java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 03:15:17,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 03:15:17,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 03:15:17,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 03:15:17,877 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 03:15:17,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 03:15:17,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 03:15:17,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 03:15:17,883 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 03:15:17,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 03:15:17,884 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 03:15:17,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 03:15:17,886 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 03:15:17,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 03:15:17,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 03:15:17,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 03:15:17,890 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 03:15:17,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 03:15:17,894 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 03:15:17,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 03:15:17,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 03:15:17,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 03:15:17,900 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 03:15:17,906 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 03:15:17,907 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 03:15:17,908 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 03:15:17,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 03:15:17,909 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 03:15:17,925 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 03:15:17,925 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 03:15:17,926 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 03:15:17,927 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 03:15:17,927 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 03:15:17,927 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 03:15:17,927 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 03:15:17,927 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 03:15:17,928 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 03:15:17,928 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 03:15:17,928 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 03:15:17,928 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 03:15:17,929 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 03:15:17,929 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 03:15:17,929 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 03:15:17,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 03:15:17,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 03:15:17,930 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 03:15:17,930 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 03:15:17,930 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 03:15:17,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 03:15:17,931 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 03:15:17,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 03:15:17,931 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 03:15:17,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 03:15:17,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 03:15:17,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 03:15:17,932 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 03:15:17,932 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 03:15:17,932 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 03:15:17,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 03:15:17,933 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 03:15:17,933 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 03:15:17,933 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 03:15:17,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 03:15:18,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 03:15:18,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 03:15:18,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 03:15:18,026 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 03:15:18,027 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-11-07 03:15:18,097 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4a16075/32a8d8f6b87a4973a28212e0297319d9/FLAG2fd3cc912 [2018-11-07 03:15:18,919 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 03:15:18,920 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-11-07 03:15:18,957 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4a16075/32a8d8f6b87a4973a28212e0297319d9/FLAG2fd3cc912 [2018-11-07 03:15:18,973 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4a16075/32a8d8f6b87a4973a28212e0297319d9 [2018-11-07 03:15:18,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 03:15:18,989 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 03:15:18,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 03:15:18,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 03:15:18,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 03:15:18,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:15:18" (1/1) ... [2018-11-07 03:15:19,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465fd05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:19, skipping insertion in model container [2018-11-07 03:15:19,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:15:18" (1/1) ... [2018-11-07 03:15:19,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 03:15:19,220 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 03:15:20,683 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:15:20,689 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 03:15:21,452 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 03:15:21,495 INFO L193 MainTranslator]: Completed translation [2018-11-07 03:15:21,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21 WrapperNode [2018-11-07 03:15:21,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 03:15:21,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 03:15:21,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 03:15:21,498 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 03:15:21,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:21,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:21,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 03:15:21,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 03:15:21,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 03:15:21,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 03:15:21,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:21,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:21,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:21,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:22,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:22,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:22,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (1/1) ... [2018-11-07 03:15:22,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 03:15:22,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 03:15:22,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 03:15:22,227 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 03:15:22,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (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 03:15:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 03:15:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 03:15:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 03:15:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 03:15:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 03:15:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 03:15:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 03:15:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 03:15:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 03:15:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 03:15:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 03:15:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 03:15:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 03:15:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 03:15:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 03:15:31,740 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 03:15:31,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:15:31 BoogieIcfgContainer [2018-11-07 03:15:31,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 03:15:31,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 03:15:31,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 03:15:31,746 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 03:15:31,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:15:18" (1/3) ... [2018-11-07 03:15:31,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc41605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:15:31, skipping insertion in model container [2018-11-07 03:15:31,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:21" (2/3) ... [2018-11-07 03:15:31,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc41605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:15:31, skipping insertion in model container [2018-11-07 03:15:31,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:15:31" (3/3) ... [2018-11-07 03:15:31,750 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label09_true-unreach-call.c [2018-11-07 03:15:31,762 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 03:15:31,773 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 03:15:31,792 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 03:15:31,850 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 03:15:31,850 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 03:15:31,850 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 03:15:31,850 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 03:15:31,850 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 03:15:31,851 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 03:15:31,851 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 03:15:31,851 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 03:15:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 03:15:31,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-07 03:15:31,920 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:15:31,922 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 03:15:31,925 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:15:31,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:15:31,931 INFO L82 PathProgramCache]: Analyzing trace with hash 688094243, now seen corresponding path program 1 times [2018-11-07 03:15:31,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:15:31,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:15:31,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:15:31,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:15:31,986 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:15:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:15:32,479 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:15:32,665 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 03:15:32,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:15:32,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 03:15:32,671 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:15:32,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 03:15:32,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 03:15:32,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:15:32,699 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 03:15:40,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:15:40,373 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-11-07 03:15:40,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 03:15:40,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-11-07 03:15:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:15:40,414 INFO L225 Difference]: With dead ends: 3097 [2018-11-07 03:15:40,414 INFO L226 Difference]: Without dead ends: 1975 [2018-11-07 03:15:40,428 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 03:15:40,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-11-07 03:15:40,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-11-07 03:15:40,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-11-07 03:15:40,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-11-07 03:15:40,701 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 67 [2018-11-07 03:15:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:15:40,704 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-11-07 03:15:40,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 03:15:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-11-07 03:15:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 03:15:40,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:15:40,715 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:15:40,716 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:15:40,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:15:40,716 INFO L82 PathProgramCache]: Analyzing trace with hash 758431250, now seen corresponding path program 1 times [2018-11-07 03:15:40,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:15:40,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:15:40,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:15:40,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:15:40,718 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:15:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:15:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:15:41,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:15:41,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:15:41,031 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:15:41,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:15:41,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:15:41,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:15:41,034 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-11-07 03:15:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:15:54,908 INFO L93 Difference]: Finished difference Result 5733 states and 9688 transitions. [2018-11-07 03:15:54,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:15:54,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-11-07 03:15:54,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:15:54,934 INFO L225 Difference]: With dead ends: 5733 [2018-11-07 03:15:54,935 INFO L226 Difference]: Without dead ends: 3765 [2018-11-07 03:15:54,942 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:15:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2018-11-07 03:15:55,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3682. [2018-11-07 03:15:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3682 states. [2018-11-07 03:15:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 5656 transitions. [2018-11-07 03:15:55,070 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 5656 transitions. Word has length 143 [2018-11-07 03:15:55,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:15:55,070 INFO L480 AbstractCegarLoop]: Abstraction has 3682 states and 5656 transitions. [2018-11-07 03:15:55,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:15:55,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5656 transitions. [2018-11-07 03:15:55,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-07 03:15:55,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:15:55,084 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:15:55,084 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:15:55,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:15:55,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2052836206, now seen corresponding path program 1 times [2018-11-07 03:15:55,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:15:55,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:15:55,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:15:55,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:15:55,087 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:15:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:15:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:15:55,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:15:55,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 03:15:55,271 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:15:55,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 03:15:55,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 03:15:55,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 03:15:55,273 INFO L87 Difference]: Start difference. First operand 3682 states and 5656 transitions. Second operand 5 states. [2018-11-07 03:16:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:16:11,650 INFO L93 Difference]: Finished difference Result 13649 states and 21728 transitions. [2018-11-07 03:16:11,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 03:16:11,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-11-07 03:16:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:16:11,717 INFO L225 Difference]: With dead ends: 13649 [2018-11-07 03:16:11,718 INFO L226 Difference]: Without dead ends: 9973 [2018-11-07 03:16:11,746 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 03:16:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9973 states. [2018-11-07 03:16:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9973 to 9786. [2018-11-07 03:16:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2018-11-07 03:16:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 14482 transitions. [2018-11-07 03:16:12,020 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 14482 transitions. Word has length 157 [2018-11-07 03:16:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:16:12,021 INFO L480 AbstractCegarLoop]: Abstraction has 9786 states and 14482 transitions. [2018-11-07 03:16:12,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 03:16:12,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 14482 transitions. [2018-11-07 03:16:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-07 03:16:12,028 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:16:12,028 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 03:16:12,028 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:16:12,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:16:12,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2003299502, now seen corresponding path program 1 times [2018-11-07 03:16:12,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:16:12,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:16:12,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:16:12,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:16:12,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:16:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:16:12,333 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:16:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 03:16:12,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 03:16:12,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 03:16:12,527 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:16:12,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 03:16:12,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 03:16:12,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 03:16:12,528 INFO L87 Difference]: Start difference. First operand 9786 states and 14482 transitions. Second operand 6 states. [2018-11-07 03:16:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 03:16:24,801 INFO L93 Difference]: Finished difference Result 34080 states and 53558 transitions. [2018-11-07 03:16:24,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 03:16:24,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2018-11-07 03:16:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 03:16:24,934 INFO L225 Difference]: With dead ends: 34080 [2018-11-07 03:16:24,934 INFO L226 Difference]: Without dead ends: 24300 [2018-11-07 03:16:25,006 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 03:16:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24300 states. [2018-11-07 03:16:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24300 to 24072. [2018-11-07 03:16:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24072 states. [2018-11-07 03:16:25,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24072 states to 24072 states and 33884 transitions. [2018-11-07 03:16:25,579 INFO L78 Accepts]: Start accepts. Automaton has 24072 states and 33884 transitions. Word has length 175 [2018-11-07 03:16:25,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 03:16:25,580 INFO L480 AbstractCegarLoop]: Abstraction has 24072 states and 33884 transitions. [2018-11-07 03:16:25,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 03:16:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 24072 states and 33884 transitions. [2018-11-07 03:16:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-11-07 03:16:25,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 03:16:25,604 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:16:25,605 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 03:16:25,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:16:25,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1822344931, now seen corresponding path program 1 times [2018-11-07 03:16:25,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 03:16:25,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:16:25,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 03:16:25,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 03:16:25,607 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 03:16:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 03:16:25,872 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 03:16:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 120 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 03:16:26,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 03:16:26,206 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 03:16:26,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 282 with the following transitions: [2018-11-07 03:16:26,209 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3063], [3065], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3140], [3143], [3147], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3425], [3429], [3440], [3443], [3448], [3450], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 03:16:26,307 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 03:16:26,307 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 03:16:34,252 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 03:16:34,253 INFO L272 AbstractInterpreter]: Visited 140 different actions 140 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 03:16:34,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 03:16:34,265 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 03:16:40,165 INFO L227 lantSequenceWeakener]: Weakened 256 states. On average, predicates are now at 71.83% of their original sizes. [2018-11-07 03:16:40,165 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 03:16:42,168 INFO L415 sIntCurrentIteration]: We unified 280 AI predicates to 280 [2018-11-07 03:16:42,168 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 03:16:42,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 03:16:42,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-11-07 03:16:42,169 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 03:16:42,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-07 03:16:42,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-07 03:16:42,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-11-07 03:16:42,171 INFO L87 Difference]: Start difference. First operand 24072 states and 33884 transitions. Second operand 12 states. [2018-11-07 03:17:18,890 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 03:19:00,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 03:19:00,695 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 03:19:00,700 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 03:19:00,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:19:00 BoogieIcfgContainer [2018-11-07 03:19:00,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 03:19:00,702 INFO L168 Benchmark]: Toolchain (without parser) took 221713.78 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 278.9 MB. Max. memory is 7.1 GB. [2018-11-07 03:19:00,703 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 03:19:00,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2506.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:19:00,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 432.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-07 03:19:00,706 INFO L168 Benchmark]: Boogie Preprocessor took 296.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2018-11-07 03:19:00,707 INFO L168 Benchmark]: RCFGBuilder took 9514.53 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 196.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -43.8 MB). Peak memory consumption was 693.3 MB. Max. memory is 7.1 GB. [2018-11-07 03:19:00,708 INFO L168 Benchmark]: TraceAbstraction took 208958.18 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. [2018-11-07 03:19:00,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2506.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 432.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 786.4 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 296.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9514.53 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 196.6 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -43.8 MB). Peak memory consumption was 693.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208958.18 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (24072states) and FLOYD_HOARE automaton (currently 11 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (5724 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 208.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 189.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2258 SDtfs, 13805 SDslu, 2384 SDs, 0 SdLazy, 25586 SolverSat, 5675 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 142.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 318 GetRequests, 280 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24072occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9968241758241756 AbsIntWeakeningRatio, 0.11071428571428571 AbsIntAvgWeakeningVarsNumRemoved, 23.05 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 499 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 401846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 305/375 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown