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/Problem13_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:28:32,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:28:32,976 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:28:32,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:28:32,994 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:28:32,995 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:28:32,997 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:28:32,998 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:28:33,000 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:28:33,004 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:28:33,005 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:28:33,005 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:28:33,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:28:33,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:28:33,016 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:28:33,017 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:28:33,018 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:28:33,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:28:33,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:28:33,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:28:33,029 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:28:33,030 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:28:33,032 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:28:33,043 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 01:28:33,044 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 01:28:33,045 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 01:28:33,045 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 01:28:33,046 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 01:28:33,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:28:33,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:28:33,070 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:28:33,070 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:28:33,070 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:28:33,071 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:28:33,071 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:28:33,071 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:28:33,072 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:28:33,072 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:28:33,072 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:28:33,072 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:28:33,073 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:28:33,073 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:28:33,073 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:28:33,074 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:28:33,075 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:28:33,075 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:28:33,075 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:28:33,075 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:28:33,076 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:28:33,076 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:28:33,076 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:28:33,076 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:28:33,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:28:33,077 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:28:33,077 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:28:33,077 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:28:33,077 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:28:33,078 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:28:33,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:28:33,078 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:28:33,078 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:28:33,078 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:28:33,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:28:33,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:28:33,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:28:33,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:28:33,155 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:28:33,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label46_true-unreach-call.c [2018-10-24 01:28:33,220 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5c33d9ece/2ad98c43ce234855b29c6f6837b676a0/FLAG33f0dc985 [2018-10-24 01:28:34,014 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:28:34,015 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label46_true-unreach-call.c [2018-10-24 01:28:34,055 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5c33d9ece/2ad98c43ce234855b29c6f6837b676a0/FLAG33f0dc985 [2018-10-24 01:28:34,075 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5c33d9ece/2ad98c43ce234855b29c6f6837b676a0 [2018-10-24 01:28:34,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:28:34,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:28:34,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:28:34,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:28:34,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:28:34,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:28:34" (1/1) ... [2018-10-24 01:28:34,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4effe140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:34, skipping insertion in model container [2018-10-24 01:28:34,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:28:34" (1/1) ... [2018-10-24 01:28:34,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:28:34,303 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:28:35,819 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:28:35,824 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:28:36,565 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:28:36,607 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:28:36,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36 WrapperNode [2018-10-24 01:28:36,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:28:36,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:28:36,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:28:36,609 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:28:36,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:36,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:28:37,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:28:37,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:28:37,228 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:28:37,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (1/1) ... [2018-10-24 01:28:37,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:28:37,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:28:37,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:28:37,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:28:37,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (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 01:28:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:28:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:28:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 01:28:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 01:28:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 01:28:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 01:28:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 01:28:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 01:28:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:28:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:28:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:28:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:28:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:28:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:28:50,132 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:28:50,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:28:50 BoogieIcfgContainer [2018-10-24 01:28:50,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:28:50,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:28:50,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:28:50,138 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:28:50,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:28:34" (1/3) ... [2018-10-24 01:28:50,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214644d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:28:50, skipping insertion in model container [2018-10-24 01:28:50,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:28:36" (2/3) ... [2018-10-24 01:28:50,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214644d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:28:50, skipping insertion in model container [2018-10-24 01:28:50,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:28:50" (3/3) ... [2018-10-24 01:28:50,142 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label46_true-unreach-call.c [2018-10-24 01:28:50,152 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:28:50,163 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:28:50,181 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:28:50,243 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:28:50,244 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:28:50,244 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:28:50,244 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:28:50,244 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:28:50,244 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:28:50,245 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:28:50,247 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:28:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 01:28:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-24 01:28:50,309 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:28:50,310 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, 1, 1, 1, 1, 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 01:28:50,313 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:28:50,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:28:50,319 INFO L82 PathProgramCache]: Analyzing trace with hash -935987813, now seen corresponding path program 1 times [2018-10-24 01:28:50,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:28:50,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:28:50,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:28:50,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:28:50,383 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:28:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:28:50,935 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:28:51,034 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 01:28:51,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:28:51,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 01:28:51,037 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:28:51,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 01:28:51,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 01:28:51,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:28:51,066 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-24 01:29:01,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:29:01,892 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-10-24 01:29:01,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 01:29:01,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2018-10-24 01:29:01,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:29:01,938 INFO L225 Difference]: With dead ends: 3101 [2018-10-24 01:29:01,939 INFO L226 Difference]: Without dead ends: 1979 [2018-10-24 01:29:01,954 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:29:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-10-24 01:29:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-10-24 01:29:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-10-24 01:29:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-10-24 01:29:02,165 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 73 [2018-10-24 01:29:02,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:29:02,168 INFO L481 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-10-24 01:29:02,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 01:29:02,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-10-24 01:29:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-24 01:29:02,178 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:29:02,179 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, 2, 2, 2, 2, 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] [2018-10-24 01:29:02,179 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:29:02,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:29:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash 400656362, now seen corresponding path program 1 times [2018-10-24 01:29:02,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:29:02,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:02,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:29:02,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:02,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:29:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:29:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:29:02,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:29:02,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 01:29:02,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:29:02,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 01:29:02,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 01:29:02,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 01:29:02,494 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-10-24 01:29:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:29:19,065 INFO L93 Difference]: Finished difference Result 5717 states and 10466 transitions. [2018-10-24 01:29:19,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 01:29:19,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-10-24 01:29:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:29:19,098 INFO L225 Difference]: With dead ends: 5717 [2018-10-24 01:29:19,099 INFO L226 Difference]: Without dead ends: 3764 [2018-10-24 01:29:19,107 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:29:19,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2018-10-24 01:29:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3679. [2018-10-24 01:29:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3679 states. [2018-10-24 01:29:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 6042 transitions. [2018-10-24 01:29:19,244 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 6042 transitions. Word has length 149 [2018-10-24 01:29:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:29:19,245 INFO L481 AbstractCegarLoop]: Abstraction has 3679 states and 6042 transitions. [2018-10-24 01:29:19,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 01:29:19,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 6042 transitions. [2018-10-24 01:29:19,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-24 01:29:19,249 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:29:19,250 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, 2, 2, 2, 2, 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] [2018-10-24 01:29:19,250 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:29:19,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:29:19,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1264699457, now seen corresponding path program 1 times [2018-10-24 01:29:19,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:29:19,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:19,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:29:19,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:19,252 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:29:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:29:19,576 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:29:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:29:19,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:29:19,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:29:19,661 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:29:19,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:29:19,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:29:19,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:29:19,662 INFO L87 Difference]: Start difference. First operand 3679 states and 6042 transitions. Second operand 6 states. [2018-10-24 01:29:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:29:30,105 INFO L93 Difference]: Finished difference Result 10857 states and 18392 transitions. [2018-10-24 01:29:30,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:29:30,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-10-24 01:29:30,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:29:30,152 INFO L225 Difference]: With dead ends: 10857 [2018-10-24 01:29:30,152 INFO L226 Difference]: Without dead ends: 7184 [2018-10-24 01:29:30,169 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 01:29:30,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2018-10-24 01:29:30,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 7133. [2018-10-24 01:29:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7133 states. [2018-10-24 01:29:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 10914 transitions. [2018-10-24 01:29:30,378 INFO L78 Accepts]: Start accepts. Automaton has 7133 states and 10914 transitions. Word has length 150 [2018-10-24 01:29:30,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:29:30,379 INFO L481 AbstractCegarLoop]: Abstraction has 7133 states and 10914 transitions. [2018-10-24 01:29:30,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:29:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 7133 states and 10914 transitions. [2018-10-24 01:29:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 01:29:30,383 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:29:30,383 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, 2, 2, 2, 2, 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] [2018-10-24 01:29:30,384 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:29:30,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:29:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1422847528, now seen corresponding path program 1 times [2018-10-24 01:29:30,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:29:30,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:30,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:29:30,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:30,386 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:29:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:29:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:29:30,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:29:30,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 01:29:30,548 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:29:30,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 01:29:30,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 01:29:30,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:29:30,551 INFO L87 Difference]: Start difference. First operand 7133 states and 10914 transitions. Second operand 3 states. [2018-10-24 01:29:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:29:38,063 INFO L93 Difference]: Finished difference Result 20919 states and 33362 transitions. [2018-10-24 01:29:38,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 01:29:38,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2018-10-24 01:29:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:29:38,142 INFO L225 Difference]: With dead ends: 20919 [2018-10-24 01:29:38,142 INFO L226 Difference]: Without dead ends: 13792 [2018-10-24 01:29:38,193 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:29:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2018-10-24 01:29:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 13791. [2018-10-24 01:29:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13791 states. [2018-10-24 01:29:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13791 states to 13791 states and 20334 transitions. [2018-10-24 01:29:38,837 INFO L78 Accepts]: Start accepts. Automaton has 13791 states and 20334 transitions. Word has length 174 [2018-10-24 01:29:38,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:29:38,837 INFO L481 AbstractCegarLoop]: Abstraction has 13791 states and 20334 transitions. [2018-10-24 01:29:38,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 01:29:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 13791 states and 20334 transitions. [2018-10-24 01:29:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-24 01:29:38,850 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:29:38,850 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:29:38,851 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:29:38,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:29:38,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1589052739, now seen corresponding path program 1 times [2018-10-24 01:29:38,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:29:38,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:38,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:29:38,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:29:38,853 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:29:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:29:39,155 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:29:39,397 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 132 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 01:29:39,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:29:39,397 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:29:39,399 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-10-24 01:29:39,401 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3099], [3107], [3111], [3113], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 01:29:39,485 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:29:39,485 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:29:43,296 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:29:47,226 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:29:47,231 INFO L272 AbstractInterpreter]: Visited 83 different actions 83 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 01:29:47,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:29:47,254 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:29:52,482 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 72.19% of their original sizes. [2018-10-24 01:29:52,483 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:29:54,361 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:29:54,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:29:54,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-10-24 01:29:54,363 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:29:54,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 01:29:54,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 01:29:54,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:29:54,365 INFO L87 Difference]: Start difference. First operand 13791 states and 20334 transitions. Second operand 10 states. Received shutdown request... [2018-10-24 01:32:15,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 01:32:15,980 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:32:15,985 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:32:15,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:32:15 BoogieIcfgContainer [2018-10-24 01:32:15,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:32:15,987 INFO L168 Benchmark]: Toolchain (without parser) took 221897.30 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 01:32:15,988 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:32:15,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2516.41 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 01:32:15,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 618.64 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 817.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-24 01:32:15,990 INFO L168 Benchmark]: Boogie Preprocessor took 349.02 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:32:15,991 INFO L168 Benchmark]: RCFGBuilder took 12556.23 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 201.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -12.0 MB). Peak memory consumption was 678.5 MB. Max. memory is 7.1 GB. [2018-10-24 01:32:15,992 INFO L168 Benchmark]: TraceAbstraction took 205851.91 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: -338.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 01:32:15,998 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2516.41 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 618.64 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 817.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 349.02 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12556.23 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 201.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -12.0 MB). Peak memory consumption was 678.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205851.91 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: -338.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 210]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 210). Cancelled while BasicCegarLoop was constructing difference of abstraction (13791states) and FLOYD_HOARE automaton (currently 9 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (4263 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 205.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 187.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2368 SDtfs, 10851 SDslu, 1504 SDs, 0 SdLazy, 14955 SolverSat, 4821 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 258 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13791occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9957113682777399 AbsIntWeakeningRatio, 0.11946902654867257 AbsIntAvgWeakeningVarsNumRemoved, 26.513274336283185 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 773 NumberOfCodeBlocks, 773 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 768 ConstructedInterpolants, 0 QuantifiedInterpolants, 349756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 335/406 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown