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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:36:24,935 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:36:24,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:36:24,956 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:36:24,956 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:36:24,957 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:36:24,959 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:36:24,960 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:36:24,962 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:36:24,963 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:36:24,964 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:36:24,964 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:36:24,965 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:36:24,966 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:36:24,967 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:36:24,968 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:36:24,969 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:36:24,971 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:36:24,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:36:24,974 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:36:24,975 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:36:24,976 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:36:24,979 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:36:24,988 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 23:36:25,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:36:25,018 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:36:25,020 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:36:25,020 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:36:25,021 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:36:25,021 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:36:25,021 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:36:25,021 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:36:25,021 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:36:25,022 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:36:25,022 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:36:25,022 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:36:25,022 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:36:25,022 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:36:25,024 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:36:25,025 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:36:25,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:36:25,025 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:36:25,025 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:36:25,025 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:36:25,025 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:36:25,028 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:36:25,028 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:36:25,028 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:36:25,028 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:36:25,028 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:36:25,029 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:36:25,029 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:36:25,029 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:36:25,029 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:36:25,029 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:36:25,030 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:36:25,030 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:36:25,030 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:36:25,030 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:36:25,030 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:36:25,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:36:25,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:36:25,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:36:25,122 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:36:25,122 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:36:25,123 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c [2018-10-24 23:36:25,191 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c161ca25/6f5bd4c91011498f9f87448463278693/FLAG8b3ad76ac [2018-10-24 23:36:26,076 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:36:26,077 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c [2018-10-24 23:36:26,114 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c161ca25/6f5bd4c91011498f9f87448463278693/FLAG8b3ad76ac [2018-10-24 23:36:26,133 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8c161ca25/6f5bd4c91011498f9f87448463278693 [2018-10-24 23:36:26,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:36:26,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:36:26,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:36:26,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:36:26,157 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:36:26,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:26" (1/1) ... [2018-10-24 23:36:26,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed858fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:26, skipping insertion in model container [2018-10-24 23:36:26,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:26" (1/1) ... [2018-10-24 23:36:26,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:36:26,373 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:36:28,004 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:36:28,010 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:36:28,721 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:36:28,758 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:36:28,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28 WrapperNode [2018-10-24 23:36:28,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:36:28,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:36:28,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:36:28,760 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:36:28,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:28,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:36:29,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:36:29,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:36:29,355 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:36:29,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (1/1) ... [2018-10-24 23:36:29,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:36:29,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:36:29,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:36:29,665 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:36:29,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (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 23:36:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:36:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:36:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 23:36:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 23:36:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:36:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:36:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:36:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:36:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:36:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:36:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:36:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:36:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:36:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:36:41,664 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:36:41,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:41 BoogieIcfgContainer [2018-10-24 23:36:41,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:36:41,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:36:41,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:36:41,669 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:36:41,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:36:26" (1/3) ... [2018-10-24 23:36:41,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cf782f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:41, skipping insertion in model container [2018-10-24 23:36:41,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:28" (2/3) ... [2018-10-24 23:36:41,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cf782f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:41, skipping insertion in model container [2018-10-24 23:36:41,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:41" (3/3) ... [2018-10-24 23:36:41,673 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label43_false-unreach-call.c [2018-10-24 23:36:41,683 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:36:41,693 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:36:41,711 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:36:41,771 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:36:41,771 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:36:41,771 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:36:41,771 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:36:41,772 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:36:41,772 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:36:41,772 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:36:41,772 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:36:41,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 23:36:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 23:36:41,847 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:36:41,847 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] [2018-10-24 23:36:41,850 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:36:41,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:36:41,855 INFO L82 PathProgramCache]: Analyzing trace with hash -2074424869, now seen corresponding path program 1 times [2018-10-24 23:36:41,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:36:41,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:36:41,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:36:41,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:36:41,907 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:36:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:36:42,322 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:36:42,432 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 23:36:42,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:36:42,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:36:42,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:36:42,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:36:42,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:36:42,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:36:42,460 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-24 23:36:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:36:54,330 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-10-24 23:36:54,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:36:54,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-10-24 23:36:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:36:54,369 INFO L225 Difference]: With dead ends: 3101 [2018-10-24 23:36:54,369 INFO L226 Difference]: Without dead ends: 1979 [2018-10-24 23:36:54,381 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 23:36:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-10-24 23:36:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-10-24 23:36:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-10-24 23:36:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-10-24 23:36:54,571 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 25 [2018-10-24 23:36:54,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:36:54,572 INFO L481 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-10-24 23:36:54,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:36:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-10-24 23:36:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 23:36:54,582 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:36:54,583 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:36:54,583 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:36:54,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:36:54,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1247410474, now seen corresponding path program 1 times [2018-10-24 23:36:54,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:36:54,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:36:54,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:36:54,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:36:54,587 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:36:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:36:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:36:54,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:36:54,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:36:54,923 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:36:54,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:36:54,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:36:54,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:36:54,927 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-10-24 23:37:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:37:17,719 INFO L93 Difference]: Finished difference Result 5717 states and 10466 transitions. [2018-10-24 23:37:17,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:37:17,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2018-10-24 23:37:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:37:17,743 INFO L225 Difference]: With dead ends: 5717 [2018-10-24 23:37:17,743 INFO L226 Difference]: Without dead ends: 3764 [2018-10-24 23:37:17,751 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:37:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2018-10-24 23:37:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3679. [2018-10-24 23:37:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3679 states. [2018-10-24 23:37:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 6042 transitions. [2018-10-24 23:37:17,886 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 6042 transitions. Word has length 101 [2018-10-24 23:37:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:37:17,886 INFO L481 AbstractCegarLoop]: Abstraction has 3679 states and 6042 transitions. [2018-10-24 23:37:17,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:37:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 6042 transitions. [2018-10-24 23:37:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 23:37:17,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:37:17,895 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:37:17,898 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:37:17,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:37:17,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1584202367, now seen corresponding path program 1 times [2018-10-24 23:37:17,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:37:17,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:37:17,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:37:17,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:37:17,900 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:37:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:37:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:37:18,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:37:18,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:37:18,137 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:37:18,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:37:18,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:37:18,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:37:18,138 INFO L87 Difference]: Start difference. First operand 3679 states and 6042 transitions. Second operand 6 states. [2018-10-24 23:37:30,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:37:30,107 INFO L93 Difference]: Finished difference Result 10857 states and 18392 transitions. [2018-10-24 23:37:30,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:37:30,110 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-10-24 23:37:30,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:37:30,147 INFO L225 Difference]: With dead ends: 10857 [2018-10-24 23:37:30,147 INFO L226 Difference]: Without dead ends: 7184 [2018-10-24 23:37:30,161 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 23:37:30,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2018-10-24 23:37:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 7133. [2018-10-24 23:37:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7133 states. [2018-10-24 23:37:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 10914 transitions. [2018-10-24 23:37:30,362 INFO L78 Accepts]: Start accepts. Automaton has 7133 states and 10914 transitions. Word has length 102 [2018-10-24 23:37:30,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:37:30,362 INFO L481 AbstractCegarLoop]: Abstraction has 7133 states and 10914 transitions. [2018-10-24 23:37:30,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:37:30,363 INFO L276 IsEmpty]: Start isEmpty. Operand 7133 states and 10914 transitions. [2018-10-24 23:37:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 23:37:30,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:37:30,365 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:37:30,366 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:37:30,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:37:30,366 INFO L82 PathProgramCache]: Analyzing trace with hash -51827352, now seen corresponding path program 1 times [2018-10-24 23:37:30,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:37:30,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:37:30,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:37:30,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:37:30,368 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:37:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:37:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:37:30,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:37:30,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:37:30,507 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:37:30,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:37:30,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:37:30,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:37:30,509 INFO L87 Difference]: Start difference. First operand 7133 states and 10914 transitions. Second operand 3 states. [2018-10-24 23:37:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:37:37,090 INFO L93 Difference]: Finished difference Result 20919 states and 33369 transitions. [2018-10-24 23:37:37,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:37:37,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2018-10-24 23:37:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:37:37,165 INFO L225 Difference]: With dead ends: 20919 [2018-10-24 23:37:37,168 INFO L226 Difference]: Without dead ends: 13792 [2018-10-24 23:37:37,209 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 23:37:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2018-10-24 23:37:37,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 13791. [2018-10-24 23:37:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13791 states. [2018-10-24 23:37:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13791 states to 13791 states and 20341 transitions. [2018-10-24 23:37:37,632 INFO L78 Accepts]: Start accepts. Automaton has 13791 states and 20341 transitions. Word has length 126 [2018-10-24 23:37:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:37:37,633 INFO L481 AbstractCegarLoop]: Abstraction has 13791 states and 20341 transitions. [2018-10-24 23:37:37,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:37:37,633 INFO L276 IsEmpty]: Start isEmpty. Operand 13791 states and 20341 transitions. [2018-10-24 23:37:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-10-24 23:37:37,642 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:37:37,643 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:37:37,643 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:37:37,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:37:37,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1302306563, now seen corresponding path program 1 times [2018-10-24 23:37:37,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:37:37,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:37:37,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:37:37,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:37:37,647 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:37:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:37:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 36 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:37:38,218 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:37:38,218 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:37:38,219 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-10-24 23:37:38,221 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2727], [2729], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 23:37:38,287 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:37:38,287 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:37:43,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:37:43,785 INFO L272 AbstractInterpreter]: Visited 83 different actions 83 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 23:37:43,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:37:43,795 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:37:47,782 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 70.86% of their original sizes. [2018-10-24 23:37:47,783 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:37:48,049 INFO L413 sIntCurrentIteration]: We have 178 unified AI predicates [2018-10-24 23:37:48,049 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:37:48,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:37:48,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-24 23:37:48,050 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:37:48,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:37:48,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:37:48,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:37:48,052 INFO L87 Difference]: Start difference. First operand 13791 states and 20341 transitions. Second operand 6 states. [2018-10-24 23:37:52,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:37:52,395 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-24 23:37:52,400 INFO L168 Benchmark]: Toolchain (without parser) took 86254.57 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 23:37:52,402 INFO L168 Benchmark]: CDTParser took 0.23 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 23:37:52,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2610.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-24 23:37:52,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 594.65 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 816.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2018-10-24 23:37:52,404 INFO L168 Benchmark]: Boogie Preprocessor took 309.52 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:37:52,407 INFO L168 Benchmark]: RCFGBuilder took 12000.12 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 200.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -6.9 MB). Peak memory consumption was 677.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:37:52,409 INFO L168 Benchmark]: TraceAbstraction took 70733.72 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 980.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 33.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-24 23:37:52,418 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2610.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 594.65 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 816.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 309.52 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12000.12 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 200.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -6.9 MB). Peak memory consumption was 677.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 70733.72 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 980.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 33.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...