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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:05:06,733 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:05:06,735 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:05:06,753 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:05:06,753 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:05:06,755 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:05:06,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:05:06,758 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:05:06,761 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:05:06,762 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:05:06,764 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:05:06,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:05:06,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:05:06,769 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:05:06,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:05:06,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:05:06,777 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:05:06,784 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:05:06,787 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:05:06,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:05:06,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:05:06,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:05:06,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:05:06,811 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:05:06,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:05:06,835 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:05:06,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:05:06,836 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:05:06,837 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:05:06,837 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:05:06,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:05:06,837 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:05:06,837 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:05:06,838 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:05:06,838 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:05:06,838 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:05:06,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:05:06,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:05:06,839 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:05:06,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:05:06,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:05:06,840 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:05:06,840 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:05:06,840 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:05:06,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:05:06,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:05:06,841 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:05:06,841 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:05:06,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:05:06,841 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:05:06,841 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:05:06,842 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:05:06,842 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:05:06,842 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:05:06,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:05:06,842 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:05:06,843 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:05:06,843 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:05:06,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:05:06,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:05:06,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:05:06,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:05:06,912 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:05:06,913 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c [2018-10-24 19:05:06,988 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c5693a06b/fedd97c0467d488abc7e550ee0360fad/FLAG1b327b80e [2018-10-24 19:05:07,880 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:05:07,883 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label27_false-unreach-call.c [2018-10-24 19:05:07,925 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c5693a06b/fedd97c0467d488abc7e550ee0360fad/FLAG1b327b80e [2018-10-24 19:05:07,946 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c5693a06b/fedd97c0467d488abc7e550ee0360fad [2018-10-24 19:05:07,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:05:07,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:05:07,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:05:07,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:05:07,969 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:05:07,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:07" (1/1) ... [2018-10-24 19:05:07,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296194a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:07, skipping insertion in model container [2018-10-24 19:05:07,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:07" (1/1) ... [2018-10-24 19:05:07,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:05:08,256 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:05:10,244 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:05:10,249 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:05:11,449 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:05:11,503 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:05:11,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11 WrapperNode [2018-10-24 19:05:11,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:05:11,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:05:11,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:05:11,506 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:05:11,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:11,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:05:12,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:05:12,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:05:12,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:05:12,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (1/1) ... [2018-10-24 19:05:12,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:05:12,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:05:12,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:05:12,821 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:05:12,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (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 19:05:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:05:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:05:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 19:05:12,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 19:05:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 19:05:12,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 19:05:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 19:05:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 19:05:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 19:05:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 19:05:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 19:05:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 19:05:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:05:12,898 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:05:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:05:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:05:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:05:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:05:32,312 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:05:32,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:32 BoogieIcfgContainer [2018-10-24 19:05:32,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:05:32,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:05:32,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:05:32,318 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:05:32,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:05:07" (1/3) ... [2018-10-24 19:05:32,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6da141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:05:32, skipping insertion in model container [2018-10-24 19:05:32,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:11" (2/3) ... [2018-10-24 19:05:32,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6da141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:05:32, skipping insertion in model container [2018-10-24 19:05:32,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:32" (3/3) ... [2018-10-24 19:05:32,322 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label27_false-unreach-call.c [2018-10-24 19:05:32,332 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:05:32,343 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:05:32,360 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:05:32,414 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:05:32,414 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:05:32,414 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:05:32,414 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:05:32,414 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:05:32,414 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:05:32,415 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:05:32,415 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:05:32,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 19:05:32,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-24 19:05:32,479 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:05:32,480 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:05:32,483 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:05:32,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:05:32,489 INFO L82 PathProgramCache]: Analyzing trace with hash 510178580, now seen corresponding path program 1 times [2018-10-24 19:05:32,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:05:32,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:32,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:05:32,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:32,540 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:05:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:05:32,903 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 19:05:32,914 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 19:05:32,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:05:32,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:05:32,917 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:05:32,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:05:32,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:05:32,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:05:32,952 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-24 19:05:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:05:57,635 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-10-24 19:05:57,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:05:57,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-24 19:05:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:05:57,697 INFO L225 Difference]: With dead ends: 6465 [2018-10-24 19:05:57,697 INFO L226 Difference]: Without dead ends: 4681 [2018-10-24 19:05:57,716 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 19:05:57,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-10-24 19:05:57,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-10-24 19:05:57,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-10-24 19:05:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-10-24 19:05:57,946 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 34 [2018-10-24 19:05:57,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:05:57,946 INFO L481 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-10-24 19:05:57,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:05:57,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-10-24 19:05:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-24 19:05:57,953 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:05:57,953 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 19:05:57,953 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:05:57,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:05:57,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1924817033, now seen corresponding path program 1 times [2018-10-24 19:05:57,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:05:57,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:57,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:05:57,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:05:57,956 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:05:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:05:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:05:58,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:05:58,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:05:58,306 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:05:58,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:05:58,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:05:58,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:05:58,309 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-10-24 19:06:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:06:25,138 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-10-24 19:06:25,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:06:25,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-10-24 19:06:25,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:06:25,186 INFO L225 Difference]: With dead ends: 12097 [2018-10-24 19:06:25,186 INFO L226 Difference]: Without dead ends: 8903 [2018-10-24 19:06:25,199 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:06:25,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-10-24 19:06:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-10-24 19:06:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-10-24 19:06:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-10-24 19:06:25,412 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 106 [2018-10-24 19:06:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:06:25,412 INFO L481 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-10-24 19:06:25,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:06:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-10-24 19:06:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 19:06:25,417 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:25,418 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 19:06:25,418 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:25,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:25,418 INFO L82 PathProgramCache]: Analyzing trace with hash 289117920, now seen corresponding path program 1 times [2018-10-24 19:06:25,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:25,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:25,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:25,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:25,420 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:25,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:25,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:06:25,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:25,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:06:25,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:06:25,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:06:25,622 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-10-24 19:06:52,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:06:52,040 INFO L93 Difference]: Finished difference Result 29431 states and 43425 transitions. [2018-10-24 19:06:52,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:06:52,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-24 19:06:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:06:52,124 INFO L225 Difference]: With dead ends: 29431 [2018-10-24 19:06:52,124 INFO L226 Difference]: Without dead ends: 20591 [2018-10-24 19:06:52,165 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 19:06:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20591 states. [2018-10-24 19:06:52,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20591 to 20435. [2018-10-24 19:06:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20435 states. [2018-10-24 19:06:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20435 states to 20435 states and 28676 transitions. [2018-10-24 19:06:52,631 INFO L78 Accepts]: Start accepts. Automaton has 20435 states and 28676 transitions. Word has length 108 [2018-10-24 19:06:52,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:06:52,632 INFO L481 AbstractCegarLoop]: Abstraction has 20435 states and 28676 transitions. [2018-10-24 19:06:52,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:06:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand 20435 states and 28676 transitions. [2018-10-24 19:06:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 19:06:52,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:06:52,635 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:06:52,635 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:06:52,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:06:52,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1954797511, now seen corresponding path program 1 times [2018-10-24 19:06:52,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:06:52,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:52,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:06:52,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:06:52,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:06:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:06:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:06:53,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:06:53,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:06:53,085 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:06:53,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:06:53,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:06:53,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:06:53,088 INFO L87 Difference]: Start difference. First operand 20435 states and 28676 transitions. Second operand 6 states. [2018-10-24 19:07:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:07:14,324 INFO L93 Difference]: Finished difference Result 62260 states and 89704 transitions. [2018-10-24 19:07:14,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:07:14,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-10-24 19:07:14,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:07:14,472 INFO L225 Difference]: With dead ends: 62260 [2018-10-24 19:07:14,472 INFO L226 Difference]: Without dead ends: 41831 [2018-10-24 19:07:14,535 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:07:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41831 states. [2018-10-24 19:07:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41831 to 41494. [2018-10-24 19:07:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41494 states. [2018-10-24 19:07:15,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41494 states to 41494 states and 57737 transitions. [2018-10-24 19:07:15,920 INFO L78 Accepts]: Start accepts. Automaton has 41494 states and 57737 transitions. Word has length 116 [2018-10-24 19:07:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:07:15,921 INFO L481 AbstractCegarLoop]: Abstraction has 41494 states and 57737 transitions. [2018-10-24 19:07:15,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:07:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 41494 states and 57737 transitions. [2018-10-24 19:07:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 19:07:15,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:07:15,924 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 19:07:15,925 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:07:15,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:07:15,928 INFO L82 PathProgramCache]: Analyzing trace with hash -982448335, now seen corresponding path program 1 times [2018-10-24 19:07:15,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:07:15,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:15,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:07:15,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:15,929 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:07:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:07:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:07:16,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:07:16,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:07:16,261 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:07:16,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:07:16,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:07:16,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:07:16,262 INFO L87 Difference]: Start difference. First operand 41494 states and 57737 transitions. Second operand 5 states. [2018-10-24 19:07:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:07:53,618 INFO L93 Difference]: Finished difference Result 125829 states and 180377 transitions. [2018-10-24 19:07:53,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 19:07:53,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2018-10-24 19:07:53,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:07:53,930 INFO L225 Difference]: With dead ends: 125829 [2018-10-24 19:07:53,931 INFO L226 Difference]: Without dead ends: 84341 [2018-10-24 19:07:54,005 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:07:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84341 states. [2018-10-24 19:07:55,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84341 to 83141. [2018-10-24 19:07:55,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83141 states. [2018-10-24 19:07:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83141 states to 83141 states and 107155 transitions. [2018-10-24 19:07:55,550 INFO L78 Accepts]: Start accepts. Automaton has 83141 states and 107155 transitions. Word has length 136 [2018-10-24 19:07:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:07:55,551 INFO L481 AbstractCegarLoop]: Abstraction has 83141 states and 107155 transitions. [2018-10-24 19:07:55,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:07:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 83141 states and 107155 transitions. [2018-10-24 19:07:55,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-24 19:07:55,556 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:07:55,556 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:07:55,557 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:07:55,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:07:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash -674403138, now seen corresponding path program 1 times [2018-10-24 19:07:55,560 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:07:55,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:55,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:07:55,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:07:55,561 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:07:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:07:55,889 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:07:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:07:56,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:07:56,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:07:56,304 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:07:56,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:07:56,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:07:56,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:07:56,305 INFO L87 Difference]: Start difference. First operand 83141 states and 107155 transitions. Second operand 6 states. [2018-10-24 19:08:14,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:08:14,566 INFO L93 Difference]: Finished difference Result 188087 states and 253002 transitions. [2018-10-24 19:08:14,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:08:14,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2018-10-24 19:08:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:08:14,941 INFO L225 Difference]: With dead ends: 188087 [2018-10-24 19:08:14,941 INFO L226 Difference]: Without dead ends: 104952 [2018-10-24 19:08:15,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:08:15,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104952 states. [2018-10-24 19:08:17,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104952 to 104189. [2018-10-24 19:08:17,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104189 states. [2018-10-24 19:08:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104189 states to 104189 states and 134663 transitions. [2018-10-24 19:08:17,657 INFO L78 Accepts]: Start accepts. Automaton has 104189 states and 134663 transitions. Word has length 199 [2018-10-24 19:08:17,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:08:17,657 INFO L481 AbstractCegarLoop]: Abstraction has 104189 states and 134663 transitions. [2018-10-24 19:08:17,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:08:17,657 INFO L276 IsEmpty]: Start isEmpty. Operand 104189 states and 134663 transitions. [2018-10-24 19:08:17,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-10-24 19:08:17,670 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:08:17,671 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:08:17,671 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:08:17,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:08:17,672 INFO L82 PathProgramCache]: Analyzing trace with hash 924629389, now seen corresponding path program 1 times [2018-10-24 19:08:17,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:08:17,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:17,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:08:17,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:08:17,673 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:08:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:08:18,157 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:08:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 19:08:18,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:08:18,493 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:08:18,494 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 522 with the following transitions: [2018-10-24 19:08:18,499 INFO L202 CegarAbsIntRunner]: [0], [1], [4196], [4200], [4204], [4208], [4212], [4216], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4279], [4290], [4294], [4298], [4309], [4313], [4317], [4321], [4325], [4329], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4396], [4400], [4404], [4408], [4412], [4416], [4420], [4431], [4435], [4439], [4443], [4454], [4458], [4462], [4466], [4470], [4474], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4553], [4557], [4561], [4565], [4569], [4573], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4620], [4624], [4628], [4632], [4636], [4647], [4651], [4655], [4659], [4663], [4667], [4671], [4675], [4679], [4690], [4694], [4698], [4709], [4713], [4717], [4721], [4725], [4729], [4733], [4737], [4741], [4745], [4749], [4753], [4764], [4768], [4772], [4776], [4780], [4784], [4788], [4792], [4803], [4807], [4811], [4815], [4819], [4823], [4827], [4831], [4835], [4839], [4843], [4847], [4858], [4862], [4873], [4877], [4881], [4885], [4896], [4900], [4904], [4908], [4912], [4916], [4920], [4924], [4935], [4939], [4943], [4954], [4958], [4962], [4966], [4970], [4974], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5093], [5226], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5398], [5400], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6604], [6608], [6619], [6623], [6634], [6645], [6649], [6653], [6657], [6661], [6665], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6712], [6716], [6727], [6731], [6735], [6739], [6743], [6747], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6801], [6802], [6806], [6810], [6816], [6820], [6822], [6835], [6836], [6837], [6838], [6839], [6841], [6842] [2018-10-24 19:08:18,625 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:08:18,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:08:36,532 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 19:08:36,634 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:08:36,636 INFO L272 AbstractInterpreter]: Visited 488 different actions 488 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 19:08:36,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:08:36,659 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:08:41,572 INFO L232 lantSequenceWeakener]: Weakened 513 states. On average, predicates are now at 75.13% of their original sizes. [2018-10-24 19:08:41,573 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:08:42,476 INFO L413 sIntCurrentIteration]: We have 520 unified AI predicates [2018-10-24 19:08:42,477 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:08:42,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:08:42,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2018-10-24 19:08:42,478 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:08:42,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 19:08:42,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 19:08:42,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:08:42,480 INFO L87 Difference]: Start difference. First operand 104189 states and 134663 transitions. Second operand 9 states. Received shutdown request... [2018-10-24 19:08:51,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:08:51,128 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:08:51,135 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:08:51,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:08:51 BoogieIcfgContainer [2018-10-24 19:08:51,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:08:51,137 INFO L168 Benchmark]: Toolchain (without parser) took 223177.40 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 780.8 MB. Max. memory is 7.1 GB. [2018-10-24 19:08:51,138 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:08:51,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3541.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 978.6 MB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:08:51,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 766.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.1 MB). Free memory was 978.6 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:08:51,141 INFO L168 Benchmark]: Boogie Preprocessor took 548.94 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:08:51,143 INFO L168 Benchmark]: RCFGBuilder took 19492.43 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 180.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 478.1 MB). Peak memory consumption was 661.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:08:51,145 INFO L168 Benchmark]: TraceAbstraction took 198821.62 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:08:51,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3541.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 978.6 MB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 766.17 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.1 MB). Free memory was 978.6 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 548.94 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 61.7 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 19492.43 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 180.4 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 478.1 MB). Peak memory consumption was 661.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198821.62 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.2 GB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 97). Cancelled while BasicCegarLoop was constructing difference of abstraction (104189states) and FLOYD_HOARE automaton (currently 7 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (230 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 198.7s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 164.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4407 SDtfs, 42814 SDslu, 4763 SDs, 0 SdLazy, 59424 SolverSat, 15832 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 136.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 576 GetRequests, 529 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104189occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.998292899408284 AbsIntWeakeningRatio, 0.04807692307692308 AbsIntAvgWeakeningVarsNumRemoved, 1075.5134615384616 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 6.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 3994 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1213 ConstructedInterpolants, 0 QuantifiedInterpolants, 1280030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 139/162 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown