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/Problem11_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:13:27,848 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:13:27,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:13:27,864 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:13:27,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:13:27,867 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:13:27,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:13:27,875 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:13:27,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:13:27,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:13:27,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:13:27,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:13:27,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:13:27,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:13:27,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:13:27,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:13:27,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:13:27,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:13:27,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:13:27,894 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:13:27,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:13:27,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:13:27,899 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:13:27,908 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 18:13:27,924 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:13:27,925 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:13:27,926 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:13:27,926 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:13:27,926 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:13:27,926 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:13:27,926 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:13:27,927 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:13:27,927 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:13:27,927 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:13:27,927 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:13:27,927 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:13:27,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:13:27,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:13:27,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:13:27,928 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:13:27,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:13:27,929 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:13:27,929 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:13:27,929 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:13:27,929 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:13:27,930 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:13:27,930 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:13:27,930 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:13:27,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:13:27,930 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:13:27,931 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:13:27,931 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:13:27,931 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:13:27,931 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:13:27,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:13:27,932 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:13:27,932 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:13:27,932 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:13:27,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:13:27,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:13:27,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:13:27,996 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:13:27,996 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:13:27,997 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c [2018-10-24 18:13:28,069 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/57eb249ce/0278ec11dc75497b92273741c61bbec1/FLAGf6dbc2d5a [2018-10-24 18:13:28,747 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:13:28,748 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label51_false-unreach-call.c [2018-10-24 18:13:28,767 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/57eb249ce/0278ec11dc75497b92273741c61bbec1/FLAGf6dbc2d5a [2018-10-24 18:13:28,784 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/57eb249ce/0278ec11dc75497b92273741c61bbec1 [2018-10-24 18:13:28,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:13:28,799 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:13:28,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:13:28,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:13:28,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:13:28,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:13:28" (1/1) ... [2018-10-24 18:13:28,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a61b580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:28, skipping insertion in model container [2018-10-24 18:13:28,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:13:28" (1/1) ... [2018-10-24 18:13:28,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:13:28,903 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:13:29,448 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:13:29,453 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:13:29,664 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:13:29,687 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:13:29,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29 WrapperNode [2018-10-24 18:13:29,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:13:29,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:13:29,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:13:29,690 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:13:29,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:29,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:29,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:13:29,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:13:29,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:13:29,996 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:13:30,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (1/1) ... [2018-10-24 18:13:30,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:13:30,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:13:30,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:13:30,133 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:13:30,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (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 18:13:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:13:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:13:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:13:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:13:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:13:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:13:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:13:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:13:34,810 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:13:34,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:13:34 BoogieIcfgContainer [2018-10-24 18:13:34,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:13:34,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:13:34,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:13:34,817 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:13:34,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:13:28" (1/3) ... [2018-10-24 18:13:34,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124e502d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:13:34, skipping insertion in model container [2018-10-24 18:13:34,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:13:29" (2/3) ... [2018-10-24 18:13:34,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124e502d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:13:34, skipping insertion in model container [2018-10-24 18:13:34,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:13:34" (3/3) ... [2018-10-24 18:13:34,822 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label51_false-unreach-call.c [2018-10-24 18:13:34,834 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:13:34,844 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:13:34,862 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:13:34,903 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:13:34,904 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:13:34,904 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:13:34,904 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:13:34,904 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:13:34,905 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:13:34,905 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:13:34,905 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:13:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 18:13:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-24 18:13:34,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:34,953 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:13:34,955 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:34,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:34,962 INFO L82 PathProgramCache]: Analyzing trace with hash 697929684, now seen corresponding path program 1 times [2018-10-24 18:13:34,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:35,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:35,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:35,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:35,023 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:35,412 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 18:13:35,419 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 18:13:35,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:13:35,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:13:35,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:35,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:13:35,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:13:35,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:13:35,447 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 18:13:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:39,193 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-10-24 18:13:39,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:13:39,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-24 18:13:39,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:39,224 INFO L225 Difference]: With dead ends: 979 [2018-10-24 18:13:39,224 INFO L226 Difference]: Without dead ends: 680 [2018-10-24 18:13:39,233 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:13:39,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-10-24 18:13:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-10-24 18:13:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-10-24 18:13:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-10-24 18:13:39,323 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 18 [2018-10-24 18:13:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:39,324 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-10-24 18:13:39,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:13:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-10-24 18:13:39,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-24 18:13:39,329 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:39,329 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:13:39,330 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:39,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:39,330 INFO L82 PathProgramCache]: Analyzing trace with hash 796033475, now seen corresponding path program 1 times [2018-10-24 18:13:39,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:39,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:39,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:39,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:39,332 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:13:39,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:13:39,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:13:39,733 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:39,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:13:39,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:13:39,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:13:39,736 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-10-24 18:13:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:43,966 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-10-24 18:13:43,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:13:43,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-10-24 18:13:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:43,990 INFO L225 Difference]: With dead ends: 1555 [2018-10-24 18:13:43,991 INFO L226 Difference]: Without dead ends: 1077 [2018-10-24 18:13:43,994 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:13:43,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-10-24 18:13:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-10-24 18:13:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-10-24 18:13:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-10-24 18:13:44,059 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 91 [2018-10-24 18:13:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:44,060 INFO L481 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-10-24 18:13:44,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:13:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-10-24 18:13:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-24 18:13:44,063 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:44,064 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:13:44,064 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:44,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:44,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1422670888, now seen corresponding path program 1 times [2018-10-24 18:13:44,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:44,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:44,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:44,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:44,066 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:13:44,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:13:44,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:13:44,349 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:44,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:13:44,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:13:44,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:13:44,350 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-10-24 18:13:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:47,424 INFO L93 Difference]: Finished difference Result 2906 states and 4462 transitions. [2018-10-24 18:13:47,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:13:47,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-10-24 18:13:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:47,442 INFO L225 Difference]: With dead ends: 2906 [2018-10-24 18:13:47,443 INFO L226 Difference]: Without dead ends: 1849 [2018-10-24 18:13:47,450 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:13:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2018-10-24 18:13:47,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1647. [2018-10-24 18:13:47,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1647 states. [2018-10-24 18:13:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2425 transitions. [2018-10-24 18:13:47,505 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2425 transitions. Word has length 92 [2018-10-24 18:13:47,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:47,506 INFO L481 AbstractCegarLoop]: Abstraction has 1647 states and 2425 transitions. [2018-10-24 18:13:47,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:13:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2425 transitions. [2018-10-24 18:13:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-24 18:13:47,509 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:47,510 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:13:47,510 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:47,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:47,511 INFO L82 PathProgramCache]: Analyzing trace with hash 769801183, now seen corresponding path program 1 times [2018-10-24 18:13:47,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:47,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:47,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:47,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:47,512 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:13:47,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:13:47,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 18:13:47,819 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:13:47,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:13:47,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:13:47,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:13:47,820 INFO L87 Difference]: Start difference. First operand 1647 states and 2425 transitions. Second operand 7 states. [2018-10-24 18:13:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:13:53,484 INFO L93 Difference]: Finished difference Result 4753 states and 7319 transitions. [2018-10-24 18:13:53,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 18:13:53,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-10-24 18:13:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:13:53,509 INFO L225 Difference]: With dead ends: 4753 [2018-10-24 18:13:53,509 INFO L226 Difference]: Without dead ends: 2917 [2018-10-24 18:13:53,524 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 18:13:53,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2018-10-24 18:13:53,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2760. [2018-10-24 18:13:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2760 states. [2018-10-24 18:13:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3964 transitions. [2018-10-24 18:13:53,624 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3964 transitions. Word has length 93 [2018-10-24 18:13:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:13:53,625 INFO L481 AbstractCegarLoop]: Abstraction has 2760 states and 3964 transitions. [2018-10-24 18:13:53,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:13:53,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3964 transitions. [2018-10-24 18:13:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-24 18:13:53,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:13:53,633 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:13:53,633 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:13:53,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:13:53,634 INFO L82 PathProgramCache]: Analyzing trace with hash 603688054, now seen corresponding path program 1 times [2018-10-24 18:13:53,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:13:53,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:53,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:13:53,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:13:53,636 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:13:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:13:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 18:13:54,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:13:54,336 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:13:54,337 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-10-24 18:13:54,341 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [45], [47], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 18:13:54,442 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:13:54,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:13:57,995 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:14:12,956 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:14:12,957 INFO L272 AbstractInterpreter]: Visited 125 different actions 363 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 18:14:12,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:14:12,998 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:14:15,913 INFO L232 lantSequenceWeakener]: Weakened 122 states. On average, predicates are now at 73.64% of their original sizes. [2018-10-24 18:14:15,913 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:14:23,533 INFO L413 sIntCurrentIteration]: We have 209 unified AI predicates [2018-10-24 18:14:23,533 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:14:23,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:14:23,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-10-24 18:14:23,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:14:23,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-24 18:14:23,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-24 18:14:23,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-10-24 18:14:23,536 INFO L87 Difference]: Start difference. First operand 2760 states and 3964 transitions. Second operand 19 states. [2018-10-24 18:16:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:16:29,344 INFO L93 Difference]: Finished difference Result 5902 states and 8391 transitions. [2018-10-24 18:16:29,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 18:16:29,345 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 210 [2018-10-24 18:16:29,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:16:29,361 INFO L225 Difference]: With dead ends: 5902 [2018-10-24 18:16:29,362 INFO L226 Difference]: Without dead ends: 3148 [2018-10-24 18:16:29,371 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2018-10-24 18:16:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2018-10-24 18:16:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3141. [2018-10-24 18:16:29,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3141 states. [2018-10-24 18:16:29,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4376 transitions. [2018-10-24 18:16:29,537 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 4376 transitions. Word has length 210 [2018-10-24 18:16:29,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:16:29,539 INFO L481 AbstractCegarLoop]: Abstraction has 3141 states and 4376 transitions. [2018-10-24 18:16:29,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-24 18:16:29,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 4376 transitions. [2018-10-24 18:16:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-24 18:16:29,545 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:16:29,546 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:16:29,546 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:16:29,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:16:29,547 INFO L82 PathProgramCache]: Analyzing trace with hash -949463486, now seen corresponding path program 1 times [2018-10-24 18:16:29,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:16:29,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:16:29,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:16:29,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:16:29,549 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:16:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:16:29,931 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-24 18:16:29,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:16:29,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:16:29,932 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:16:29,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:16:29,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:16:29,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:16:29,933 INFO L87 Difference]: Start difference. First operand 3141 states and 4376 transitions. Second operand 4 states. [2018-10-24 18:16:32,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:16:32,369 INFO L93 Difference]: Finished difference Result 8986 states and 13883 transitions. [2018-10-24 18:16:32,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:16:32,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-10-24 18:16:32,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:16:32,414 INFO L225 Difference]: With dead ends: 8986 [2018-10-24 18:16:32,415 INFO L226 Difference]: Without dead ends: 6232 [2018-10-24 18:16:32,441 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:16:32,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6232 states. [2018-10-24 18:16:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6232 to 5965. [2018-10-24 18:16:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5965 states. [2018-10-24 18:16:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 8595 transitions. [2018-10-24 18:16:32,696 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 8595 transitions. Word has length 220 [2018-10-24 18:16:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:16:32,697 INFO L481 AbstractCegarLoop]: Abstraction has 5965 states and 8595 transitions. [2018-10-24 18:16:32,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:16:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 8595 transitions. [2018-10-24 18:16:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-24 18:16:32,705 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:16:32,706 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:16:32,706 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:16:32,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:16:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2006407324, now seen corresponding path program 1 times [2018-10-24 18:16:32,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:16:32,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:16:32,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:16:32,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:16:32,708 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:16:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:16:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-24 18:16:32,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:16:32,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:16:32,932 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:16:32,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:16:32,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:16:32,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:16:32,933 INFO L87 Difference]: Start difference. First operand 5965 states and 8595 transitions. Second operand 3 states. [2018-10-24 18:16:34,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:16:34,735 INFO L93 Difference]: Finished difference Result 16312 states and 25100 transitions. [2018-10-24 18:16:34,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:16:34,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2018-10-24 18:16:34,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:16:34,804 INFO L225 Difference]: With dead ends: 16312 [2018-10-24 18:16:34,804 INFO L226 Difference]: Without dead ends: 10734 [2018-10-24 18:16:34,850 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 18:16:34,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2018-10-24 18:16:35,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10538. [2018-10-24 18:16:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10538 states. [2018-10-24 18:16:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10538 states to 10538 states and 15226 transitions. [2018-10-24 18:16:35,246 INFO L78 Accepts]: Start accepts. Automaton has 10538 states and 15226 transitions. Word has length 241 [2018-10-24 18:16:35,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:16:35,247 INFO L481 AbstractCegarLoop]: Abstraction has 10538 states and 15226 transitions. [2018-10-24 18:16:35,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:16:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 10538 states and 15226 transitions. [2018-10-24 18:16:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-10-24 18:16:35,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:16:35,261 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:16:35,261 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:16:35,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:16:35,261 INFO L82 PathProgramCache]: Analyzing trace with hash 169630205, now seen corresponding path program 1 times [2018-10-24 18:16:35,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:16:35,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:16:35,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:16:35,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:16:35,263 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:16:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:16:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-24 18:16:36,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:16:36,000 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:16:36,000 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-10-24 18:16:36,002 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [45], [47], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [649], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 18:16:36,009 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:16:36,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:16:39,536 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:16:54,191 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:16:54,191 INFO L272 AbstractInterpreter]: Visited 140 different actions 408 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 18:16:54,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:16:54,231 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:16:56,936 INFO L232 lantSequenceWeakener]: Weakened 32 states. On average, predicates are now at 74.16% of their original sizes. [2018-10-24 18:16:56,936 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 18:17:26,180 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:17:26,186 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:17:26,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:17:26 BoogieIcfgContainer [2018-10-24 18:17:26,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:17:26,187 INFO L168 Benchmark]: Toolchain (without parser) took 237389.51 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 876.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:26,189 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. [2018-10-24 18:17:26,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.24 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:26,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 306.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -838.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:26,191 INFO L168 Benchmark]: Boogie Preprocessor took 136.55 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:17:26,192 INFO L168 Benchmark]: RCFGBuilder took 4679.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 177.2 MB). Peak memory consumption was 177.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:26,193 INFO L168 Benchmark]: TraceAbstraction took 231373.50 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 735.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:17:26,198 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 888.24 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 306.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -838.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.55 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4679.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 177.2 MB). Peak memory consumption was 177.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231373.50 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 735.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was analyzing trace of length 258 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 231.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 147.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1781 SDtfs, 5460 SDslu, 1055 SDs, 0 SdLazy, 10011 SolverSat, 2087 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 266 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10538occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9952722307561022 AbsIntWeakeningRatio, 0.12258064516129032 AbsIntAvgWeakeningVarsNumRemoved, 1114.0043010752688 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 1039 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 965 NumberOfCodeBlocks, 965 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 958 ConstructedInterpolants, 0 QuantifiedInterpolants, 442268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 325/350 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown