java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:23:54,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:23:54,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:23:54,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:23:54,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:23:54,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:23:54,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:23:54,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:23:54,866 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:23:54,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:23:54,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:23:54,868 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:23:54,869 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:23:54,870 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:23:54,871 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:23:54,872 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:23:54,873 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:23:54,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:23:54,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:23:54,878 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:23:54,879 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:23:54,880 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:23:54,883 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:23:54,891 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:23:54,912 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:23:54,913 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:23:54,913 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:23:54,914 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:23:54,914 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:23:54,914 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:23:54,914 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:23:54,914 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:23:54,915 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:23:54,915 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:23:54,915 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:23:54,915 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:23:54,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:23:54,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:23:54,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:23:54,916 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:23:54,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:23:54,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:23:54,917 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:23:54,917 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:23:54,917 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:23:54,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:23:54,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:23:54,918 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:23:54,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:23:54,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:23:54,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:23:54,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:23:54,919 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:23:54,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:23:54,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:23:54,920 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:23:54,920 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:23:54,920 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:23:54,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:23:54,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:23:54,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:23:54,995 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:23:54,995 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:23:54,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label59_true-unreach-call.c [2018-10-24 22:23:55,066 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1fe69beb4/9e84f5abb5b5415fab2572fb98e002da/FLAGc40ac6ef9 [2018-10-24 22:23:55,740 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:23:55,741 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label59_true-unreach-call.c [2018-10-24 22:23:55,765 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1fe69beb4/9e84f5abb5b5415fab2572fb98e002da/FLAGc40ac6ef9 [2018-10-24 22:23:55,781 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1fe69beb4/9e84f5abb5b5415fab2572fb98e002da [2018-10-24 22:23:55,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:23:55,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:23:55,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:23:55,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:23:55,800 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:23:55,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:55" (1/1) ... [2018-10-24 22:23:55,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0d1884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:55, skipping insertion in model container [2018-10-24 22:23:55,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:55" (1/1) ... [2018-10-24 22:23:55,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:23:55,957 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:23:57,082 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:23:57,086 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:23:57,696 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:23:57,728 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:23:57,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57 WrapperNode [2018-10-24 22:23:57,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:23:57,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:23:57,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:23:57,731 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:23:57,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:57,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:23:58,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:23:58,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:23:58,190 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:23:58,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... [2018-10-24 22:23:58,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:23:58,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:23:58,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:23:58,409 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:23:58,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:23:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:23:58,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:23:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:23:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:23:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:23:58,485 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:23:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:23:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:23:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:23:58,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:23:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:23:58,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:24:06,168 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:24:06,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:06 BoogieIcfgContainer [2018-10-24 22:24:06,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:24:06,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:24:06,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:24:06,175 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:24:06,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:23:55" (1/3) ... [2018-10-24 22:24:06,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c45a318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:24:06, skipping insertion in model container [2018-10-24 22:24:06,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:57" (2/3) ... [2018-10-24 22:24:06,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c45a318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:24:06, skipping insertion in model container [2018-10-24 22:24:06,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:06" (3/3) ... [2018-10-24 22:24:06,179 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label59_true-unreach-call.c [2018-10-24 22:24:06,189 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:24:06,199 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:24:06,218 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:24:06,265 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:24:06,265 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:24:06,266 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:24:06,266 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:24:06,266 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:24:06,266 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:24:06,266 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:24:06,266 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:24:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 22:24:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-24 22:24:06,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:24:06,316 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] [2018-10-24 22:24:06,318 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:24:06,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:06,324 INFO L82 PathProgramCache]: Analyzing trace with hash 520991260, now seen corresponding path program 1 times [2018-10-24 22:24:06,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:24:06,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:06,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:24:06,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:06,371 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:24:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:24:06,779 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:24:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:24:06,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:24:06,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:24:06,902 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:24:06,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:24:06,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:24:06,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:24:06,930 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 22:24:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:24:13,659 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 22:24:13,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:24:13,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-10-24 22:24:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:24:13,695 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 22:24:13,696 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 22:24:13,707 INFO L605 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 [2018-10-24 22:24:13,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 22:24:13,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 22:24:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 22:24:13,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-24 22:24:13,883 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 44 [2018-10-24 22:24:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:24:13,884 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-24 22:24:13,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:24:13,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-24 22:24:13,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 22:24:13,891 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:24:13,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:24:13,892 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:24:13,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:13,892 INFO L82 PathProgramCache]: Analyzing trace with hash 312836970, now seen corresponding path program 1 times [2018-10-24 22:24:13,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:24:13,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:13,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:24:13,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:13,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:24:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:24:14,262 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:24:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:24:14,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:24:14,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:24:14,467 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:24:14,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:24:14,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:24:14,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:24:14,470 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-24 22:24:22,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:24:22,846 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-24 22:24:22,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:24:22,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-10-24 22:24:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:24:22,881 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 22:24:22,881 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 22:24:22,886 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:24:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 22:24:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-24 22:24:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-24 22:24:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-24 22:24:22,976 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 114 [2018-10-24 22:24:22,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:24:22,977 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-24 22:24:22,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:24:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-24 22:24:22,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 22:24:22,981 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:24:22,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:24:22,981 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:24:22,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:22,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2035714247, now seen corresponding path program 1 times [2018-10-24 22:24:22,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:24:22,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:22,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:24:22,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:22,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:24:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:24:23,197 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:24:23,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:24:23,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:24:23,198 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:24:23,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:24:23,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:24:23,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:24:23,199 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-24 22:24:28,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:24:28,684 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-24 22:24:28,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:24:28,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2018-10-24 22:24:28,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:24:28,713 INFO L225 Difference]: With dead ends: 7345 [2018-10-24 22:24:28,713 INFO L226 Difference]: Without dead ends: 4426 [2018-10-24 22:24:28,723 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:24:28,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-24 22:24:28,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-24 22:24:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-24 22:24:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-24 22:24:28,883 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 115 [2018-10-24 22:24:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:24:28,883 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-24 22:24:28,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:24:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-24 22:24:28,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 22:24:28,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:24:28,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:24:28,888 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:24:28,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:28,894 INFO L82 PathProgramCache]: Analyzing trace with hash 930788643, now seen corresponding path program 1 times [2018-10-24 22:24:28,894 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:24:28,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:28,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:24:28,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:28,896 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:24:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:24:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:24:29,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:24:29,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:24:29,078 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:24:29,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:24:29,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:24:29,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:24:29,079 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-24 22:24:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:24:44,850 INFO L93 Difference]: Finished difference Result 14820 states and 21982 transitions. [2018-10-24 22:24:44,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 22:24:44,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2018-10-24 22:24:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:24:44,897 INFO L225 Difference]: With dead ends: 14820 [2018-10-24 22:24:44,897 INFO L226 Difference]: Without dead ends: 10435 [2018-10-24 22:24:44,920 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:24:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2018-10-24 22:24:45,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 10283. [2018-10-24 22:24:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10283 states. [2018-10-24 22:24:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 13623 transitions. [2018-10-24 22:24:45,223 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 13623 transitions. Word has length 117 [2018-10-24 22:24:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:24:45,223 INFO L481 AbstractCegarLoop]: Abstraction has 10283 states and 13623 transitions. [2018-10-24 22:24:45,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:24:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 13623 transitions. [2018-10-24 22:24:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 22:24:45,226 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:24:45,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:24:45,226 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:24:45,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:45,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1545723122, now seen corresponding path program 1 times [2018-10-24 22:24:45,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:24:45,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:45,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:24:45,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:45,228 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:24:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:24:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:24:45,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:24:45,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:24:45,408 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:24:45,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:24:45,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:24:45,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:24:45,411 INFO L87 Difference]: Start difference. First operand 10283 states and 13623 transitions. Second operand 3 states. [2018-10-24 22:24:50,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:24:50,571 INFO L93 Difference]: Finished difference Result 29769 states and 40235 transitions. [2018-10-24 22:24:50,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:24:50,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2018-10-24 22:24:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:24:50,669 INFO L225 Difference]: With dead ends: 29769 [2018-10-24 22:24:50,669 INFO L226 Difference]: Without dead ends: 19492 [2018-10-24 22:24:50,720 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:24:50,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2018-10-24 22:24:51,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 19484. [2018-10-24 22:24:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19484 states. [2018-10-24 22:24:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19484 states to 19484 states and 23730 transitions. [2018-10-24 22:24:51,440 INFO L78 Accepts]: Start accepts. Automaton has 19484 states and 23730 transitions. Word has length 142 [2018-10-24 22:24:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:24:51,441 INFO L481 AbstractCegarLoop]: Abstraction has 19484 states and 23730 transitions. [2018-10-24 22:24:51,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:24:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 19484 states and 23730 transitions. [2018-10-24 22:24:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-24 22:24:51,451 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:24:51,452 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 22:24:51,452 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:24:51,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:51,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1067446861, now seen corresponding path program 1 times [2018-10-24 22:24:51,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:24:51,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:51,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:24:51,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:24:51,455 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:24:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:24:51,888 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-24 22:24:52,264 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 22:24:52,468 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-10-24 22:24:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:24:52,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:24:52,596 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:24:52,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-10-24 22:24:52,600 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1875], [1877], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:24:52,681 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:24:52,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:24:55,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:24:55,300 INFO L272 AbstractInterpreter]: Visited 112 different actions 112 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 22:24:55,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:24:55,317 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:24:57,254 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 77.92% of their original sizes. [2018-10-24 22:24:57,255 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:24:57,664 INFO L413 sIntCurrentIteration]: We have 220 unified AI predicates [2018-10-24 22:24:57,664 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:24:57,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:24:57,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-24 22:24:57,666 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:24:57,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:24:57,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:24:57,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:24:57,667 INFO L87 Difference]: Start difference. First operand 19484 states and 23730 transitions. Second operand 7 states. [2018-10-24 22:25:03,542 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:26:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:26:22,920 INFO L93 Difference]: Finished difference Result 39667 states and 48231 transitions. [2018-10-24 22:26:22,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:26:22,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2018-10-24 22:26:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:26:22,984 INFO L225 Difference]: With dead ends: 39667 [2018-10-24 22:26:22,984 INFO L226 Difference]: Without dead ends: 20189 [2018-10-24 22:26:23,027 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:26:23,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20189 states. [2018-10-24 22:26:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20189 to 20187. [2018-10-24 22:26:23,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20187 states. [2018-10-24 22:26:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20187 states to 20187 states and 24445 transitions. [2018-10-24 22:26:23,366 INFO L78 Accepts]: Start accepts. Automaton has 20187 states and 24445 transitions. Word has length 221 [2018-10-24 22:26:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:26:23,367 INFO L481 AbstractCegarLoop]: Abstraction has 20187 states and 24445 transitions. [2018-10-24 22:26:23,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 22:26:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 20187 states and 24445 transitions. [2018-10-24 22:26:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-10-24 22:26:23,379 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:26:23,379 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:26:23,380 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:26:23,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:26:23,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1600796374, now seen corresponding path program 1 times [2018-10-24 22:26:23,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:26:23,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:26:23,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:26:23,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:26:23,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:26:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:26:23,943 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:26:24,162 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 22:26:24,803 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 22:26:25,420 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-24 22:26:26,009 WARN L179 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-24 22:26:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 170 proven. 183 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:26:26,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:26:26,315 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:26:26,315 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 409 with the following transitions: [2018-10-24 22:26:26,316 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1875], [1877], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:26:26,324 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:26:26,325 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:26:41,811 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:26:41,811 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 22:26:41,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:26:41,820 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:26:45,899 INFO L232 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 78.1% of their original sizes. [2018-10-24 22:26:45,900 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:26:51,350 INFO L413 sIntCurrentIteration]: We have 407 unified AI predicates [2018-10-24 22:26:51,350 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:26:51,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:26:51,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-10-24 22:26:51,351 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:26:51,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 22:26:51,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 22:26:51,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-10-24 22:26:51,353 INFO L87 Difference]: Start difference. First operand 20187 states and 24445 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 22:27:42,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 22:27:42,505 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:27:42,509 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:27:42,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:27:42 BoogieIcfgContainer [2018-10-24 22:27:42,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:27:42,510 INFO L168 Benchmark]: Toolchain (without parser) took 226716.90 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 833.3 MB. Max. memory is 7.1 GB. [2018-10-24 22:27:42,512 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:27:42,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1933.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:27:42,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 458.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -976.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:27:42,514 INFO L168 Benchmark]: Boogie Preprocessor took 218.57 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-24 22:27:42,515 INFO L168 Benchmark]: RCFGBuilder took 7761.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 523.9 MB). Peak memory consumption was 523.9 MB. Max. memory is 7.1 GB. [2018-10-24 22:27:42,515 INFO L168 Benchmark]: TraceAbstraction took 216339.06 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 331.5 MB. Max. memory is 7.1 GB. [2018-10-24 22:27:42,522 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1933.53 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 458.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -976.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 218.57 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7761.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 523.9 MB). Peak memory consumption was 523.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216339.06 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 331.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 120). Cancelled while BasicCegarLoop was constructing difference of abstraction (20187states) and FLOYD_HOARE automaton (currently 9 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (162 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 216.2s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 178.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2688 SDtfs, 11620 SDslu, 778 SDs, 0 SdLazy, 20337 SolverSat, 5190 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 108.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 668 GetRequests, 619 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20187occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961023276240666 AbsIntWeakeningRatio, 0.09250398724082935 AbsIntAvgWeakeningVarsNumRemoved, 339.10526315789474 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 223 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1161 NumberOfCodeBlocks, 1161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1953137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 402/650 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown