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/Problem18_label06_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:50:02,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:50:02,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:50:02,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:50:02,713 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:50:02,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:50:02,715 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:50:02,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:50:02,719 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:50:02,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:50:02,720 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:50:02,721 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:50:02,722 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:50:02,723 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:50:02,724 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:50:02,725 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:50:02,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:50:02,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:50:02,730 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:50:02,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:50:02,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:50:02,734 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:50:02,738 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:50:02,753 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 23:50:02,786 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:50:02,786 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:50:02,788 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:50:02,788 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:50:02,788 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:50:02,788 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:50:02,789 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:50:02,789 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:50:02,789 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:50:02,789 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:50:02,789 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:50:02,790 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:50:02,790 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:50:02,790 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:50:02,792 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:50:02,792 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:50:02,792 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:50:02,792 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:50:02,793 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:50:02,793 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:50:02,793 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:50:02,793 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:50:02,793 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:50:02,794 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:50:02,795 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:50:02,795 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:50:02,795 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:50:02,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:50:02,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:50:02,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:50:02,796 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:50:02,796 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:50:02,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:50:02,797 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:50:02,797 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:50:02,797 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:50:02,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:50:02,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:50:02,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:50:02,865 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:50:02,865 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:50:02,866 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label06_false-unreach-call.c [2018-10-24 23:50:02,933 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1735daace/5a1c5c0b7f124364b3fa71f9baff5a09/FLAG2fda0ee87 [2018-10-24 23:50:03,744 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:50:03,745 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label06_false-unreach-call.c [2018-10-24 23:50:03,768 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1735daace/5a1c5c0b7f124364b3fa71f9baff5a09/FLAG2fda0ee87 [2018-10-24 23:50:03,784 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1735daace/5a1c5c0b7f124364b3fa71f9baff5a09 [2018-10-24 23:50:03,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:50:03,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:50:03,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:50:03,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:50:03,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:50:03,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:50:03" (1/1) ... [2018-10-24 23:50:03,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf5ea2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:03, skipping insertion in model container [2018-10-24 23:50:03,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:50:03" (1/1) ... [2018-10-24 23:50:03,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:50:03,964 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:50:04,964 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:50:04,970 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:50:05,417 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:50:05,447 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:50:05,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05 WrapperNode [2018-10-24 23:50:05,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:50:05,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:50:05,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:50:05,450 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:50:05,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:05,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:05,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:50:05,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:50:05,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:50:05,880 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:50:05,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:05,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:05,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:05,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:06,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:06,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:06,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (1/1) ... [2018-10-24 23:50:06,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:50:06,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:50:06,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:50:06,126 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:50:06,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (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 23:50:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:50:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:50:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:50:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:50:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:50:06,201 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:50:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:50:06,202 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:50:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:50:06,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:50:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:50:06,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:50:14,081 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:50:14,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:50:14 BoogieIcfgContainer [2018-10-24 23:50:14,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:50:14,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:50:14,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:50:14,087 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:50:14,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:50:03" (1/3) ... [2018-10-24 23:50:14,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea1265a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:50:14, skipping insertion in model container [2018-10-24 23:50:14,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:50:05" (2/3) ... [2018-10-24 23:50:14,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea1265a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:50:14, skipping insertion in model container [2018-10-24 23:50:14,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:50:14" (3/3) ... [2018-10-24 23:50:14,091 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label06_false-unreach-call.c [2018-10-24 23:50:14,102 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:50:14,112 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:50:14,131 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:50:14,176 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:50:14,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:50:14,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:50:14,177 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:50:14,177 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:50:14,177 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:50:14,177 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:50:14,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:50:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 23:50:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-24 23:50:14,224 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:14,225 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:50:14,228 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:14,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:14,235 INFO L82 PathProgramCache]: Analyzing trace with hash 396758956, now seen corresponding path program 1 times [2018-10-24 23:50:14,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:14,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:14,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:14,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:14,300 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:14,670 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:50:14,786 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 23:50:14,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:50:14,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:50:14,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:50:14,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:50:14,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:50:14,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:50:14,815 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 23:50:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:21,761 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 23:50:21,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:50:21,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-10-24 23:50:21,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:21,808 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 23:50:21,808 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 23:50:21,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:50:21,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 23:50:21,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 23:50:21,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 23:50:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-10-24 23:50:21,995 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 32 [2018-10-24 23:50:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:21,995 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-10-24 23:50:21,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:50:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-10-24 23:50:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-24 23:50:22,002 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:22,002 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:22,002 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:22,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash 642583282, now seen corresponding path program 1 times [2018-10-24 23:50:22,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:22,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:22,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:22,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:22,005 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:22,614 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:50:22,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:50:22,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:50:22,615 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:50:22,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:50:22,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:50:22,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:50:22,617 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-10-24 23:50:33,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:33,353 INFO L93 Difference]: Finished difference Result 5789 states and 11192 transitions. [2018-10-24 23:50:33,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:50:33,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-10-24 23:50:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:33,390 INFO L225 Difference]: With dead ends: 5789 [2018-10-24 23:50:33,390 INFO L226 Difference]: Without dead ends: 4321 [2018-10-24 23:50:33,401 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:50:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2018-10-24 23:50:33,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 4295. [2018-10-24 23:50:33,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4295 states. [2018-10-24 23:50:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 7032 transitions. [2018-10-24 23:50:33,564 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 7032 transitions. Word has length 106 [2018-10-24 23:50:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:33,564 INFO L481 AbstractCegarLoop]: Abstraction has 4295 states and 7032 transitions. [2018-10-24 23:50:33,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:50:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 7032 transitions. [2018-10-24 23:50:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-24 23:50:33,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:33,572 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:33,572 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:33,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:33,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1007584981, now seen corresponding path program 1 times [2018-10-24 23:50:33,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:33,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:33,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:33,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:33,574 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:50:33,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:50:33,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:50:33,775 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:50:33,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:50:33,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:50:33,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:50:33,777 INFO L87 Difference]: Start difference. First operand 4295 states and 7032 transitions. Second operand 5 states. [2018-10-24 23:50:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:46,555 INFO L93 Difference]: Finished difference Result 14323 states and 23451 transitions. [2018-10-24 23:50:46,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:50:46,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2018-10-24 23:50:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:46,612 INFO L225 Difference]: With dead ends: 14323 [2018-10-24 23:50:46,612 INFO L226 Difference]: Without dead ends: 10034 [2018-10-24 23:50:46,632 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:50:46,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10034 states. [2018-10-24 23:50:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10034 to 9930. [2018-10-24 23:50:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9930 states. [2018-10-24 23:50:46,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9930 states to 9930 states and 14563 transitions. [2018-10-24 23:50:46,866 INFO L78 Accepts]: Start accepts. Automaton has 9930 states and 14563 transitions. Word has length 109 [2018-10-24 23:50:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:46,867 INFO L481 AbstractCegarLoop]: Abstraction has 9930 states and 14563 transitions. [2018-10-24 23:50:46,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:50:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand 9930 states and 14563 transitions. [2018-10-24 23:50:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 23:50:46,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:46,872 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:46,872 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:46,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:46,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2115491697, now seen corresponding path program 1 times [2018-10-24 23:50:46,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:46,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:46,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:46,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:46,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:50:47,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:50:47,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:50:47,132 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:50:47,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:50:47,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:50:47,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:50:47,135 INFO L87 Difference]: Start difference. First operand 9930 states and 14563 transitions. Second operand 4 states. [2018-10-24 23:50:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:55,308 INFO L93 Difference]: Finished difference Result 29905 states and 46811 transitions. [2018-10-24 23:50:55,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:50:55,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2018-10-24 23:50:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:55,388 INFO L225 Difference]: With dead ends: 29905 [2018-10-24 23:50:55,389 INFO L226 Difference]: Without dead ends: 19981 [2018-10-24 23:50:55,431 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 23:50:55,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19981 states. [2018-10-24 23:50:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19981 to 19978. [2018-10-24 23:50:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19978 states. [2018-10-24 23:50:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19978 states to 19978 states and 29097 transitions. [2018-10-24 23:50:55,889 INFO L78 Accepts]: Start accepts. Automaton has 19978 states and 29097 transitions. Word has length 139 [2018-10-24 23:50:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:55,890 INFO L481 AbstractCegarLoop]: Abstraction has 19978 states and 29097 transitions. [2018-10-24 23:50:55,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:50:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 19978 states and 29097 transitions. [2018-10-24 23:50:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-10-24 23:50:55,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:55,899 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:50:55,900 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:55,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:55,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1955458851, now seen corresponding path program 1 times [2018-10-24 23:50:55,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:55,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:55,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:55,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:55,901 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:56,173 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:50:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 50 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:50:56,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:56,382 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:50:56,383 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-10-24 23:50:56,388 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1779], [1781], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 23:50:56,461 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:50:56,461 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:50:56,909 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:50:56,911 INFO L272 AbstractInterpreter]: Visited 82 different actions 82 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:50:56,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:56,942 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:50:57,346 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 77.69% of their original sizes. [2018-10-24 23:50:57,347 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:50:57,533 INFO L413 sIntCurrentIteration]: We have 178 unified AI predicates [2018-10-24 23:50:57,533 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:50:57,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:50:57,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-24 23:50:57,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:50:57,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:50:57,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:50:57,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:50:57,536 INFO L87 Difference]: Start difference. First operand 19978 states and 29097 transitions. Second operand 6 states. [2018-10-24 23:51:23,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:51:23,719 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: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.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) 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 23:51:23,726 INFO L168 Benchmark]: Toolchain (without parser) took 79930.08 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -841.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 23:51:23,727 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:51:23,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1650.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:51:23,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 429.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -967.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 23:51:23,730 INFO L168 Benchmark]: Boogie Preprocessor took 246.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-24 23:51:23,730 INFO L168 Benchmark]: RCFGBuilder took 7956.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.4 MB). Peak memory consumption was 515.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:51:23,731 INFO L168 Benchmark]: TraceAbstraction took 69641.20 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.3 GB in the end (delta: -551.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 23:51:23,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1650.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 429.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 792.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -967.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 246.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7956.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.4 MB). Peak memory consumption was 515.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 69641.20 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.3 GB in the end (delta: -551.9 MB). Peak memory consumption was 1.3 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...