java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:53:14,924 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:53:14,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:53:14,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:53:14,939 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:53:14,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:53:14,941 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:53:14,943 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:53:14,945 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:53:14,946 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:53:14,947 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:53:14,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:53:14,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:53:14,950 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:53:14,951 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:53:14,952 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:53:14,953 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:53:14,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:53:14,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:53:14,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:53:14,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:53:14,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:53:14,967 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:53:14,977 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 23:53:15,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:53:15,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:53:15,008 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:53:15,008 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:53:15,008 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:53:15,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:53:15,009 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:53:15,009 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:53:15,009 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:53:15,010 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:53:15,010 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:53:15,010 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:53:15,010 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:53:15,010 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:53:15,011 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:53:15,011 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:53:15,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:53:15,013 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:53:15,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:53:15,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:53:15,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:53:15,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:53:15,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:53:15,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:53:15,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:53:15,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:53:15,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:53:15,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:53:15,016 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:53:15,016 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:53:15,016 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:53:15,016 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:53:15,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:53:15,017 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:53:15,017 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:53:15,017 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:53:15,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:53:15,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:53:15,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:53:15,100 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:53:15,100 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:53:15,101 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label55_false-unreach-call.c [2018-10-24 23:53:15,161 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7abfbc470/4442d577c8714e2ab3a9a52763e32667/FLAGc94cf0d06 [2018-10-24 23:53:15,950 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:53:15,951 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label55_false-unreach-call.c [2018-10-24 23:53:15,979 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7abfbc470/4442d577c8714e2ab3a9a52763e32667/FLAGc94cf0d06 [2018-10-24 23:53:16,001 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7abfbc470/4442d577c8714e2ab3a9a52763e32667 [2018-10-24 23:53:16,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:53:16,017 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:53:16,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:53:16,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:53:16,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:53:16,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:53:16" (1/1) ... [2018-10-24 23:53:16,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9de6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:16, skipping insertion in model container [2018-10-24 23:53:16,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:53:16" (1/1) ... [2018-10-24 23:53:16,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:53:16,171 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:53:17,260 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:53:17,265 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:53:17,762 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:53:17,789 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:53:17,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17 WrapperNode [2018-10-24 23:53:17,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:53:17,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:53:17,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:53:17,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:53:17,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:17,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:53:18,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:53:18,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:53:18,234 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:53:18,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (1/1) ... [2018-10-24 23:53:18,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:53:18,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:53:18,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:53:18,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:53:18,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (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 23:53:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:53:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:53:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:53:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:53:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:53:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:53:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:53:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:53:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:53:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:53:27,042 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:53:27,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:53:27 BoogieIcfgContainer [2018-10-24 23:53:27,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:53:27,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:53:27,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:53:27,049 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:53:27,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:53:16" (1/3) ... [2018-10-24 23:53:27,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24abf510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:53:27, skipping insertion in model container [2018-10-24 23:53:27,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:53:17" (2/3) ... [2018-10-24 23:53:27,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24abf510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:53:27, skipping insertion in model container [2018-10-24 23:53:27,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:53:27" (3/3) ... [2018-10-24 23:53:27,053 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label55_false-unreach-call.c [2018-10-24 23:53:27,064 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:53:27,074 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:53:27,092 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:53:27,139 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:53:27,139 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:53:27,139 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:53:27,139 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:53:27,140 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:53:27,140 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:53:27,140 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:53:27,140 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:53:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 23:53:27,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-24 23:53:27,206 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:53:27,207 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:53:27,212 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:53:27,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:53:27,219 INFO L82 PathProgramCache]: Analyzing trace with hash 795838455, now seen corresponding path program 1 times [2018-10-24 23:53:27,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:53:27,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:27,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:53:27,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:27,273 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:53:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:53:27,648 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:53:27,710 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 23:53:27,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:53:27,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:53:27,712 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:53:27,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:53:27,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:53:27,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:53:27,730 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 23:53:34,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:53:34,664 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 23:53:34,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:53:34,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-10-24 23:53:34,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:53:34,697 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 23:53:34,697 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 23:53:34,707 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:53:34,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 23:53:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 23:53:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 23:53:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-24 23:53:34,850 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 19 [2018-10-24 23:53:34,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:53:34,850 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-24 23:53:34,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:53:34,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-24 23:53:34,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 23:53:34,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:53:34,863 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:53:34,863 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:53:34,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:53:34,864 INFO L82 PathProgramCache]: Analyzing trace with hash 644505201, now seen corresponding path program 1 times [2018-10-24 23:53:34,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:53:34,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:34,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:53:34,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:34,866 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:53:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:53:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:53:35,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:53:35,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:53:35,255 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:53:35,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:53:35,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:53:35,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:53:35,258 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-10-24 23:53:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:53:44,362 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-10-24 23:53:44,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:53:44,363 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-24 23:53:44,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:53:44,384 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 23:53:44,384 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 23:53:44,390 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:53:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 23:53:44,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-10-24 23:53:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-10-24 23:53:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-10-24 23:53:44,508 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 108 [2018-10-24 23:53:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:53:44,510 INFO L481 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-10-24 23:53:44,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:53:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-10-24 23:53:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 23:53:44,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:53:44,525 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:44,525 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:53:44,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:53:44,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1531957100, now seen corresponding path program 1 times [2018-10-24 23:53:44,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:53:44,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:44,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:53:44,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:44,530 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:53:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:53:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:53:44,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:53:44,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:53:44,835 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:53:44,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:53:44,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:53:44,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:53:44,837 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-10-24 23:53:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:53:53,761 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-10-24 23:53:53,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:53:53,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-10-24 23:53:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:53:53,808 INFO L225 Difference]: With dead ends: 10194 [2018-10-24 23:53:53,809 INFO L226 Difference]: Without dead ends: 7272 [2018-10-24 23:53:53,826 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:53:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-10-24 23:53:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-10-24 23:53:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-10-24 23:53:54,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-10-24 23:53:54,073 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 155 [2018-10-24 23:53:54,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:53:54,074 INFO L481 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-10-24 23:53:54,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:53:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-10-24 23:53:54,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 23:53:54,080 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:53:54,080 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:54,080 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:53:54,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:53:54,081 INFO L82 PathProgramCache]: Analyzing trace with hash -318450672, now seen corresponding path program 1 times [2018-10-24 23:53:54,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:53:54,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:54,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:53:54,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:53:54,083 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:53:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:53:54,439 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:53:54,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:53:54,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:53:54,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:53:54,779 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:53:54,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:53:54,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:53:54,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:53:54,780 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-10-24 23:54:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:54:00,182 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-10-24 23:54:00,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:54:00,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-24 23:54:00,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:54:00,233 INFO L225 Difference]: With dead ends: 17365 [2018-10-24 23:54:00,233 INFO L226 Difference]: Without dead ends: 10163 [2018-10-24 23:54:00,260 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 23:54:00,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-10-24 23:54:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-10-24 23:54:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-10-24 23:54:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-10-24 23:54:00,492 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 157 [2018-10-24 23:54:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:54:00,493 INFO L481 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-10-24 23:54:00,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:54:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-10-24 23:54:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-24 23:54:00,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:54:00,499 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:54:00,499 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:54:00,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:54:00,499 INFO L82 PathProgramCache]: Analyzing trace with hash 950100659, now seen corresponding path program 1 times [2018-10-24 23:54:00,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:54:00,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:54:00,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:54:00,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:54:00,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:54:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:54:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-24 23:54:00,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:54:00,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:54:00,740 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:54:00,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:54:00,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:54:00,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:54:00,741 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-10-24 23:54:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:54:09,199 INFO L93 Difference]: Finished difference Result 28811 states and 41798 transitions. [2018-10-24 23:54:09,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:54:09,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2018-10-24 23:54:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:54:09,281 INFO L225 Difference]: With dead ends: 28811 [2018-10-24 23:54:09,281 INFO L226 Difference]: Without dead ends: 18709 [2018-10-24 23:54:09,329 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 23:54:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18709 states. [2018-10-24 23:54:09,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18709 to 18709. [2018-10-24 23:54:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18709 states. [2018-10-24 23:54:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18709 states to 18709 states and 25926 transitions. [2018-10-24 23:54:09,714 INFO L78 Accepts]: Start accepts. Automaton has 18709 states and 25926 transitions. Word has length 215 [2018-10-24 23:54:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:54:09,714 INFO L481 AbstractCegarLoop]: Abstraction has 18709 states and 25926 transitions. [2018-10-24 23:54:09,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:54:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 18709 states and 25926 transitions. [2018-10-24 23:54:09,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-10-24 23:54:09,729 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:54:09,729 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:54:09,729 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:54:09,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:54:09,730 INFO L82 PathProgramCache]: Analyzing trace with hash 953625931, now seen corresponding path program 1 times [2018-10-24 23:54:09,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:54:09,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:54:09,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:54:09,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:54:09,731 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:54:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:54:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 116 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:54:10,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:54:10,120 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:54:10,121 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-10-24 23:54:10,124 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1675], [1677], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 23:54:10,197 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:54:10,197 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:54:10,775 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:54:10,777 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:54:10,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:54:10,818 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:54:11,498 INFO L232 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 77.32% of their original sizes. [2018-10-24 23:54:11,499 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:54:11,751 INFO L413 sIntCurrentIteration]: We have 258 unified AI predicates [2018-10-24 23:54:11,751 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:54:11,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:54:11,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-24 23:54:11,753 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:54:11,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:54:11,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:54:11,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:54:11,755 INFO L87 Difference]: Start difference. First operand 18709 states and 25926 transitions. Second operand 6 states. [2018-10-24 23:54:30,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:54:30,261 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-24 23:54:30,267 INFO L168 Benchmark]: Toolchain (without parser) took 74252.17 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -522.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 23:54:30,268 INFO L168 Benchmark]: CDTParser took 0.19 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 23:54:30,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1768.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:54:30,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 441.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -956.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:54:30,271 INFO L168 Benchmark]: Boogie Preprocessor took 200.25 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:54:30,272 INFO L168 Benchmark]: RCFGBuilder took 8610.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 525.5 MB). Peak memory consumption was 525.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:54:30,273 INFO L168 Benchmark]: TraceAbstraction took 63220.29 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -253.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 23:54:30,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1768.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 441.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -956.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 200.25 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8610.72 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 525.5 MB). Peak memory consumption was 525.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 63220.29 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -253.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...