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/Problem15_label22_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:39:39,856 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:39:39,860 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:39:39,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:39:39,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:39:39,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:39:39,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:39:39,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:39:39,887 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:39:39,888 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:39:39,889 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:39:39,890 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:39:39,892 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:39:39,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:39:39,894 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:39:39,895 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:39:39,896 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:39:39,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:39:39,908 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:39:39,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:39:39,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:39:39,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:39:39,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:39:39,922 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 23:39:39,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:39:39,940 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:39:39,941 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:39:39,941 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:39:39,941 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:39:39,941 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:39:39,941 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:39:39,942 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:39:39,942 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:39:39,942 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:39:39,942 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:39:39,942 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:39:39,943 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:39:39,943 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:39:39,944 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:39:39,944 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:39:39,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:39:39,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:39:39,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:39:39,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:39:39,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:39:39,945 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:39:39,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:39:39,945 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:39:39,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:39:39,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:39:39,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:39:39,946 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:39:39,946 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:39:39,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:39:39,947 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:39:39,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:39:39,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:39:39,947 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:39:39,948 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:39:39,948 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:39:40,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:39:40,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:39:40,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:39:40,028 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:39:40,029 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:39:40,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label22_false-unreach-call.c [2018-10-24 23:39:40,099 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/66f133546/590a0785771c41d18a103c04d64e1d9a/FLAGdcbffe959 [2018-10-24 23:39:40,757 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:39:40,759 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label22_false-unreach-call.c [2018-10-24 23:39:40,783 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/66f133546/590a0785771c41d18a103c04d64e1d9a/FLAGdcbffe959 [2018-10-24 23:39:40,805 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/66f133546/590a0785771c41d18a103c04d64e1d9a [2018-10-24 23:39:40,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:39:40,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:39:40,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:39:40,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:39:40,828 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:39:40,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:40" (1/1) ... [2018-10-24 23:39:40,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c656ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:40, skipping insertion in model container [2018-10-24 23:39:40,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:40" (1/1) ... [2018-10-24 23:39:40,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:39:40,953 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:39:41,839 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:39:41,844 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:39:42,146 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:39:42,168 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:39:42,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42 WrapperNode [2018-10-24 23:39:42,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:39:42,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:39:42,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:39:42,170 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:39:42,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:39:42,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:39:42,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:39:42,591 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:39:42,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (1/1) ... [2018-10-24 23:39:42,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:39:42,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:39:42,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:39:42,860 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:39:42,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (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 23:39:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:39:42,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:39:42,932 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:39:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:39:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:39:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:39:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:39:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:39:42,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:39:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:39:48,931 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:39:48,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:48 BoogieIcfgContainer [2018-10-24 23:39:48,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:39:48,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:39:48,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:39:48,938 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:39:48,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:39:40" (1/3) ... [2018-10-24 23:39:48,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcc7680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:48, skipping insertion in model container [2018-10-24 23:39:48,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:42" (2/3) ... [2018-10-24 23:39:48,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcc7680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:48, skipping insertion in model container [2018-10-24 23:39:48,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:48" (3/3) ... [2018-10-24 23:39:48,941 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label22_false-unreach-call.c [2018-10-24 23:39:48,952 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:39:48,960 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:39:48,977 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:39:49,018 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:39:49,019 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:39:49,019 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:39:49,019 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:39:49,019 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:39:49,019 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:39:49,019 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:39:49,020 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:39:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 23:39:49,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 23:39:49,064 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:39:49,065 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:39:49,068 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:39:49,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:39:49,073 INFO L82 PathProgramCache]: Analyzing trace with hash 417311457, now seen corresponding path program 1 times [2018-10-24 23:39:49,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:39:49,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:39:49,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:39:49,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:39:49,121 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:39:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:39:49,546 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 23:39:49,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:39:49,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:39:49,550 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:39:49,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:39:49,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:39:49,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:39:49,575 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 23:40:02,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:02,401 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 23:40:02,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:40:02,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-24 23:40:02,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:02,433 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 23:40:02,433 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 23:40:02,443 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:40:02,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 23:40:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-10-24 23:40:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-10-24 23:40:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-10-24 23:40:02,567 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 25 [2018-10-24 23:40:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:02,568 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-10-24 23:40:02,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:40:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-10-24 23:40:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-10-24 23:40:02,574 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:02,574 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:40:02,575 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:02,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash -764927732, now seen corresponding path program 1 times [2018-10-24 23:40:02,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:02,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:02,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:02,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:02,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:02,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:02,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:40:02,848 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:02,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:40:02,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:40:02,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:40:02,851 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-10-24 23:40:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:12,477 INFO L93 Difference]: Finished difference Result 3240 states and 5580 transitions. [2018-10-24 23:40:12,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:40:12,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2018-10-24 23:40:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:12,498 INFO L225 Difference]: With dead ends: 3240 [2018-10-24 23:40:12,499 INFO L226 Difference]: Without dead ends: 2155 [2018-10-24 23:40:12,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:40:12,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2018-10-24 23:40:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2114. [2018-10-24 23:40:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-10-24 23:40:12,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-10-24 23:40:12,607 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 98 [2018-10-24 23:40:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:12,608 INFO L481 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-10-24 23:40:12,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:40:12,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-10-24 23:40:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-24 23:40:12,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:12,613 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:40:12,613 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:12,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:12,614 INFO L82 PathProgramCache]: Analyzing trace with hash -349048548, now seen corresponding path program 1 times [2018-10-24 23:40:12,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:12,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:12,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:12,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:12,615 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:12,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:12,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:40:12,872 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:12,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:40:12,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:40:12,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:40:12,874 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-10-24 23:40:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:20,631 INFO L93 Difference]: Finished difference Result 7944 states and 12443 transitions. [2018-10-24 23:40:20,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:40:20,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2018-10-24 23:40:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:20,674 INFO L225 Difference]: With dead ends: 7944 [2018-10-24 23:40:20,674 INFO L226 Difference]: Without dead ends: 5836 [2018-10-24 23:40:20,701 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 23:40:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5836 states. [2018-10-24 23:40:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5836 to 5834. [2018-10-24 23:40:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5834 states. [2018-10-24 23:40:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8173 transitions. [2018-10-24 23:40:20,886 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8173 transitions. Word has length 106 [2018-10-24 23:40:20,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:20,887 INFO L481 AbstractCegarLoop]: Abstraction has 5834 states and 8173 transitions. [2018-10-24 23:40:20,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:40:20,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8173 transitions. [2018-10-24 23:40:20,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-24 23:40:20,905 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:20,905 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:20,905 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:20,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:20,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1121522118, now seen corresponding path program 1 times [2018-10-24 23:40:20,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:20,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:20,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:20,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:20,907 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:21,266 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:40:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 36 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:40:21,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:40:21,334 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:40:21,335 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-10-24 23:40:21,337 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [173], [175], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:40:21,393 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:40:21,394 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:40:22,146 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:40:22,148 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:40:22,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:22,192 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:40:22,955 INFO L232 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 77.49% of their original sizes. [2018-10-24 23:40:22,956 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:40:23,144 INFO L413 sIntCurrentIteration]: We have 194 unified AI predicates [2018-10-24 23:40:23,144 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:40:23,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:40:23,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-24 23:40:23,146 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:23,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:40:23,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:40:23,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:40:23,147 INFO L87 Difference]: Start difference. First operand 5834 states and 8173 transitions. Second operand 6 states. [2018-10-24 23:40:40,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:40:40,526 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: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 23:40:40,537 INFO L168 Benchmark]: Toolchain (without parser) took 59718.81 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 783.6 MB. Max. memory is 7.1 GB. [2018-10-24 23:40:40,539 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:40:40,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1347.68 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:40:40,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 420.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -866.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 23:40:40,542 INFO L168 Benchmark]: Boogie Preprocessor took 269.15 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:40:40,542 INFO L168 Benchmark]: RCFGBuilder took 6073.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 313.5 MB). Peak memory consumption was 313.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:40:40,543 INFO L168 Benchmark]: TraceAbstraction took 51602.62 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 1.8 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 465.6 MB. Max. memory is 7.1 GB. [2018-10-24 23:40:40,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1347.68 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 420.66 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -866.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 269.15 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6073.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 313.5 MB). Peak memory consumption was 313.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51602.62 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 1.8 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 465.6 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...