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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label39_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:28:15,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:28:15,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:28:15,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:28:15,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:28:15,986 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:28:15,989 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:28:15,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:28:15,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:28:15,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:28:15,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:28:15,999 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:28:16,000 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:28:16,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:28:16,012 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:28:16,013 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:28:16,014 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:28:16,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:28:16,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:28:16,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:28:16,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:28:16,021 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:28:16,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:28:16,023 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:28:16,023 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:28:16,024 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:28:16,025 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:28:16,026 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:28:16,026 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:28:16,028 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:28:16,028 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:28:16,028 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 00:28:16,029 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:28:16,029 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:28:16,030 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:28:16,031 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:28:16,031 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:28:16,057 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:28:16,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:28:16,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:28:16,058 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:28:16,058 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:28:16,058 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:28:16,059 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:28:16,060 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:28:16,060 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:28:16,060 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:28:16,060 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:28:16,060 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:28:16,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:28:16,061 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:28:16,063 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:28:16,063 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:28:16,063 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:28:16,063 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:28:16,063 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:28:16,064 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:28:16,064 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:28:16,064 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:28:16,064 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:28:16,064 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:28:16,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:28:16,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:28:16,066 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:28:16,066 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:28:16,067 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:28:16,067 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:28:16,067 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:28:16,067 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:28:16,067 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:28:16,068 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:28:16,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:28:16,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:28:16,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:28:16,157 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:28:16,158 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:28:16,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label39_false-unreach-call.c [2018-11-07 00:28:16,219 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e587e27/f89c2d52c61b4b46bb3e69da11ce4642/FLAGe9ab37182 [2018-11-07 00:28:16,926 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:28:16,927 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label39_false-unreach-call.c [2018-11-07 00:28:16,950 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e587e27/f89c2d52c61b4b46bb3e69da11ce4642/FLAGe9ab37182 [2018-11-07 00:28:16,965 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54e587e27/f89c2d52c61b4b46bb3e69da11ce4642 [2018-11-07 00:28:16,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:28:16,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:28:16,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:28:16,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:28:16,984 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:28:16,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:28:16" (1/1) ... [2018-11-07 00:28:16,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5faf74f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:16, skipping insertion in model container [2018-11-07 00:28:16,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:28:16" (1/1) ... [2018-11-07 00:28:17,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:28:17,086 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:28:17,874 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:28:17,879 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:28:18,198 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:28:18,221 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:28:18,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18 WrapperNode [2018-11-07 00:28:18,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:28:18,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:28:18,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:28:18,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:28:18,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:28:18,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:28:18,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:28:18,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:28:18,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (1/1) ... [2018-11-07 00:28:18,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:28:18,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:28:18,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:28:18,613 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:28:18,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (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 00:28:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:28:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:28:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:28:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:28:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:28:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:28:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:28:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:28:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:28:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:28:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:28:24,229 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:28:24,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:28:24 BoogieIcfgContainer [2018-11-07 00:28:24,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:28:24,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:28:24,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:28:24,235 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:28:24,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:28:16" (1/3) ... [2018-11-07 00:28:24,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301474fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:28:24, skipping insertion in model container [2018-11-07 00:28:24,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:28:18" (2/3) ... [2018-11-07 00:28:24,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301474fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:28:24, skipping insertion in model container [2018-11-07 00:28:24,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:28:24" (3/3) ... [2018-11-07 00:28:24,239 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label39_false-unreach-call.c [2018-11-07 00:28:24,249 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:28:24,258 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:28:24,274 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:28:24,315 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:28:24,315 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:28:24,315 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:28:24,316 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:28:24,316 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:28:24,316 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:28:24,316 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:28:24,316 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:28:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 00:28:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-07 00:28:24,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:28:24,362 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:28:24,366 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:28:24,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:28:24,372 INFO L82 PathProgramCache]: Analyzing trace with hash -665344236, now seen corresponding path program 1 times [2018-11-07 00:28:24,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:28:24,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:24,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:28:24,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:24,429 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:28:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:28:24,835 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-07 00:28:24,840 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 00:28:24,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:28:24,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:28:24,843 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:28:24,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:28:24,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:28:24,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:28:24,870 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 00:28:31,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:28:31,058 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-11-07 00:28:31,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:28:31,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-07 00:28:31,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:28:31,091 INFO L225 Difference]: With dead ends: 1558 [2018-11-07 00:28:31,092 INFO L226 Difference]: Without dead ends: 1114 [2018-11-07 00:28:31,103 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:28:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-11-07 00:28:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-11-07 00:28:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-11-07 00:28:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-11-07 00:28:31,221 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 18 [2018-11-07 00:28:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:28:31,221 INFO L480 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-11-07 00:28:31,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:28:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-11-07 00:28:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-07 00:28:31,226 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:28:31,227 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:28:31,227 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:28:31,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:28:31,228 INFO L82 PathProgramCache]: Analyzing trace with hash -190477857, now seen corresponding path program 1 times [2018-11-07 00:28:31,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:28:31,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:31,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:28:31,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:31,230 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:28:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:28:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:28:31,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:28:31,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:28:31,593 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:28:31,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:28:31,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:28:31,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:28:31,596 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 5 states. [2018-11-07 00:28:39,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:28:39,688 INFO L93 Difference]: Finished difference Result 2506 states and 4577 transitions. [2018-11-07 00:28:39,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:28:39,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-11-07 00:28:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:28:39,707 INFO L225 Difference]: With dead ends: 2506 [2018-11-07 00:28:39,707 INFO L226 Difference]: Without dead ends: 1753 [2018-11-07 00:28:39,713 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:28:39,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2018-11-07 00:28:39,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1733. [2018-11-07 00:28:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2018-11-07 00:28:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 3007 transitions. [2018-11-07 00:28:39,816 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 3007 transitions. Word has length 88 [2018-11-07 00:28:39,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:28:39,817 INFO L480 AbstractCegarLoop]: Abstraction has 1733 states and 3007 transitions. [2018-11-07 00:28:39,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:28:39,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 3007 transitions. [2018-11-07 00:28:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-07 00:28:39,822 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:28:39,824 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:28:39,825 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:28:39,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:28:39,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1516002770, now seen corresponding path program 1 times [2018-11-07 00:28:39,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:28:39,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:39,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:28:39,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:39,828 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:28:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:28:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:28:40,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:28:40,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:28:40,056 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:28:40,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:28:40,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:28:40,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:28:40,058 INFO L87 Difference]: Start difference. First operand 1733 states and 3007 transitions. Second operand 6 states. [2018-11-07 00:28:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:28:46,590 INFO L93 Difference]: Finished difference Result 5656 states and 10485 transitions. [2018-11-07 00:28:46,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 00:28:46,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-11-07 00:28:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:28:46,636 INFO L225 Difference]: With dead ends: 5656 [2018-11-07 00:28:46,636 INFO L226 Difference]: Without dead ends: 3929 [2018-11-07 00:28:46,662 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:28:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2018-11-07 00:28:46,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3821. [2018-11-07 00:28:46,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3821 states. [2018-11-07 00:28:46,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5793 transitions. [2018-11-07 00:28:46,793 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5793 transitions. Word has length 89 [2018-11-07 00:28:46,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:28:46,795 INFO L480 AbstractCegarLoop]: Abstraction has 3821 states and 5793 transitions. [2018-11-07 00:28:46,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:28:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5793 transitions. [2018-11-07 00:28:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-07 00:28:46,799 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:28:46,800 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:28:46,801 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:28:46,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:28:46,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1135663782, now seen corresponding path program 1 times [2018-11-07 00:28:46,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:28:46,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:46,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:28:46,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:46,803 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:28:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:28:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:28:47,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:28:47,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:28:47,089 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:28:47,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:28:47,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:28:47,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:28:47,090 INFO L87 Difference]: Start difference. First operand 3821 states and 5793 transitions. Second operand 6 states. [2018-11-07 00:28:52,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:28:52,086 INFO L93 Difference]: Finished difference Result 10735 states and 17540 transitions. [2018-11-07 00:28:52,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:28:52,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-11-07 00:28:52,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:28:52,135 INFO L225 Difference]: With dead ends: 10735 [2018-11-07 00:28:52,135 INFO L226 Difference]: Without dead ends: 7229 [2018-11-07 00:28:52,168 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 00:28:52,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2018-11-07 00:28:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 7174. [2018-11-07 00:28:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7174 states. [2018-11-07 00:28:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 10359 transitions. [2018-11-07 00:28:52,364 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 10359 transitions. Word has length 93 [2018-11-07 00:28:52,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:28:52,364 INFO L480 AbstractCegarLoop]: Abstraction has 7174 states and 10359 transitions. [2018-11-07 00:28:52,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:28:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 10359 transitions. [2018-11-07 00:28:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-07 00:28:52,367 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:28:52,367 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:28:52,368 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:28:52,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:28:52,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1390583197, now seen corresponding path program 1 times [2018-11-07 00:28:52,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:28:52,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:52,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:28:52,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:28:52,369 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:28:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:28:52,758 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:28:52,759 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:28:52,759 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:28:52,760 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-11-07 00:28:52,762 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:28:52,865 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:28:52,865 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:28:54,719 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:29:01,677 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:29:01,679 INFO L272 AbstractInterpreter]: Visited 104 different actions 298 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:29:01,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:29:01,694 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:29:01,694 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:29:01,694 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 00:29:01,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:29:01,706 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:29:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:29:01,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:29:05,273 WARN L179 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 37 [2018-11-07 00:29:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:29:07,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:29:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:29:07,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 00:29:07,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 11 [2018-11-07 00:29:07,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:29:07,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:29:07,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:29:07,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-11-07 00:29:07,387 INFO L87 Difference]: Start difference. First operand 7174 states and 10359 transitions. Second operand 3 states. [2018-11-07 00:29:10,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:29:10,875 INFO L93 Difference]: Finished difference Result 15299 states and 23092 transitions. [2018-11-07 00:29:10,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:29:10,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2018-11-07 00:29:10,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:29:10,944 INFO L225 Difference]: With dead ends: 15299 [2018-11-07 00:29:10,945 INFO L226 Difference]: Without dead ends: 8440 [2018-11-07 00:29:11,009 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 224 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=30, Invalid=78, Unknown=2, NotChecked=0, Total=110 [2018-11-07 00:29:11,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2018-11-07 00:29:11,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 8432. [2018-11-07 00:29:11,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8432 states. [2018-11-07 00:29:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8432 states to 8432 states and 12390 transitions. [2018-11-07 00:29:11,262 INFO L78 Accepts]: Start accepts. Automaton has 8432 states and 12390 transitions. Word has length 114 [2018-11-07 00:29:11,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:29:11,263 INFO L480 AbstractCegarLoop]: Abstraction has 8432 states and 12390 transitions. [2018-11-07 00:29:11,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:29:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8432 states and 12390 transitions. [2018-11-07 00:29:11,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-07 00:29:11,270 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:29:11,271 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:29:11,271 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:29:11,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:29:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1089244079, now seen corresponding path program 1 times [2018-11-07 00:29:11,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:29:11,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:11,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:29:11,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:29:11,273 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:29:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:29:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:29:11,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:29:11,900 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:29:11,901 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-11-07 00:29:11,901 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1056], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:29:11,911 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:29:11,911 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:29:15,020 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:29:15,193 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:29:15,194 INFO L272 AbstractInterpreter]: Visited 172 different actions 172 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:29:15,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:29:15,219 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:29:17,136 INFO L227 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 77.35% of their original sizes. [2018-11-07 00:29:17,137 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:29:17,713 INFO L415 sIntCurrentIteration]: We unified 185 AI predicates to 185 [2018-11-07 00:29:17,714 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:29:17,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:29:17,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-07 00:29:17,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:29:17,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:29:17,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:29:17,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:29:17,716 INFO L87 Difference]: Start difference. First operand 8432 states and 12390 transitions. Second operand 8 states. [2018-11-07 00:30:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:34,681 INFO L93 Difference]: Finished difference Result 16551 states and 24438 transitions. [2018-11-07 00:30:34,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:30:34,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2018-11-07 00:30:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:34,724 INFO L225 Difference]: With dead ends: 16551 [2018-11-07 00:30:34,725 INFO L226 Difference]: Without dead ends: 8433 [2018-11-07 00:30:34,749 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:30:34,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8433 states. [2018-11-07 00:30:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8433 to 8424. [2018-11-07 00:30:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8424 states. [2018-11-07 00:30:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 12340 transitions. [2018-11-07 00:30:34,959 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 12340 transitions. Word has length 186 [2018-11-07 00:30:34,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:34,960 INFO L480 AbstractCegarLoop]: Abstraction has 8424 states and 12340 transitions. [2018-11-07 00:30:34,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 00:30:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 12340 transitions. [2018-11-07 00:30:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-11-07 00:30:34,965 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:34,966 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:34,966 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:34,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:34,966 INFO L82 PathProgramCache]: Analyzing trace with hash 616391350, now seen corresponding path program 1 times [2018-11-07 00:30:34,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:34,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:34,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:34,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:34,968 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:35,258 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:30:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 23 proven. 82 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-07 00:30:35,603 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:30:35,604 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:30:35,604 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-11-07 00:30:35,604 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [742], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:30:35,614 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:30:35,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:30:36,752 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:30:45,153 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:30:45,154 INFO L272 AbstractInterpreter]: Visited 116 different actions 334 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:30:45,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:45,163 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:30:45,163 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:30:45,163 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 00:30:45,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:45,175 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:30:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:45,257 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:30:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:45,432 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:30:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 116 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:45,592 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 00:30:45,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 00:30:45,592 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 00:30:45,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 00:30:45,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 00:30:45,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 00:30:45,594 INFO L87 Difference]: Start difference. First operand 8424 states and 12340 transitions. Second operand 9 states. [2018-11-07 00:30:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:54,301 INFO L93 Difference]: Finished difference Result 26031 states and 41690 transitions. [2018-11-07 00:30:54,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 00:30:54,302 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2018-11-07 00:30:54,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:54,391 INFO L225 Difference]: With dead ends: 26031 [2018-11-07 00:30:54,392 INFO L226 Difference]: Without dead ends: 17921 [2018-11-07 00:30:54,446 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 442 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2018-11-07 00:30:54,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17921 states. [2018-11-07 00:30:54,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17921 to 17155. [2018-11-07 00:30:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17155 states. [2018-11-07 00:30:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17155 states to 17155 states and 23945 transitions. [2018-11-07 00:30:54,887 INFO L78 Accepts]: Start accepts. Automaton has 17155 states and 23945 transitions. Word has length 221 [2018-11-07 00:30:54,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:54,888 INFO L480 AbstractCegarLoop]: Abstraction has 17155 states and 23945 transitions. [2018-11-07 00:30:54,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 00:30:54,888 INFO L276 IsEmpty]: Start isEmpty. Operand 17155 states and 23945 transitions. [2018-11-07 00:30:54,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-11-07 00:30:54,894 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:54,894 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:54,895 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:54,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:54,895 INFO L82 PathProgramCache]: Analyzing trace with hash 315585456, now seen corresponding path program 1 times [2018-11-07 00:30:54,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:54,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:54,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:54,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:54,896 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:55,510 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-11-07 00:30:55,835 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-07 00:30:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:55,916 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:30:55,916 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:30:55,917 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-11-07 00:30:55,917 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:30:55,925 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:30:55,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:31:04,349 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:31:23,761 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:31:23,761 INFO L272 AbstractInterpreter]: Visited 246 different actions 725 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:31:23,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:31:23,771 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:31:23,771 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:31:23,771 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:31:23,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:31:23,782 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:31:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:31:23,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:31:28,016 WARN L179 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 38 [2018-11-07 00:31:28,087 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:31:28,087 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:31:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:31:29,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 00:31:29,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-11-07 00:31:29,828 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:31:29,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:31:29,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:31:29,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-07 00:31:29,830 INFO L87 Difference]: Start difference. First operand 17155 states and 23945 transitions. Second operand 6 states. [2018-11-07 00:31:47,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:31:47,895 INFO L93 Difference]: Finished difference Result 38780 states and 54817 transitions. [2018-11-07 00:31:47,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 00:31:47,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2018-11-07 00:31:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:31:48,024 INFO L225 Difference]: With dead ends: 38780 [2018-11-07 00:31:48,024 INFO L226 Difference]: Without dead ends: 21939 [2018-11-07 00:31:48,095 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 507 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-07 00:31:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21939 states. [2018-11-07 00:31:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21939 to 21298. [2018-11-07 00:31:48,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21298 states. [2018-11-07 00:31:48,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21298 states to 21298 states and 30300 transitions. [2018-11-07 00:31:48,626 INFO L78 Accepts]: Start accepts. Automaton has 21298 states and 30300 transitions. Word has length 256 [2018-11-07 00:31:48,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:31:48,627 INFO L480 AbstractCegarLoop]: Abstraction has 21298 states and 30300 transitions. [2018-11-07 00:31:48,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:31:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 21298 states and 30300 transitions. [2018-11-07 00:31:48,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-11-07 00:31:48,644 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:31:48,645 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 00:31:48,645 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:31:48,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:31:48,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1981841554, now seen corresponding path program 1 times [2018-11-07 00:31:48,645 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:31:48,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:31:48,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:31:48,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:31:48,647 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:31:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:31:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 39 proven. 253 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-07 00:31:49,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:31:49,126 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:31:49,126 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 330 with the following transitions: [2018-11-07 00:31:49,127 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [117], [119], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [648], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [868], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:31:49,130 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:31:49,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:31:50,747 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:32:00,945 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 00:32:00,946 INFO L272 AbstractInterpreter]: Visited 138 different actions 400 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:32:00,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:32:00,954 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 00:32:00,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:32:00,954 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:32:00,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:32:00,965 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:32:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:32:01,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:32:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-11-07 00:32:01,188 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 00:32:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 41 proven. 173 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-11-07 00:32:01,691 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 00:32:01,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-07 00:32:01,692 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 00:32:01,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 00:32:01,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 00:32:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:32:01,696 INFO L87 Difference]: Start difference. First operand 21298 states and 30300 transitions. Second operand 7 states. Received shutdown request... [2018-11-07 00:32:04,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 00:32:04,052 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:32:04,063 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:32:04,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:32:04 BoogieIcfgContainer [2018-11-07 00:32:04,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:32:04,065 INFO L168 Benchmark]: Toolchain (without parser) took 227087.38 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 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 00:32:04,066 INFO L168 Benchmark]: CDTParser took 0.20 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 00:32:04,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1241.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:32:04,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 216.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -914.0 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:32:04,068 INFO L168 Benchmark]: Boogie Preprocessor took 173.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:32:04,069 INFO L168 Benchmark]: RCFGBuilder took 5616.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 293.8 MB). Peak memory consumption was 293.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:32:04,070 INFO L168 Benchmark]: TraceAbstraction took 219833.54 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -985.5 MB). Peak memory consumption was 921.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:32:04,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1241.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 216.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -914.0 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 173.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5616.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 293.8 MB). Peak memory consumption was 293.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219833.54 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -985.5 MB). Peak memory consumption was 921.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 40). Cancelled while BasicCegarLoop was constructing difference of abstraction (21298states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (20510 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 219.7s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 136.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2155 SDtfs, 13052 SDslu, 2126 SDs, 0 SdLazy, 20868 SolverSat, 5246 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 103.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2120 GetRequests, 2024 SyntacticMatches, 13 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21298occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 61.4s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9954661182922054 AbsIntWeakeningRatio, 0.10810810810810811 AbsIntAvgWeakeningVarsNumRemoved, 894.8810810810811 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 1962 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 2314 NumberOfCodeBlocks, 2314 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3217 ConstructedInterpolants, 257 QuantifiedInterpolants, 4547126 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1611 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 812/1373 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown