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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:26:44,751 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:26:44,753 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:26:44,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:26:44,773 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:26:44,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:26:44,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:26:44,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:26:44,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:26:44,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:26:44,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:26:44,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:26:44,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:26:44,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:26:44,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:26:44,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:26:44,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:26:44,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:26:44,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:26:44,796 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:26:44,797 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:26:44,799 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:26:44,801 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:26:44,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:26:44,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:26:44,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:26:44,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:26:44,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:26:44,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:26:44,806 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:26:44,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:26:44,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:26:44,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:26:44,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:26:44,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:26:44,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:26:44,810 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:26:44,839 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:26:44,839 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:26:44,840 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:26:44,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:26:44,840 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:26:44,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:26:44,843 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:26:44,844 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:26:44,844 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:26:44,844 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:26:44,844 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:26:44,844 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:26:44,845 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:26:44,845 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:26:44,846 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:26:44,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:26:44,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:26:44,847 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:26:44,847 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:26:44,847 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:26:44,847 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:26:44,849 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:26:44,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:26:44,850 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:26:44,850 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:26:44,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:26:44,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:26:44,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:26:44,851 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:26:44,851 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:26:44,851 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:26:44,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:26:44,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:26:44,852 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:26:44,852 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:26:44,852 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:26:44,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:26:44,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:26:44,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:26:44,924 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:26:44,924 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:26:44,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-11-07 08:26:44,984 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec6eabf0/5b28f69a8b1349a7aeb9eb68a6ed8632/FLAGb52f4c289 [2018-11-07 08:26:45,596 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:26:45,597 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-11-07 08:26:45,613 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec6eabf0/5b28f69a8b1349a7aeb9eb68a6ed8632/FLAGb52f4c289 [2018-11-07 08:26:45,629 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec6eabf0/5b28f69a8b1349a7aeb9eb68a6ed8632 [2018-11-07 08:26:45,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:26:45,642 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:26:45,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:26:45,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:26:45,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:26:45,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:26:45" (1/1) ... [2018-11-07 08:26:45,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6122243b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:45, skipping insertion in model container [2018-11-07 08:26:45,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:26:45" (1/1) ... [2018-11-07 08:26:45,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:26:45,735 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:26:46,307 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:26:46,314 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:26:46,582 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:26:46,612 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:26:46,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46 WrapperNode [2018-11-07 08:26:46,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:26:46,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:26:46,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:26:46,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:26:46,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:26:46,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:26:46,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:26:46,792 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:26:46,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (1/1) ... [2018-11-07 08:26:46,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:26:46,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:26:46,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:26:46,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:26:46,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (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 08:26:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:26:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:26:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:26:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:26:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:26:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:26:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:26:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:26:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:26:51,411 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:26:51,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:51 BoogieIcfgContainer [2018-11-07 08:26:51,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:26:51,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:26:51,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:26:51,417 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:26:51,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:26:45" (1/3) ... [2018-11-07 08:26:51,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760e583e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:51, skipping insertion in model container [2018-11-07 08:26:51,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:46" (2/3) ... [2018-11-07 08:26:51,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760e583e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:51, skipping insertion in model container [2018-11-07 08:26:51,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:51" (3/3) ... [2018-11-07 08:26:51,422 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label10_true-unreach-call.c [2018-11-07 08:26:51,433 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:26:51,443 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:26:51,462 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:26:51,505 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:26:51,505 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:26:51,505 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:26:51,505 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:26:51,505 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:26:51,506 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:26:51,506 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:26:51,506 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:26:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 08:26:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-07 08:26:51,544 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:26:51,546 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] [2018-11-07 08:26:51,548 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:26:51,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:26:51,555 INFO L82 PathProgramCache]: Analyzing trace with hash -250768471, now seen corresponding path program 1 times [2018-11-07 08:26:51,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:26:51,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:51,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:26:51,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:51,620 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:26:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:26:51,989 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 08:26:51,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:26:51,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:26:51,992 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:26:51,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:26:52,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:26:52,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:26:52,014 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 08:26:55,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:26:55,828 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-11-07 08:26:55,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:26:55,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-07 08:26:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:26:55,855 INFO L225 Difference]: With dead ends: 1001 [2018-11-07 08:26:55,855 INFO L226 Difference]: Without dead ends: 702 [2018-11-07 08:26:55,864 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 08:26:55,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-11-07 08:26:55,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-11-07 08:26:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-11-07 08:26:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-11-07 08:26:55,969 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 29 [2018-11-07 08:26:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:26:55,969 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-11-07 08:26:55,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:26:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-11-07 08:26:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 08:26:55,976 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:26:55,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:26:55,976 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:26:55,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:26:55,977 INFO L82 PathProgramCache]: Analyzing trace with hash -2105116581, now seen corresponding path program 1 times [2018-11-07 08:26:55,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:26:55,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:55,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:26:55,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:26:55,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:26:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:26:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:26:56,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:26:56,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:26:56,344 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:26:56,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:26:56,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:26:56,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:26:56,350 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-11-07 08:27:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:27:01,049 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-11-07 08:27:01,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:27:01,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-11-07 08:27:01,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:27:01,067 INFO L225 Difference]: With dead ends: 2534 [2018-11-07 08:27:01,067 INFO L226 Difference]: Without dead ends: 1841 [2018-11-07 08:27:01,074 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:27:01,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-11-07 08:27:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-11-07 08:27:01,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-11-07 08:27:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-11-07 08:27:01,186 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 102 [2018-11-07 08:27:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:27:01,186 INFO L480 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-11-07 08:27:01,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:27:01,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-11-07 08:27:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-07 08:27:01,189 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:27:01,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:01,190 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:27:01,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:01,190 INFO L82 PathProgramCache]: Analyzing trace with hash 367698756, now seen corresponding path program 1 times [2018-11-07 08:27:01,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:27:01,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:01,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:01,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:01,192 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:27:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:27:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:27:01,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:27:01,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:27:01,359 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:27:01,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:27:01,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:27:01,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:27:01,360 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-11-07 08:27:03,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:27:03,633 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-11-07 08:27:03,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:27:03,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-11-07 08:27:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:27:03,653 INFO L225 Difference]: With dead ends: 4796 [2018-11-07 08:27:03,654 INFO L226 Difference]: Without dead ends: 2987 [2018-11-07 08:27:03,666 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 08:27:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-11-07 08:27:03,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-11-07 08:27:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-11-07 08:27:03,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-11-07 08:27:03,772 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 103 [2018-11-07 08:27:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:27:03,773 INFO L480 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-11-07 08:27:03,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:27:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-11-07 08:27:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 08:27:03,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:27:03,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:03,783 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:27:03,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:03,783 INFO L82 PathProgramCache]: Analyzing trace with hash -537163217, now seen corresponding path program 1 times [2018-11-07 08:27:03,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:27:03,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:03,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:03,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:03,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:27:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:27:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:27:04,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:27:04,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:27:04,052 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:27:04,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:27:04,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:27:04,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:27:04,054 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-11-07 08:27:07,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:27:07,678 INFO L93 Difference]: Finished difference Result 11408 states and 20931 transitions. [2018-11-07 08:27:07,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 08:27:07,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 08:27:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:27:07,778 INFO L225 Difference]: With dead ends: 11408 [2018-11-07 08:27:07,779 INFO L226 Difference]: Without dead ends: 8444 [2018-11-07 08:27:07,863 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:27:07,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8444 states. [2018-11-07 08:27:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8444 to 7648. [2018-11-07 08:27:08,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7648 states. [2018-11-07 08:27:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7648 states to 7648 states and 11142 transitions. [2018-11-07 08:27:08,192 INFO L78 Accepts]: Start accepts. Automaton has 7648 states and 11142 transitions. Word has length 128 [2018-11-07 08:27:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:27:08,193 INFO L480 AbstractCegarLoop]: Abstraction has 7648 states and 11142 transitions. [2018-11-07 08:27:08,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:27:08,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7648 states and 11142 transitions. [2018-11-07 08:27:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-07 08:27:08,200 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:27:08,201 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, 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] [2018-11-07 08:27:08,201 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:27:08,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:08,201 INFO L82 PathProgramCache]: Analyzing trace with hash -388558922, now seen corresponding path program 1 times [2018-11-07 08:27:08,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:27:08,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:08,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:08,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:08,203 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:27:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:27:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:27:08,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:27:08,738 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:27:08,739 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-11-07 08:27:08,741 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:27:08,813 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:27:08,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:27:09,285 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:27:09,290 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 08:27:09,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:09,316 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:27:09,842 INFO L227 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 73.2% of their original sizes. [2018-11-07 08:27:09,843 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:27:10,079 INFO L415 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-11-07 08:27:10,080 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:27:10,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:27:10,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 08:27:10,081 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:27:10,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:27:10,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:27:10,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:27:10,083 INFO L87 Difference]: Start difference. First operand 7648 states and 11142 transitions. Second operand 6 states. [2018-11-07 08:27:59,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:27:59,144 INFO L93 Difference]: Finished difference Result 15482 states and 22497 transitions. [2018-11-07 08:27:59,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:27:59,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-11-07 08:27:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:27:59,200 INFO L225 Difference]: With dead ends: 15482 [2018-11-07 08:27:59,200 INFO L226 Difference]: Without dead ends: 7840 [2018-11-07 08:27:59,231 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:27:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2018-11-07 08:27:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 7838. [2018-11-07 08:27:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7838 states. [2018-11-07 08:27:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7838 states to 7838 states and 11343 transitions. [2018-11-07 08:27:59,492 INFO L78 Accepts]: Start accepts. Automaton has 7838 states and 11343 transitions. Word has length 176 [2018-11-07 08:27:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:27:59,493 INFO L480 AbstractCegarLoop]: Abstraction has 7838 states and 11343 transitions. [2018-11-07 08:27:59,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:27:59,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7838 states and 11343 transitions. [2018-11-07 08:27:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-07 08:27:59,500 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:27:59,501 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:59,501 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:27:59,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:27:59,502 INFO L82 PathProgramCache]: Analyzing trace with hash 987927268, now seen corresponding path program 1 times [2018-11-07 08:27:59,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:27:59,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:59,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:27:59,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:27:59,504 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:27:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:28:00,024 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:28:00,024 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:28:00,025 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-11-07 08:28:00,025 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [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 08:28:00,031 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:28:00,032 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:28:00,340 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:28:00,341 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 08:28:00,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:00,372 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:28:00,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:28:00,373 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 08:28:00,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:28:00,386 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:28:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:00,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:28:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:28:00,784 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:28:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:28:01,382 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:28:01,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 08:28:01,383 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:28:01,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 08:28:01,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 08:28:01,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:28:01,385 INFO L87 Difference]: Start difference. First operand 7838 states and 11343 transitions. Second operand 9 states. [2018-11-07 08:28:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:28:10,449 INFO L93 Difference]: Finished difference Result 21959 states and 42220 transitions. [2018-11-07 08:28:10,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 08:28:10,451 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 233 [2018-11-07 08:28:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:28:10,621 INFO L225 Difference]: With dead ends: 21959 [2018-11-07 08:28:10,622 INFO L226 Difference]: Without dead ends: 14317 [2018-11-07 08:28:10,868 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 469 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-11-07 08:28:10,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14317 states. [2018-11-07 08:28:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14317 to 14158. [2018-11-07 08:28:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14158 states. [2018-11-07 08:28:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14158 states to 14158 states and 24731 transitions. [2018-11-07 08:28:11,696 INFO L78 Accepts]: Start accepts. Automaton has 14158 states and 24731 transitions. Word has length 233 [2018-11-07 08:28:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:28:11,697 INFO L480 AbstractCegarLoop]: Abstraction has 14158 states and 24731 transitions. [2018-11-07 08:28:11,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 08:28:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 14158 states and 24731 transitions. [2018-11-07 08:28:11,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-11-07 08:28:11,708 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:28:11,709 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, 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, 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] [2018-11-07 08:28:11,709 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:28:11,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:11,709 INFO L82 PathProgramCache]: Analyzing trace with hash 877957787, now seen corresponding path program 1 times [2018-11-07 08:28:11,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:28:11,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:11,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:28:11,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:28:11,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:28:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:12,263 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 08:28:12,978 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-07 08:28:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-07 08:28:13,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:28:13,058 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:28:13,058 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-11-07 08:28:13,060 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [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], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:28:13,067 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:28:13,067 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:28:13,800 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:28:13,800 INFO L272 AbstractInterpreter]: Visited 136 different actions 402 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 08:28:13,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:28:13,835 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:28:13,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:28:13,836 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:28:13,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:28:13,855 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:28:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:28:13,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:28:15,027 WARN L179 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 20 [2018-11-07 08:28:15,370 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-07 08:28:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:28:15,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:28:16,168 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 08:28:16,322 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-11-07 08:28:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:28:17,654 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:28:17,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2018-11-07 08:28:17,655 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:28:17,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 08:28:17,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 08:28:17,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-11-07 08:28:17,657 INFO L87 Difference]: Start difference. First operand 14158 states and 24731 transitions. Second operand 15 states. [2018-11-07 08:28:21,291 WARN L179 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2018-11-07 08:28:22,742 WARN L179 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2018-11-07 08:28:24,030 WARN L179 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2018-11-07 08:28:25,802 WARN L179 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-11-07 08:28:28,402 WARN L179 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2018-11-07 08:28:29,599 WARN L179 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2018-11-07 08:28:31,365 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-11-07 08:28:36,523 WARN L179 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2018-11-07 08:28:38,159 WARN L179 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-11-07 08:28:45,489 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 27 [2018-11-07 08:28:47,235 WARN L179 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2018-11-07 08:28:50,818 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-11-07 08:28:52,283 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2018-11-07 08:28:53,329 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2018-11-07 08:28:54,842 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-11-07 08:29:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:05,393 INFO L93 Difference]: Finished difference Result 52124 states and 104496 transitions. [2018-11-07 08:29:05,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-11-07 08:29:05,394 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 251 [2018-11-07 08:29:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:05,638 INFO L225 Difference]: With dead ends: 52124 [2018-11-07 08:29:05,638 INFO L226 Difference]: Without dead ends: 37838 [2018-11-07 08:29:05,764 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 495 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9312 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=2748, Invalid=21432, Unknown=0, NotChecked=0, Total=24180 [2018-11-07 08:29:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37838 states. [2018-11-07 08:29:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37838 to 37509. [2018-11-07 08:29:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37509 states. [2018-11-07 08:29:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37509 states to 37509 states and 66669 transitions. [2018-11-07 08:29:07,423 INFO L78 Accepts]: Start accepts. Automaton has 37509 states and 66669 transitions. Word has length 251 [2018-11-07 08:29:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:07,424 INFO L480 AbstractCegarLoop]: Abstraction has 37509 states and 66669 transitions. [2018-11-07 08:29:07,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 08:29:07,424 INFO L276 IsEmpty]: Start isEmpty. Operand 37509 states and 66669 transitions. [2018-11-07 08:29:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-11-07 08:29:07,434 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:07,434 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, 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, 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 08:29:07,435 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:07,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:07,435 INFO L82 PathProgramCache]: Analyzing trace with hash 875315048, now seen corresponding path program 1 times [2018-11-07 08:29:07,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:07,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:07,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:07,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:07,438 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-07 08:29:08,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:08,583 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:29:08,584 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-11-07 08:29:08,584 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [574], [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 08:29:08,588 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:29:08,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:29:09,020 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:29:09,021 INFO L272 AbstractInterpreter]: Visited 141 different actions 558 times. Merged at 7 different actions 28 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:29:09,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:09,047 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:29:09,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:09,048 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:29:09,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:09,064 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:29:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:09,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:29:09,707 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 08:29:09,708 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:29:09,853 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 08:29:09,873 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:29:09,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-07 08:29:09,873 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:29:09,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 08:29:09,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 08:29:09,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-07 08:29:09,875 INFO L87 Difference]: Start difference. First operand 37509 states and 66669 transitions. Second operand 11 states. [2018-11-07 08:29:16,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:16,070 INFO L93 Difference]: Finished difference Result 93466 states and 193632 transitions. [2018-11-07 08:29:16,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 08:29:16,071 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 251 [2018-11-07 08:29:16,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:16,452 INFO L225 Difference]: With dead ends: 93466 [2018-11-07 08:29:16,452 INFO L226 Difference]: Without dead ends: 54628 [2018-11-07 08:29:16,742 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 504 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-11-07 08:29:16,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54628 states. [2018-11-07 08:29:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54628 to 52813. [2018-11-07 08:29:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52813 states. [2018-11-07 08:29:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52813 states to 52813 states and 87579 transitions. [2018-11-07 08:29:19,189 INFO L78 Accepts]: Start accepts. Automaton has 52813 states and 87579 transitions. Word has length 251 [2018-11-07 08:29:19,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:19,190 INFO L480 AbstractCegarLoop]: Abstraction has 52813 states and 87579 transitions. [2018-11-07 08:29:19,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 08:29:19,190 INFO L276 IsEmpty]: Start isEmpty. Operand 52813 states and 87579 transitions. [2018-11-07 08:29:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-11-07 08:29:19,198 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:19,198 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, 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, 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] [2018-11-07 08:29:19,199 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:19,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:19,199 INFO L82 PathProgramCache]: Analyzing trace with hash -458311476, now seen corresponding path program 1 times [2018-11-07 08:29:19,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:19,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:19,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:19,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:19,201 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 123 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:19,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:19,713 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:29:19,713 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-11-07 08:29:19,713 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [582], [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 08:29:19,717 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:29:19,718 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:29:20,110 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:29:20,110 INFO L272 AbstractInterpreter]: Visited 141 different actions 554 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:29:20,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:20,114 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:29:20,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:20,114 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:29:20,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:20,123 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:29:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:20,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:29:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 89 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:21,149 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:29:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 107 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:22,095 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:29:22,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 21 [2018-11-07 08:29:22,096 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:29:22,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 08:29:22,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 08:29:22,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2018-11-07 08:29:22,097 INFO L87 Difference]: Start difference. First operand 52813 states and 87579 transitions. Second operand 16 states. [2018-11-07 08:29:32,775 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2018-11-07 08:29:33,592 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-11-07 08:29:37,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:37,830 INFO L93 Difference]: Finished difference Result 117892 states and 218440 transitions. [2018-11-07 08:29:37,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-11-07 08:29:37,831 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 253 [2018-11-07 08:29:37,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:39,115 INFO L225 Difference]: With dead ends: 117892 [2018-11-07 08:29:39,116 INFO L226 Difference]: Without dead ends: 65465 [2018-11-07 08:29:39,470 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 506 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=759, Invalid=1997, Unknown=0, NotChecked=0, Total=2756 [2018-11-07 08:29:39,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65465 states. [2018-11-07 08:29:41,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65465 to 62727. [2018-11-07 08:29:41,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62727 states. [2018-11-07 08:29:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62727 states to 62727 states and 101595 transitions. [2018-11-07 08:29:42,072 INFO L78 Accepts]: Start accepts. Automaton has 62727 states and 101595 transitions. Word has length 253 [2018-11-07 08:29:42,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:42,072 INFO L480 AbstractCegarLoop]: Abstraction has 62727 states and 101595 transitions. [2018-11-07 08:29:42,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 08:29:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 62727 states and 101595 transitions. [2018-11-07 08:29:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-11-07 08:29:42,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:42,082 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, 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, 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] [2018-11-07 08:29:42,083 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:42,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:42,083 INFO L82 PathProgramCache]: Analyzing trace with hash 936880995, now seen corresponding path program 1 times [2018-11-07 08:29:42,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:42,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:42,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:42,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:42,084 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:43,050 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 08:29:43,344 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-07 08:29:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 51 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:43,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:43,498 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:29:43,498 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-11-07 08:29:43,498 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [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], [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 08:29:43,502 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:29:43,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:29:43,823 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:29:43,823 INFO L272 AbstractInterpreter]: Visited 141 different actions 418 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 08:29:43,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:43,861 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:29:43,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:43,861 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:29:43,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:43,875 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:29:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:43,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:29:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:44,400 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:29:45,442 WARN L179 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 08:29:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:45,744 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:29:45,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2018-11-07 08:29:45,745 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:29:45,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 08:29:45,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 08:29:45,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-07 08:29:45,747 INFO L87 Difference]: Start difference. First operand 62727 states and 101595 transitions. Second operand 16 states. [2018-11-07 08:30:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:30:01,527 INFO L93 Difference]: Finished difference Result 146273 states and 304938 transitions. [2018-11-07 08:30:01,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-11-07 08:30:01,528 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 256 [2018-11-07 08:30:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:30:02,749 INFO L225 Difference]: With dead ends: 146273 [2018-11-07 08:30:02,750 INFO L226 Difference]: Without dead ends: 83182 [2018-11-07 08:30:03,275 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 503 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=855, Invalid=3051, Unknown=0, NotChecked=0, Total=3906 [2018-11-07 08:30:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83182 states. [2018-11-07 08:30:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83182 to 77395. [2018-11-07 08:30:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77395 states. [2018-11-07 08:30:08,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77395 states to 77395 states and 134842 transitions. [2018-11-07 08:30:08,717 INFO L78 Accepts]: Start accepts. Automaton has 77395 states and 134842 transitions. Word has length 256 [2018-11-07 08:30:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:30:08,718 INFO L480 AbstractCegarLoop]: Abstraction has 77395 states and 134842 transitions. [2018-11-07 08:30:08,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 08:30:08,718 INFO L276 IsEmpty]: Start isEmpty. Operand 77395 states and 134842 transitions. [2018-11-07 08:30:08,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-11-07 08:30:08,727 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:30:08,727 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, 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, 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] [2018-11-07 08:30:08,727 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:30:08,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash -289913810, now seen corresponding path program 1 times [2018-11-07 08:30:08,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:30:08,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:08,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:08,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:08,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:30:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:09,086 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 08:30:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 2 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:30:09,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:09,881 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:30:09,881 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 273 with the following transitions: [2018-11-07 08:30:09,881 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [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], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:30:09,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:30:09,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:30:13,966 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:30:13,966 INFO L272 AbstractInterpreter]: Visited 157 different actions 468 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:30:14,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:14,006 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:30:14,006 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:14,007 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:30:14,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:14,022 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:30:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:14,125 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:30:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:30:14,354 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:30:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 45 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:30:15,057 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:30:15,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 26 [2018-11-07 08:30:15,058 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:30:15,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 08:30:15,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 08:30:15,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2018-11-07 08:30:15,060 INFO L87 Difference]: Start difference. First operand 77395 states and 134842 transitions. Second operand 21 states. Received shutdown request... [2018-11-07 08:30:20,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-07 08:30:20,220 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:30:20,226 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:30:20,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:30:20 BoogieIcfgContainer [2018-11-07 08:30:20,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:30:20,227 INFO L168 Benchmark]: Toolchain (without parser) took 214586.39 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 08:30:20,228 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 08:30:20,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:20,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -841.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:20,231 INFO L168 Benchmark]: Boogie Preprocessor took 145.70 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 08:30:20,231 INFO L168 Benchmark]: RCFGBuilder took 4474.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 174.1 MB). Peak memory consumption was 174.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:30:20,232 INFO L168 Benchmark]: TraceAbstraction took 208812.95 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -637.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 08:30:20,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 969.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 178.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -841.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.70 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4474.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 174.1 MB). Peak memory consumption was 174.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208812.95 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -637.9 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 72). Cancelled while BasicCegarLoop was constructing difference of abstraction (77395states) and FLOYD_HOARE automaton (currently 44 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (1159 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 208.7s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 168.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2239 SDtfs, 25466 SDslu, 4941 SDs, 0 SdLazy, 49849 SolverSat, 8596 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 109.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3600 GetRequests, 3195 SyntacticMatches, 16 SemanticMatches, 389 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12140 ImplicationChecksByTransitivity, 27.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77395occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.0s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9972915750915752 AbsIntWeakeningRatio, 0.16 AbsIntAvgWeakeningVarsNumRemoved, 17.982857142857142 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 13.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 11672 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 3570 NumberOfCodeBlocks, 3570 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5063 ConstructedInterpolants, 9 QuantifiedInterpolants, 10970623 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2754 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 1832/2591 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown