java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:22:11,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:22:11,975 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:22:11,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:22:11,995 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:22:11,996 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:22:11,999 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:22:12,001 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:22:12,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:22:12,006 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:22:12,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:22:12,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:22:12,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:22:12,011 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:22:12,017 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:22:12,018 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:22:12,019 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:22:12,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:22:12,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:22:12,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:22:12,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:22:12,027 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:22:12,033 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:22:12,033 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:22:12,033 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:22:12,034 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:22:12,035 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:22:12,036 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:22:12,037 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:22:12,040 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:22:12,040 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:22:12,041 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:22:12,041 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:22:12,042 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:22:12,044 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:22:12,045 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:22:12,046 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:22:12,073 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:22:12,073 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:22:12,074 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:22:12,074 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:22:12,074 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:22:12,075 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:22:12,075 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:22:12,075 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:22:12,075 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:22:12,076 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:22:12,076 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:22:12,076 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:22:12,076 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:22:12,077 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:22:12,077 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:22:12,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:22:12,079 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:22:12,079 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:22:12,079 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:22:12,079 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:22:12,079 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:22:12,080 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:22:12,080 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:22:12,080 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:22:12,080 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:22:12,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:22:12,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:22:12,081 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:22:12,081 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:22:12,082 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:22:12,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:22:12,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:22:12,082 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:22:12,082 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:22:12,083 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:22:12,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:22:12,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:22:12,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:22:12,170 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:22:12,170 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:22:12,171 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-11-07 20:22:12,251 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b723a222d/51c0af5c5c2d455eb4012969bd489123/FLAGd9d4450dd [2018-11-07 20:22:13,039 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:22:13,040 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label47_true-unreach-call.c [2018-11-07 20:22:13,074 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b723a222d/51c0af5c5c2d455eb4012969bd489123/FLAGd9d4450dd [2018-11-07 20:22:13,093 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b723a222d/51c0af5c5c2d455eb4012969bd489123 [2018-11-07 20:22:13,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:22:13,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:22:13,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:22:13,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:22:13,113 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:22:13,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:22:13" (1/1) ... [2018-11-07 20:22:13,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72185209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:13, skipping insertion in model container [2018-11-07 20:22:13,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:22:13" (1/1) ... [2018-11-07 20:22:13,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:22:13,282 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:22:14,547 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:22:14,551 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:22:15,160 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:22:15,196 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:22:15,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15 WrapperNode [2018-11-07 20:22:15,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:22:15,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:22:15,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:22:15,199 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:22:15,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:22:15,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:22:15,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:22:15,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:22:15,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... [2018-11-07 20:22:15,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:22:15,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:22:15,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:22:15,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:22:15,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 20:22:15,919 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:22:15,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:22:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:22:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:22:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:22:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:22:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:22:15,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:22:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:22:15,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:22:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:22:15,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:22:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:22:15,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:22:15,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:22:25,237 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:22:25,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:25 BoogieIcfgContainer [2018-11-07 20:22:25,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:22:25,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:22:25,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:22:25,242 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:22:25,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:22:13" (1/3) ... [2018-11-07 20:22:25,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c8ebd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:22:25, skipping insertion in model container [2018-11-07 20:22:25,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:22:15" (2/3) ... [2018-11-07 20:22:25,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c8ebd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:22:25, skipping insertion in model container [2018-11-07 20:22:25,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:22:25" (3/3) ... [2018-11-07 20:22:25,246 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label47_true-unreach-call.c [2018-11-07 20:22:25,257 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:22:25,267 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:22:25,286 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:22:25,347 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:22:25,347 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:22:25,347 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:22:25,347 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:22:25,347 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:22:25,348 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:22:25,348 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:22:25,348 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:22:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 20:22:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-07 20:22:25,419 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:22:25,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:22:25,422 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:22:25,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:22:25,430 INFO L82 PathProgramCache]: Analyzing trace with hash 986841587, now seen corresponding path program 1 times [2018-11-07 20:22:25,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:22:25,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:25,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:22:25,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:25,499 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:22:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:22:26,086 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:22:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:22:26,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:22:26,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:22:26,208 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:22:26,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:22:26,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:22:26,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:22:26,238 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 20:22:34,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:22:34,513 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 20:22:34,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:22:34,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-11-07 20:22:34,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:22:34,562 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 20:22:34,562 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 20:22:34,580 INFO L604 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 [2018-11-07 20:22:34,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 20:22:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 20:22:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 20:22:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-11-07 20:22:34,764 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 45 [2018-11-07 20:22:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:22:34,764 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-11-07 20:22:34,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:22:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-11-07 20:22:34,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-07 20:22:34,771 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:22:34,772 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, 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] [2018-11-07 20:22:34,772 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:22:34,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:22:34,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1872718060, now seen corresponding path program 1 times [2018-11-07 20:22:34,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:22:34,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:34,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:22:34,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:34,775 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:22:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:22:35,101 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:22:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:22:35,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:22:35,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:22:35,228 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:22:35,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:22:35,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:22:35,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:22:35,230 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-11-07 20:22:44,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:22:44,620 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-11-07 20:22:44,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:22:44,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-07 20:22:44,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:22:44,644 INFO L225 Difference]: With dead ends: 4818 [2018-11-07 20:22:44,645 INFO L226 Difference]: Without dead ends: 3220 [2018-11-07 20:22:44,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:22:44,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-11-07 20:22:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-11-07 20:22:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-11-07 20:22:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-11-07 20:22:44,743 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 119 [2018-11-07 20:22:44,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:22:44,744 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-11-07 20:22:44,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:22:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-11-07 20:22:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-07 20:22:44,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:22:44,748 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, 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] [2018-11-07 20:22:44,748 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:22:44,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:22:44,752 INFO L82 PathProgramCache]: Analyzing trace with hash 715820005, now seen corresponding path program 1 times [2018-11-07 20:22:44,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:22:44,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:44,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:22:44,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:44,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:22:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:22:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:22:45,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:22:45,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:22:45,151 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:22:45,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:22:45,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:22:45,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:22:45,152 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-11-07 20:22:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:22:56,102 INFO L93 Difference]: Finished difference Result 11148 states and 19850 transitions. [2018-11-07 20:22:56,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:22:56,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-07 20:22:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:22:56,158 INFO L225 Difference]: With dead ends: 11148 [2018-11-07 20:22:56,158 INFO L226 Difference]: Without dead ends: 7968 [2018-11-07 20:22:56,176 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:22:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2018-11-07 20:22:56,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7924. [2018-11-07 20:22:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7924 states. [2018-11-07 20:22:56,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13424 transitions. [2018-11-07 20:22:56,442 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 13424 transitions. Word has length 124 [2018-11-07 20:22:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:22:56,443 INFO L480 AbstractCegarLoop]: Abstraction has 7924 states and 13424 transitions. [2018-11-07 20:22:56,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:22:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 13424 transitions. [2018-11-07 20:22:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 20:22:56,450 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:22:56,450 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:22:56,454 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:22:56,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:22:56,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1322155659, now seen corresponding path program 1 times [2018-11-07 20:22:56,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:22:56,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:56,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:22:56,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:22:56,456 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:22:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:22:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:22:56,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:22:56,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:22:56,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:22:56,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:22:56,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:22:56,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:22:56,744 INFO L87 Difference]: Start difference. First operand 7924 states and 13424 transitions. Second operand 6 states. [2018-11-07 20:23:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:23:05,980 INFO L93 Difference]: Finished difference Result 22224 states and 38004 transitions. [2018-11-07 20:23:05,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:23:05,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-11-07 20:23:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:23:06,041 INFO L225 Difference]: With dead ends: 22224 [2018-11-07 20:23:06,041 INFO L226 Difference]: Without dead ends: 14306 [2018-11-07 20:23:06,080 INFO L604 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 [2018-11-07 20:23:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2018-11-07 20:23:06,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 14219. [2018-11-07 20:23:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14219 states. [2018-11-07 20:23:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14219 states to 14219 states and 21550 transitions. [2018-11-07 20:23:06,426 INFO L78 Accepts]: Start accepts. Automaton has 14219 states and 21550 transitions. Word has length 132 [2018-11-07 20:23:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:23:06,427 INFO L480 AbstractCegarLoop]: Abstraction has 14219 states and 21550 transitions. [2018-11-07 20:23:06,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:23:06,427 INFO L276 IsEmpty]: Start isEmpty. Operand 14219 states and 21550 transitions. [2018-11-07 20:23:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 20:23:06,431 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:23:06,432 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, 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] [2018-11-07 20:23:06,432 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:23:06,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:06,432 INFO L82 PathProgramCache]: Analyzing trace with hash 822542856, now seen corresponding path program 1 times [2018-11-07 20:23:06,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:23:06,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:06,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:23:06,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:06,434 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:23:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:23:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:23:07,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:23:07,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:23:07,002 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:23:07,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:23:07,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:23:07,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:23:07,003 INFO L87 Difference]: Start difference. First operand 14219 states and 21550 transitions. Second operand 6 states. [2018-11-07 20:23:20,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:23:20,479 INFO L93 Difference]: Finished difference Result 55643 states and 94112 transitions. [2018-11-07 20:23:20,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 20:23:20,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-07 20:23:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:23:20,724 INFO L225 Difference]: With dead ends: 55643 [2018-11-07 20:23:20,724 INFO L226 Difference]: Without dead ends: 41430 [2018-11-07 20:23:20,835 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:23:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41430 states. [2018-11-07 20:23:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41430 to 41207. [2018-11-07 20:23:21,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41207 states. [2018-11-07 20:23:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41207 states to 41207 states and 61751 transitions. [2018-11-07 20:23:22,076 INFO L78 Accepts]: Start accepts. Automaton has 41207 states and 61751 transitions. Word has length 149 [2018-11-07 20:23:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:23:22,076 INFO L480 AbstractCegarLoop]: Abstraction has 41207 states and 61751 transitions. [2018-11-07 20:23:22,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:23:22,077 INFO L276 IsEmpty]: Start isEmpty. Operand 41207 states and 61751 transitions. [2018-11-07 20:23:22,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-11-07 20:23:22,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:23:22,084 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, 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] [2018-11-07 20:23:22,084 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:23:22,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:22,085 INFO L82 PathProgramCache]: Analyzing trace with hash -891765791, now seen corresponding path program 1 times [2018-11-07 20:23:22,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:23:22,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:22,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:23:22,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:22,086 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:23:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:23:22,406 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:23:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:23:23,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:23:23,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:23:23,207 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:23:23,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:23:23,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:23:23,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:23:23,209 INFO L87 Difference]: Start difference. First operand 41207 states and 61751 transitions. Second operand 6 states. [2018-11-07 20:23:33,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:23:33,447 INFO L93 Difference]: Finished difference Result 102200 states and 162670 transitions. [2018-11-07 20:23:33,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:23:33,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2018-11-07 20:23:33,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:23:33,722 INFO L225 Difference]: With dead ends: 102200 [2018-11-07 20:23:33,722 INFO L226 Difference]: Without dead ends: 60999 [2018-11-07 20:23:33,893 INFO L604 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 [2018-11-07 20:23:33,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60999 states. [2018-11-07 20:23:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60999 to 60729. [2018-11-07 20:23:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60729 states. [2018-11-07 20:23:35,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60729 states to 60729 states and 85418 transitions. [2018-11-07 20:23:35,053 INFO L78 Accepts]: Start accepts. Automaton has 60729 states and 85418 transitions. Word has length 170 [2018-11-07 20:23:35,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:23:35,054 INFO L480 AbstractCegarLoop]: Abstraction has 60729 states and 85418 transitions. [2018-11-07 20:23:35,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:23:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 60729 states and 85418 transitions. [2018-11-07 20:23:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-07 20:23:35,065 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:23:35,065 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:23:35,066 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:23:35,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:35,066 INFO L82 PathProgramCache]: Analyzing trace with hash -707609888, now seen corresponding path program 1 times [2018-11-07 20:23:35,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:23:35,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:35,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:23:35,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:35,067 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:23:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:23:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 76 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:23:35,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:23:35,260 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:23:35,261 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-11-07 20:23:35,264 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2396], [2397], [2400], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:23:35,319 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:23:35,319 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:23:35,847 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:23:35,851 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 20:23:35,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:35,896 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:23:36,435 INFO L227 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 75.49% of their original sizes. [2018-11-07 20:23:36,435 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:23:36,726 INFO L415 sIntCurrentIteration]: We unified 203 AI predicates to 203 [2018-11-07 20:23:36,726 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:23:36,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:23:36,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-07 20:23:36,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:23:36,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 20:23:36,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 20:23:36,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:23:36,729 INFO L87 Difference]: Start difference. First operand 60729 states and 85418 transitions. Second operand 8 states. [2018-11-07 20:23:42,974 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:24:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:24:18,321 INFO L93 Difference]: Finished difference Result 122222 states and 171727 transitions. [2018-11-07 20:24:18,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:24:18,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2018-11-07 20:24:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:24:18,591 INFO L225 Difference]: With dead ends: 122222 [2018-11-07 20:24:18,592 INFO L226 Difference]: Without dead ends: 61499 [2018-11-07 20:24:18,715 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:24:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61499 states. [2018-11-07 20:24:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61499 to 61497. [2018-11-07 20:24:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61497 states. [2018-11-07 20:24:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61497 states to 61497 states and 86197 transitions. [2018-11-07 20:24:20,710 INFO L78 Accepts]: Start accepts. Automaton has 61497 states and 86197 transitions. Word has length 204 [2018-11-07 20:24:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:24:20,710 INFO L480 AbstractCegarLoop]: Abstraction has 61497 states and 86197 transitions. [2018-11-07 20:24:20,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 20:24:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 61497 states and 86197 transitions. [2018-11-07 20:24:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-07 20:24:20,716 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:24:20,716 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:24:20,717 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:24:20,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:24:20,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1796468920, now seen corresponding path program 1 times [2018-11-07 20:24:20,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:24:20,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:20,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:24:20,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:20,719 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:24:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:24:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 77 proven. 69 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 20:24:21,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:24:21,328 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:24:21,328 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-07 20:24:21,329 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2428], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:24:21,334 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:24:21,334 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:24:21,546 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:24:21,546 INFO L272 AbstractInterpreter]: Visited 96 different actions 184 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:24:21,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:24:21,586 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:24:21,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:24:21,587 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:24:21,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:24:21,603 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:24:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:24:21,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:24:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 20:24:21,894 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:24:22,156 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 20:24:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 20:24:22,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 20:24:22,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-11-07 20:24:22,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:24:22,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:24:22,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:24:22,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:24:22,964 INFO L87 Difference]: Start difference. First operand 61497 states and 86197 transitions. Second operand 5 states. [2018-11-07 20:24:32,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:24:32,108 INFO L93 Difference]: Finished difference Result 148738 states and 224171 transitions. [2018-11-07 20:24:32,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 20:24:32,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2018-11-07 20:24:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:24:32,703 INFO L225 Difference]: With dead ends: 148738 [2018-11-07 20:24:32,704 INFO L226 Difference]: Without dead ends: 88015 [2018-11-07 20:24:32,987 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 414 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:24:33,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88015 states. [2018-11-07 20:24:36,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88015 to 87986. [2018-11-07 20:24:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87986 states. [2018-11-07 20:24:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87986 states to 87986 states and 123522 transitions. [2018-11-07 20:24:36,354 INFO L78 Accepts]: Start accepts. Automaton has 87986 states and 123522 transitions. Word has length 208 [2018-11-07 20:24:36,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:24:36,355 INFO L480 AbstractCegarLoop]: Abstraction has 87986 states and 123522 transitions. [2018-11-07 20:24:36,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:24:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 87986 states and 123522 transitions. [2018-11-07 20:24:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-11-07 20:24:36,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:24:36,362 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:24:36,362 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:24:36,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:24:36,363 INFO L82 PathProgramCache]: Analyzing trace with hash 296788196, now seen corresponding path program 1 times [2018-11-07 20:24:36,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:24:36,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:36,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:24:36,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:24:36,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:24:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:24:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:24:36,853 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:24:36,853 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:24:36,854 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 247 with the following transitions: [2018-11-07 20:24:36,856 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2580], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:24:36,863 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:24:36,863 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:24:37,418 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:24:37,419 INFO L272 AbstractInterpreter]: Visited 134 different actions 263 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:24:37,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:24:37,460 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:24:37,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:24:37,461 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:24:37,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:24:37,480 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:24:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:24:37,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:24:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:24:38,051 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:24:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:24:38,928 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:24:38,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 20:24:38,929 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:24:38,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 20:24:38,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 20:24:38,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:24:38,930 INFO L87 Difference]: Start difference. First operand 87986 states and 123522 transitions. Second operand 9 states. [2018-11-07 20:24:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:24:58,256 INFO L93 Difference]: Finished difference Result 199641 states and 335276 transitions. [2018-11-07 20:24:58,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 20:24:58,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2018-11-07 20:24:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:24:58,848 INFO L225 Difference]: With dead ends: 199641 [2018-11-07 20:24:58,848 INFO L226 Difference]: Without dead ends: 84049 [2018-11-07 20:24:59,219 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2018-11-07 20:24:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84049 states. [2018-11-07 20:25:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84049 to 80807. [2018-11-07 20:25:01,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80807 states. [2018-11-07 20:25:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80807 states to 80807 states and 119598 transitions. [2018-11-07 20:25:01,459 INFO L78 Accepts]: Start accepts. Automaton has 80807 states and 119598 transitions. Word has length 246 [2018-11-07 20:25:01,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:25:01,460 INFO L480 AbstractCegarLoop]: Abstraction has 80807 states and 119598 transitions. [2018-11-07 20:25:01,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 20:25:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 80807 states and 119598 transitions. [2018-11-07 20:25:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-11-07 20:25:01,467 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:25:01,467 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:25:01,467 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:25:01,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:01,468 INFO L82 PathProgramCache]: Analyzing trace with hash 267517201, now seen corresponding path program 1 times [2018-11-07 20:25:01,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:25:01,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:01,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:25:01,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:25:01,469 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:25:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:25:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 70 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:25:01,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:25:01,820 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:25:01,820 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 296 with the following transitions: [2018-11-07 20:25:01,820 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2127], [2129], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2496], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:25:01,826 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:25:02,379 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:25:02,539 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:25:03,054 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:25:03,054 INFO L272 AbstractInterpreter]: Visited 154 different actions 454 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-11-07 20:25:03,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:25:03,097 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:25:03,620 INFO L227 lantSequenceWeakener]: Weakened 292 states. On average, predicates are now at 75.36% of their original sizes. [2018-11-07 20:25:03,620 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:25:03,911 INFO L415 sIntCurrentIteration]: We unified 294 AI predicates to 294 [2018-11-07 20:25:03,912 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:25:03,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:25:03,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-11-07 20:25:03,912 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:25:03,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:25:03,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:25:03,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:25:03,913 INFO L87 Difference]: Start difference. First operand 80807 states and 119598 transitions. Second operand 11 states. Received shutdown request... [2018-11-07 20:25:36,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 20:25:36,815 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:25:36,821 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:25:36,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:25:36 BoogieIcfgContainer [2018-11-07 20:25:36,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:25:36,822 INFO L168 Benchmark]: Toolchain (without parser) took 203715.67 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 20:25:36,823 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:25:36,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2089.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:25:36,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 361.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:25:36,825 INFO L168 Benchmark]: Boogie Preprocessor took 289.98 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:25:36,826 INFO L168 Benchmark]: RCFGBuilder took 9387.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 656.3 MB). Peak memory consumption was 656.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:25:36,827 INFO L168 Benchmark]: TraceAbstraction took 191582.51 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 20:25:36,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2089.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 361.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 289.98 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9387.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 656.3 MB). Peak memory consumption was 656.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191582.51 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was constructing difference of abstraction (80807states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (52424 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 191.4s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 167.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2426 SDtfs, 30006 SDslu, 1995 SDs, 0 SdLazy, 58432 SolverSat, 12657 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1506 GetRequests, 1406 SyntacticMatches, 10 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87986occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 4 AbstIntIterations, 2 AbstIntStrong, 0.9976179474740403 AbsIntWeakeningRatio, 0.10865191146881288 AbsIntAvgWeakeningVarsNumRemoved, 22.929577464788732 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 3931 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 2146 NumberOfCodeBlocks, 2146 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2586 ConstructedInterpolants, 0 QuantifiedInterpolants, 2084025 SizeOfPredicates, 1 NumberOfNonLiveVariables, 878 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 1176/1437 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown