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/Problem12_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:34:01,006 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:34:01,008 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:34:01,025 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:34:01,025 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:34:01,027 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:34:01,029 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:34:01,032 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:34:01,034 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:34:01,035 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:34:01,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:34:01,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:34:01,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:34:01,049 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:34:01,051 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:34:01,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:34:01,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:34:01,055 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:34:01,060 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:34:01,061 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:34:01,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:34:01,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:34:01,067 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:34:01,080 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 23:34:01,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:34:01,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:34:01,107 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:34:01,107 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:34:01,108 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:34:01,108 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:34:01,108 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:34:01,108 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:34:01,108 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:34:01,109 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:34:01,109 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:34:01,109 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:34:01,109 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:34:01,109 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:34:01,110 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:34:01,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:34:01,111 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:34:01,111 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:34:01,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:34:01,111 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:34:01,111 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:34:01,111 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:34:01,113 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:34:01,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:34:01,114 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:34:01,114 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:34:01,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:34:01,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:34:01,115 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:34:01,115 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:34:01,115 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:34:01,115 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:34:01,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:34:01,115 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:34:01,116 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:34:01,116 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:34:01,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:34:01,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:34:01,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:34:01,202 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:34:01,202 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:34:01,203 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label55_false-unreach-call.c [2018-10-24 23:34:01,268 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9c2086847/2129ddcba97740618221f366ba8c9183/FLAGe91f91805 [2018-10-24 23:34:02,097 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:34:02,098 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label55_false-unreach-call.c [2018-10-24 23:34:02,136 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9c2086847/2129ddcba97740618221f366ba8c9183/FLAGe91f91805 [2018-10-24 23:34:02,156 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9c2086847/2129ddcba97740618221f366ba8c9183 [2018-10-24 23:34:02,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:34:02,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:34:02,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:34:02,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:34:02,180 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:34:02,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:34:02" (1/1) ... [2018-10-24 23:34:02,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:02, skipping insertion in model container [2018-10-24 23:34:02,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:34:02" (1/1) ... [2018-10-24 23:34:02,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:34:02,374 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:34:03,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:34:03,598 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:34:04,172 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:34:04,208 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:34:04,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04 WrapperNode [2018-10-24 23:34:04,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:34:04,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:34:04,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:34:04,210 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:34:04,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:34:04,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:34:04,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:34:04,743 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:34:04,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:04,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:05,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (1/1) ... [2018-10-24 23:34:05,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:34:05,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:34:05,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:34:05,078 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:34:05,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (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 23:34:05,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:34:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:34:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 23:34:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 23:34:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:34:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:34:05,150 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:34:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:34:05,151 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:34:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:34:05,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:34:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:34:05,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:34:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:34:16,589 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:34:16,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:34:16 BoogieIcfgContainer [2018-10-24 23:34:16,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:34:16,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:34:16,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:34:16,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:34:16,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:34:02" (1/3) ... [2018-10-24 23:34:16,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be9eaa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:34:16, skipping insertion in model container [2018-10-24 23:34:16,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:34:04" (2/3) ... [2018-10-24 23:34:16,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be9eaa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:34:16, skipping insertion in model container [2018-10-24 23:34:16,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:34:16" (3/3) ... [2018-10-24 23:34:16,599 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label55_false-unreach-call.c [2018-10-24 23:34:16,609 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:34:16,617 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:34:16,636 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:34:16,683 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:34:16,683 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:34:16,683 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:34:16,683 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:34:16,683 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:34:16,684 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:34:16,684 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:34:16,684 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:34:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 23:34:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-24 23:34:16,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:34:16,845 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:34:16,848 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:34:16,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:34:16,858 INFO L82 PathProgramCache]: Analyzing trace with hash -2129497701, now seen corresponding path program 1 times [2018-10-24 23:34:16,860 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:34:16,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:16,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:34:16,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:16,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:34:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:34:17,299 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 23:34:17,304 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 23:34:17,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:34:17,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:34:17,307 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:34:17,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:34:17,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:34:17,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:34:17,343 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-10-24 23:34:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:34:29,340 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-10-24 23:34:29,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:34:29,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-24 23:34:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:34:29,396 INFO L225 Difference]: With dead ends: 3234 [2018-10-24 23:34:29,396 INFO L226 Difference]: Without dead ends: 2388 [2018-10-24 23:34:29,410 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:34:29,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-10-24 23:34:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-10-24 23:34:29,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-10-24 23:34:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3845 transitions. [2018-10-24 23:34:29,604 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3845 transitions. Word has length 15 [2018-10-24 23:34:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:34:29,604 INFO L481 AbstractCegarLoop]: Abstraction has 2388 states and 3845 transitions. [2018-10-24 23:34:29,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:34:29,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3845 transitions. [2018-10-24 23:34:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 23:34:29,610 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:34:29,610 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:34:29,610 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:34:29,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:34:29,611 INFO L82 PathProgramCache]: Analyzing trace with hash -135376495, now seen corresponding path program 1 times [2018-10-24 23:34:29,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:34:29,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:29,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:34:29,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:29,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:34:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:34:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:34:30,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:34:30,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:34:30,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:34:30,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:34:30,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:34:30,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:34:30,237 INFO L87 Difference]: Start difference. First operand 2388 states and 3845 transitions. Second operand 6 states. [2018-10-24 23:34:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:34:46,147 INFO L93 Difference]: Finished difference Result 9463 states and 15573 transitions. [2018-10-24 23:34:46,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:34:46,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-10-24 23:34:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:34:46,209 INFO L225 Difference]: With dead ends: 9463 [2018-10-24 23:34:46,209 INFO L226 Difference]: Without dead ends: 7081 [2018-10-24 23:34:46,222 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 23:34:46,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states. [2018-10-24 23:34:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7081 to 7037. [2018-10-24 23:34:46,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7037 states. [2018-10-24 23:34:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 10229 transitions. [2018-10-24 23:34:46,448 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 10229 transitions. Word has length 96 [2018-10-24 23:34:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:34:46,450 INFO L481 AbstractCegarLoop]: Abstraction has 7037 states and 10229 transitions. [2018-10-24 23:34:46,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:34:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 10229 transitions. [2018-10-24 23:34:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 23:34:46,458 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:34:46,458 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:34:46,458 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:34:46,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:34:46,459 INFO L82 PathProgramCache]: Analyzing trace with hash -87022815, now seen corresponding path program 1 times [2018-10-24 23:34:46,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:34:46,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:46,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:34:46,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:46,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:34:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:34:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:34:47,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:34:47,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:34:47,058 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:34:47,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:34:47,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:34:47,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:34:47,060 INFO L87 Difference]: Start difference. First operand 7037 states and 10229 transitions. Second operand 6 states. [2018-10-24 23:35:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:35:00,373 INFO L93 Difference]: Finished difference Result 23489 states and 35291 transitions. [2018-10-24 23:35:00,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:35:00,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-24 23:35:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:35:00,477 INFO L225 Difference]: With dead ends: 23489 [2018-10-24 23:35:00,477 INFO L226 Difference]: Without dead ends: 16458 [2018-10-24 23:35:00,516 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:35:00,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16458 states. [2018-10-24 23:35:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16458 to 16369. [2018-10-24 23:35:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16369 states. [2018-10-24 23:35:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16369 states to 16369 states and 22455 transitions. [2018-10-24 23:35:00,913 INFO L78 Accepts]: Start accepts. Automaton has 16369 states and 22455 transitions. Word has length 104 [2018-10-24 23:35:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:35:00,914 INFO L481 AbstractCegarLoop]: Abstraction has 16369 states and 22455 transitions. [2018-10-24 23:35:00,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:35:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 16369 states and 22455 transitions. [2018-10-24 23:35:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 23:35:00,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:35:00,918 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:35:00,918 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:35:00,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:35:00,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1280943624, now seen corresponding path program 1 times [2018-10-24 23:35:00,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:35:00,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:35:00,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:35:00,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:35:00,920 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:35:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:35:01,235 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:35:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:35:01,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:35:01,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:35:01,534 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:35:01,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:35:01,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:35:01,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:35:01,536 INFO L87 Difference]: Start difference. First operand 16369 states and 22455 transitions. Second operand 6 states. [2018-10-24 23:35:15,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:35:15,458 INFO L93 Difference]: Finished difference Result 42327 states and 60127 transitions. [2018-10-24 23:35:15,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:35:15,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-24 23:35:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:35:15,585 INFO L225 Difference]: With dead ends: 42327 [2018-10-24 23:35:15,585 INFO L226 Difference]: Without dead ends: 25964 [2018-10-24 23:35:15,663 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:35:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25964 states. [2018-10-24 23:35:16,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25964 to 25854. [2018-10-24 23:35:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25854 states. [2018-10-24 23:35:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25854 states to 25854 states and 33994 transitions. [2018-10-24 23:35:16,557 INFO L78 Accepts]: Start accepts. Automaton has 25854 states and 33994 transitions. Word has length 115 [2018-10-24 23:35:16,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:35:16,558 INFO L481 AbstractCegarLoop]: Abstraction has 25854 states and 33994 transitions. [2018-10-24 23:35:16,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:35:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 25854 states and 33994 transitions. [2018-10-24 23:35:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-24 23:35:16,566 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:35:16,566 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:35:16,566 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:35:16,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:35:16,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1522182260, now seen corresponding path program 1 times [2018-10-24 23:35:16,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:35:16,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:35:16,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:35:16,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:35:16,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:35:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:35:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:35:17,107 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:35:17,107 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:35:17,108 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-10-24 23:35:17,114 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1887], [1889], [1892], [1900], [1908], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2404], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 23:35:17,169 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:35:17,169 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:35:17,859 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:35:17,862 INFO L272 AbstractInterpreter]: Visited 89 different actions 171 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:35:17,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:35:17,897 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:35:18,740 INFO L232 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 75.13% of their original sizes. [2018-10-24 23:35:18,741 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:35:19,544 INFO L413 sIntCurrentIteration]: We have 171 unified AI predicates [2018-10-24 23:35:19,545 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:35:19,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:35:19,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-10-24 23:35:19,546 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:35:19,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 23:35:19,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 23:35:19,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-10-24 23:35:19,548 INFO L87 Difference]: Start difference. First operand 25854 states and 33994 transitions. Second operand 15 states. [2018-10-24 23:35:32,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 23:35:32,124 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:93) 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: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 23:35:32,129 INFO L168 Benchmark]: Toolchain (without parser) took 89958.10 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.5 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -319.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 23:35:32,130 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 23:35:32,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2035.67 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: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 23:35:32,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 532.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:35:32,133 INFO L168 Benchmark]: Boogie Preprocessor took 334.93 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:35:32,134 INFO L168 Benchmark]: RCFGBuilder took 11512.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 658.7 MB). Peak memory consumption was 658.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:35:32,135 INFO L168 Benchmark]: TraceAbstraction took 75536.54 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 758.6 MB). Free memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: -196.8 MB). Peak memory consumption was 561.8 MB. Max. memory is 7.1 GB. [2018-10-24 23:35:32,141 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 2035.67 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: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 532.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 334.93 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: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11512.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 658.7 MB). Peak memory consumption was 658.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 75536.54 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 758.6 MB). Free memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: -196.8 MB). Peak memory consumption was 561.8 MB. 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...