:20:24,580 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:20:24,580 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:20:24,580 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:20:24,581 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:20:24,581 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:20:24,581 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:20:24,581 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:20:24,581 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:20:24,582 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:20:24,582 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:20:24,583 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:20:24,583 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:20:24,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:20:24,583 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:20:24,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:20:24,584 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:20:24,584 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:20:24,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:20:24,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:20:24,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:20:24,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:20:24,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:20:24,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:20:24,585 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:20:24,585 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:20:24,586 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:20:24,586 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:20:24,586 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:20:24,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:20:24,586 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:20:24,587 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:20:24,587 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:20:24,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:20:24,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:20:24,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:20:24,661 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:20:24,661 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:20:24,662 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c [2018-11-07 20:20:24,730 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48a22ac5b/aa2f142ab2c84365af84c5d3e4ff8a1a/FLAG86043f387 [2018-11-07 20:20:25,558 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:20:25,559 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c [2018-11-07 20:20:25,592 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48a22ac5b/aa2f142ab2c84365af84c5d3e4ff8a1a/FLAG86043f387 [2018-11-07 20:20:25,612 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48a22ac5b/aa2f142ab2c84365af84c5d3e4ff8a1a [2018-11-07 20:20:25,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:20:25,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:20:25,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:20:25,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:20:25,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:20:25,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:20:25" (1/1) ... [2018-11-07 20:20:25,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673adebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:25, skipping insertion in model container [2018-11-07 20:20:25,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:20:25" (1/1) ... [2018-11-07 20:20:25,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:20:25,819 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:20:27,220 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:20:27,225 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:20:27,863 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:20:27,906 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:20:27,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27 WrapperNode [2018-11-07 20:20:27,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:20:27,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:20:27,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:20:27,909 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:20:27,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:20:28,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:20:28,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:20:28,264 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:20:28,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (1/1) ... [2018-11-07 20:20:28,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:20:28,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:20:28,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:20:28,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:20:28,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (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 20:20:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:20:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:20:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:20:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:20:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:20:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:20:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:20:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:20:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:20:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:20:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:20:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:20:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:20:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:20:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:20:37,808 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:20:37,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:20:37 BoogieIcfgContainer [2018-11-07 20:20:37,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:20:37,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:20:37,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:20:37,814 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:20:37,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:20:25" (1/3) ... [2018-11-07 20:20:37,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25019d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:20:37, skipping insertion in model container [2018-11-07 20:20:37,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:27" (2/3) ... [2018-11-07 20:20:37,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25019d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:20:37, skipping insertion in model container [2018-11-07 20:20:37,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:20:37" (3/3) ... [2018-11-07 20:20:37,818 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label32_true-unreach-call.c [2018-11-07 20:20:37,828 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:20:37,838 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:20:37,855 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:20:37,901 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:20:37,901 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:20:37,901 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:20:37,901 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:20:37,901 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:20:37,902 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:20:37,902 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:20:37,902 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:20:38,051 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 20:20:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-07 20:20:38,060 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:20:38,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:20:38,063 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:20:38,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:20:38,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1790779988, now seen corresponding path program 1 times [2018-11-07 20:20:38,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:20:38,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:38,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:20:38,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:38,138 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:20:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:20:38,627 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-07 20:20:38,653 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 20:20:38,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:20:38,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:20:38,657 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:20:38,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:20:38,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:20:38,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:20:38,715 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-11-07 20:20:50,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:20:50,582 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-11-07 20:20:50,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:20:50,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-11-07 20:20:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:20:50,640 INFO L225 Difference]: With dead ends: 3234 [2018-11-07 20:20:50,641 INFO L226 Difference]: Without dead ends: 2388 [2018-11-07 20:20:50,658 INFO L604 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 [2018-11-07 20:20:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-11-07 20:20:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-11-07 20:20:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-11-07 20:20:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-11-07 20:20:50,846 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 50 [2018-11-07 20:20:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:20:50,847 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-11-07 20:20:50,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:20:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-11-07 20:20:50,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-07 20:20:50,857 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:20:50,858 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, 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] [2018-11-07 20:20:50,858 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:20:50,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:20:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1628117594, now seen corresponding path program 1 times [2018-11-07 20:20:50,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:20:50,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:50,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:20:50,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:50,860 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:20:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:20:51,208 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:20:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:20:51,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:20:51,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:20:51,282 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:20:51,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:20:51,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:20:51,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:20:51,285 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-11-07 20:21:04,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:21:04,307 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-11-07 20:21:04,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:21:04,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-11-07 20:21:04,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:21:04,360 INFO L225 Difference]: With dead ends: 9453 [2018-11-07 20:21:04,360 INFO L226 Difference]: Without dead ends: 7071 [2018-11-07 20:21:04,374 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:21:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-11-07 20:21:04,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-11-07 20:21:04,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-11-07 20:21:04,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-11-07 20:21:04,611 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 150 [2018-11-07 20:21:04,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:21:04,612 INFO L480 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-11-07 20:21:04,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:21:04,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-11-07 20:21:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-07 20:21:04,627 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:21:04,628 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:04,628 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:21:04,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:04,628 INFO L82 PathProgramCache]: Analyzing trace with hash 395335138, now seen corresponding path program 1 times [2018-11-07 20:21:04,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:21:04,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:04,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:21:04,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:04,633 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:21:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:21:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 20:21:05,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:21:05,049 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:21:05,050 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-07 20:21:05,052 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2167], [2169], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:21:05,105 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:21:05,106 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:21:05,883 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:21:06,824 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:21:06,826 INFO L272 AbstractInterpreter]: Visited 157 different actions 308 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:21:06,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:06,874 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:21:07,896 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 78.56% of their original sizes. [2018-11-07 20:21:07,896 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:21:09,614 INFO L415 sIntCurrentIteration]: We unified 199 AI predicates to 199 [2018-11-07 20:21:09,614 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:21:09,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:21:09,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [4] total 24 [2018-11-07 20:21:09,615 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:21:09,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 20:21:09,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 20:21:09,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2018-11-07 20:21:09,617 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 22 states. [2018-11-07 20:23:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:23:35,949 INFO L93 Difference]: Finished difference Result 17748 states and 27019 transitions. [2018-11-07 20:23:35,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-07 20:23:35,949 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 200 [2018-11-07 20:23:35,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:23:35,996 INFO L225 Difference]: With dead ends: 17748 [2018-11-07 20:23:35,997 INFO L226 Difference]: Without dead ends: 10731 [2018-11-07 20:23:36,020 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=491, Invalid=2161, Unknown=0, NotChecked=0, Total=2652 [2018-11-07 20:23:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2018-11-07 20:23:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10651. [2018-11-07 20:23:36,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10651 states. [2018-11-07 20:23:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10651 states to 10651 states and 14344 transitions. [2018-11-07 20:23:36,315 INFO L78 Accepts]: Start accepts. Automaton has 10651 states and 14344 transitions. Word has length 200 [2018-11-07 20:23:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:23:36,316 INFO L480 AbstractCegarLoop]: Abstraction has 10651 states and 14344 transitions. [2018-11-07 20:23:36,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 20:23:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10651 states and 14344 transitions. [2018-11-07 20:23:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-11-07 20:23:36,326 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:23:36,327 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:36,327 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:23:36,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:36,328 INFO L82 PathProgramCache]: Analyzing trace with hash 697918864, now seen corresponding path program 1 times [2018-11-07 20:23:36,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:23:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:36,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:23:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:36,330 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:23:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:23:36,721 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:23:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 20:23:37,037 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:23:37,038 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:23:37,038 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-11-07 20:23:37,039 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2167], [2169], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2376], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:23:37,047 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:23:37,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:23:37,174 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:23:38,008 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:23:38,009 INFO L272 AbstractInterpreter]: Visited 154 different actions 302 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:23:38,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:38,014 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:23:38,520 INFO L227 lantSequenceWeakener]: Weakened 125 states. On average, predicates are now at 76.43% of their original sizes. [2018-11-07 20:23:38,521 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:23:39,042 INFO L415 sIntCurrentIteration]: We unified 269 AI predicates to 269 [2018-11-07 20:23:39,042 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:23:39,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:23:39,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-11-07 20:23:39,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:23:39,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 20:23:39,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 20:23:39,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:23:39,045 INFO L87 Difference]: Start difference. First operand 10651 states and 14344 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 20:23:59,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 20:23:59,302 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:23:59,309 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:23:59,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:23:59 BoogieIcfgContainer [2018-11-07 20:23:59,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:23:59,310 INFO L168 Benchmark]: Toolchain (without parser) took 213685.01 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 931.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:59,312 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:23:59,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2279.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:59,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 355.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:59,314 INFO L168 Benchmark]: Boogie Preprocessor took 222.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:59,315 INFO L168 Benchmark]: RCFGBuilder took 9322.18 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 663.4 MB). Peak memory consumption was 663.4 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:59,316 INFO L168 Benchmark]: TraceAbstraction took 201499.24 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.7 GB). Free memory was 1.6 GB in the beginning and 4.0 GB in the end (delta: -2.4 GB). Peak memory consumption was 306.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:59,321 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 2279.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 355.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 222.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9322.18 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 663.4 MB). Peak memory consumption was 663.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201499.24 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.7 GB). Free memory was 1.6 GB in the beginning and 4.0 GB in the end (delta: -2.4 GB). Peak memory consumption was 306.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (10651states) and FLOYD_HOARE automaton (currently 19 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (3133 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 201.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 191.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1455 SDtfs, 18006 SDslu, 1293 SDs, 0 SdLazy, 32001 SolverSat, 5703 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 528 GetRequests, 436 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10651occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9976264858330074 AbsIntWeakeningRatio, 0.10256410256410256 AbsIntAvgWeakeningVarsNumRemoved, 15.025641025641026 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 128 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 666 ConstructedInterpolants, 0 QuantifiedInterpolants, 452566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 205/246 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown