java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:15:09,965 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:15:09,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:15:09,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:15:09,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:15:09,988 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:15:09,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:15:09,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:15:09,994 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:15:09,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:15:09,995 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:15:09,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:15:09,997 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:15:09,998 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:15:09,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:15:10,000 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:15:10,001 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:15:10,003 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:15:10,005 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:15:10,008 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:15:10,009 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:15:10,010 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:15:10,013 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:15:10,013 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:15:10,014 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:15:10,015 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:15:10,016 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:15:10,017 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:15:10,018 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:15:10,019 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:15:10,019 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:15:10,020 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:15:10,020 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:15:10,020 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:15:10,021 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:15:10,022 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:15:10,022 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 18:15:10,051 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:15:10,051 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:15:10,052 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:15:10,052 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:15:10,052 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:15:10,053 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:15:10,053 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:15:10,053 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:15:10,053 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:15:10,053 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:15:10,054 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:15:10,054 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:15:10,055 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:15:10,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:15:10,056 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:15:10,056 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:15:10,056 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:15:10,056 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:15:10,056 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:15:10,058 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:15:10,058 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:15:10,059 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:15:10,059 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:15:10,059 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:15:10,059 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:15:10,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:15:10,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:15:10,060 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:15:10,060 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:15:10,060 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:15:10,061 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:15:10,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:15:10,061 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:15:10,061 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:15:10,061 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:15:10,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:15:10,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:15:10,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:15:10,155 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:15:10,156 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:15:10,157 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label30_false-unreach-call.c [2018-11-07 18:15:10,229 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fd8286c/ad359c3cde7142a29db5ca6c3ba9b1b6/FLAGb412121fc [2018-11-07 18:15:10,916 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:15:10,917 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label30_false-unreach-call.c [2018-11-07 18:15:10,939 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fd8286c/ad359c3cde7142a29db5ca6c3ba9b1b6/FLAGb412121fc [2018-11-07 18:15:10,957 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fd8286c/ad359c3cde7142a29db5ca6c3ba9b1b6 [2018-11-07 18:15:10,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:15:10,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:15:10,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:15:10,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:15:10,977 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:15:10,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:15:10" (1/1) ... [2018-11-07 18:15:10,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2cf48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:10, skipping insertion in model container [2018-11-07 18:15:10,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:15:10" (1/1) ... [2018-11-07 18:15:10,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:15:11,097 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:15:11,914 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:15:11,919 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:15:12,180 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:15:12,204 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:15:12,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12 WrapperNode [2018-11-07 18:15:12,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:15:12,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:15:12,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:15:12,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:15:12,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:15:12,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:15:12,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:15:12,396 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:15:12,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (1/1) ... [2018-11-07 18:15:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:15:12,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:15:12,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:15:12,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:15:12,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (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 18:15:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:15:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:15:12,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:15:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:15:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:15:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:15:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:15:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:15:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:15:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:15:12,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:15:18,538 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:15:18,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:15:18 BoogieIcfgContainer [2018-11-07 18:15:18,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:15:18,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:15:18,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:15:18,544 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:15:18,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:15:10" (1/3) ... [2018-11-07 18:15:18,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9fd87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:15:18, skipping insertion in model container [2018-11-07 18:15:18,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:15:12" (2/3) ... [2018-11-07 18:15:18,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9fd87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:15:18, skipping insertion in model container [2018-11-07 18:15:18,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:15:18" (3/3) ... [2018-11-07 18:15:18,548 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label30_false-unreach-call.c [2018-11-07 18:15:18,558 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:15:18,568 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:15:18,585 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:15:18,626 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:15:18,626 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:15:18,627 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:15:18,627 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:15:18,627 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:15:18,627 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:15:18,627 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:15:18,627 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:15:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 18:15:18,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-07 18:15:18,670 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:18,671 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] [2018-11-07 18:15:18,673 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:18,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:18,681 INFO L82 PathProgramCache]: Analyzing trace with hash 328599972, now seen corresponding path program 1 times [2018-11-07 18:15:18,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:18,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:18,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:18,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:18,744 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:19,136 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 18:15:19,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:15:19,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:15:19,145 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:19,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:15:19,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:15:19,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:15:19,172 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-07 18:15:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:25,464 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-07 18:15:25,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:15:25,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-07 18:15:25,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:25,493 INFO L225 Difference]: With dead ends: 1513 [2018-11-07 18:15:25,493 INFO L226 Difference]: Without dead ends: 1097 [2018-11-07 18:15:25,505 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:15:25,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-07 18:15:25,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-11-07 18:15:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-11-07 18:15:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-11-07 18:15:25,648 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 22 [2018-11-07 18:15:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:25,649 INFO L480 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-11-07 18:15:25,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:15:25,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-11-07 18:15:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-07 18:15:25,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:25,658 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:15:25,661 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:25,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:25,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1272949813, now seen corresponding path program 1 times [2018-11-07 18:15:25,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:25,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:25,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:25,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:25,663 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:15:25,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:15:25,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:15:25,998 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:26,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:15:26,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:15:26,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:15:26,001 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-11-07 18:15:30,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:30,700 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-11-07 18:15:30,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:15:30,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-11-07 18:15:30,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:30,725 INFO L225 Difference]: With dead ends: 3259 [2018-11-07 18:15:30,725 INFO L226 Difference]: Without dead ends: 2168 [2018-11-07 18:15:30,732 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 18:15:30,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-11-07 18:15:30,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-11-07 18:15:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-11-07 18:15:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-11-07 18:15:30,841 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 93 [2018-11-07 18:15:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:30,842 INFO L480 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-11-07 18:15:30,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:15:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-11-07 18:15:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-07 18:15:30,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:30,850 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:15:30,850 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:30,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:30,851 INFO L82 PathProgramCache]: Analyzing trace with hash 48893395, now seen corresponding path program 1 times [2018-11-07 18:15:30,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:30,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:30,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:30,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:30,852 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:15:31,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:15:31,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:15:31,151 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:31,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:15:31,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:15:31,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:15:31,153 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-11-07 18:15:35,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:35,806 INFO L93 Difference]: Finished difference Result 7053 states and 12688 transitions. [2018-11-07 18:15:35,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:15:35,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-11-07 18:15:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:35,843 INFO L225 Difference]: With dead ends: 7053 [2018-11-07 18:15:35,843 INFO L226 Difference]: Without dead ends: 4917 [2018-11-07 18:15:35,865 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 18:15:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2018-11-07 18:15:35,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4877. [2018-11-07 18:15:35,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4877 states. [2018-11-07 18:15:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 7891 transitions. [2018-11-07 18:15:36,009 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 7891 transitions. Word has length 121 [2018-11-07 18:15:36,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:36,010 INFO L480 AbstractCegarLoop]: Abstraction has 4877 states and 7891 transitions. [2018-11-07 18:15:36,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:15:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 7891 transitions. [2018-11-07 18:15:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-07 18:15:36,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:36,014 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:15:36,014 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:36,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:36,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1031937393, now seen corresponding path program 1 times [2018-11-07 18:15:36,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:36,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:36,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:36,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:36,016 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:36,291 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:15:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:15:36,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:15:36,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:15:36,694 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:36,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:15:36,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:15:36,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:15:36,695 INFO L87 Difference]: Start difference. First operand 4877 states and 7891 transitions. Second operand 6 states. [2018-11-07 18:15:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:39,482 INFO L93 Difference]: Finished difference Result 11909 states and 19972 transitions. [2018-11-07 18:15:39,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:15:39,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-07 18:15:39,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:39,536 INFO L225 Difference]: With dead ends: 11909 [2018-11-07 18:15:39,537 INFO L226 Difference]: Without dead ends: 7038 [2018-11-07 18:15:39,565 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:15:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2018-11-07 18:15:39,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6977. [2018-11-07 18:15:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6977 states. [2018-11-07 18:15:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 9942 transitions. [2018-11-07 18:15:39,772 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 9942 transitions. Word has length 139 [2018-11-07 18:15:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:39,773 INFO L480 AbstractCegarLoop]: Abstraction has 6977 states and 9942 transitions. [2018-11-07 18:15:39,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:15:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 9942 transitions. [2018-11-07 18:15:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-07 18:15:39,776 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:39,776 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:15:39,779 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:39,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:39,780 INFO L82 PathProgramCache]: Analyzing trace with hash 203002038, now seen corresponding path program 1 times [2018-11-07 18:15:39,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:39,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:39,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:39,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:39,781 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:15:40,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:15:40,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:15:40,162 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:40,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:15:40,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:15:40,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:15:40,165 INFO L87 Difference]: Start difference. First operand 6977 states and 9942 transitions. Second operand 6 states. [2018-11-07 18:15:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:15:43,859 INFO L93 Difference]: Finished difference Result 17709 states and 25496 transitions. [2018-11-07 18:15:43,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:15:43,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2018-11-07 18:15:43,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:15:43,913 INFO L225 Difference]: With dead ends: 17709 [2018-11-07 18:15:43,914 INFO L226 Difference]: Without dead ends: 10738 [2018-11-07 18:15:43,955 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 18:15:43,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10738 states. [2018-11-07 18:15:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10738 to 10702. [2018-11-07 18:15:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10702 states. [2018-11-07 18:15:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10702 states to 10702 states and 14504 transitions. [2018-11-07 18:15:44,217 INFO L78 Accepts]: Start accepts. Automaton has 10702 states and 14504 transitions. Word has length 186 [2018-11-07 18:15:44,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:15:44,220 INFO L480 AbstractCegarLoop]: Abstraction has 10702 states and 14504 transitions. [2018-11-07 18:15:44,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:15:44,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10702 states and 14504 transitions. [2018-11-07 18:15:44,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-11-07 18:15:44,224 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:15:44,225 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:44,225 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:15:44,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:44,225 INFO L82 PathProgramCache]: Analyzing trace with hash 773533269, now seen corresponding path program 1 times [2018-11-07 18:15:44,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:15:44,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:44,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:15:44,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:15:44,227 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:15:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:15:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 83 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 18:15:44,579 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:15:44,579 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:15:44,580 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-11-07 18:15:44,583 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:15:44,634 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:15:44,634 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:15:45,511 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:15:45,514 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 18:15:45,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:15:45,564 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:15:46,333 INFO L227 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 77.48% of their original sizes. [2018-11-07 18:15:46,333 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:15:48,396 INFO L415 sIntCurrentIteration]: We unified 222 AI predicates to 222 [2018-11-07 18:15:48,396 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:15:48,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:15:48,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-07 18:15:48,398 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:48,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 18:15:48,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 18:15:48,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-07 18:15:48,400 INFO L87 Difference]: Start difference. First operand 10702 states and 14504 transitions. Second operand 11 states. [2018-11-07 18:15:54,665 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:16:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:16:14,117 INFO L93 Difference]: Finished difference Result 21741 states and 29408 transitions. [2018-11-07 18:16:14,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 18:16:14,117 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2018-11-07 18:16:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:16:14,159 INFO L225 Difference]: With dead ends: 21741 [2018-11-07 18:16:14,159 INFO L226 Difference]: Without dead ends: 11045 [2018-11-07 18:16:14,192 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 227 GetRequests, 177 SyntacticMatches, 36 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-07 18:16:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2018-11-07 18:16:14,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 11040. [2018-11-07 18:16:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11040 states. [2018-11-07 18:16:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11040 states to 11040 states and 14851 transitions. [2018-11-07 18:16:14,417 INFO L78 Accepts]: Start accepts. Automaton has 11040 states and 14851 transitions. Word has length 223 [2018-11-07 18:16:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:16:14,418 INFO L480 AbstractCegarLoop]: Abstraction has 11040 states and 14851 transitions. [2018-11-07 18:16:14,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 18:16:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 11040 states and 14851 transitions. [2018-11-07 18:16:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-11-07 18:16:14,425 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:16:14,425 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:16:14,426 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:16:14,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:14,426 INFO L82 PathProgramCache]: Analyzing trace with hash -159997069, now seen corresponding path program 1 times [2018-11-07 18:16:14,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:16:14,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:16:14,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:16:14,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:16:14,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:16:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:16:14,777 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-07 18:16:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 117 proven. 116 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-07 18:16:15,261 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:16:15,261 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:16:15,262 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2018-11-07 18:16:15,262 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:16:15,267 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:16:15,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:16:15,358 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:16:15,638 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:16:15,639 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 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 18:16:15,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:15,645 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:16:16,267 INFO L227 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 18:16:16,268 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:16:18,162 INFO L415 sIntCurrentIteration]: We unified 314 AI predicates to 314 [2018-11-07 18:16:18,162 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:16:18,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:16:18,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [7] total 27 [2018-11-07 18:16:18,163 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:16:18,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 18:16:18,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 18:16:18,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2018-11-07 18:16:18,165 INFO L87 Difference]: Start difference. First operand 11040 states and 14851 transitions. Second operand 22 states. [2018-11-07 18:16:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:16:44,595 INFO L93 Difference]: Finished difference Result 23446 states and 31372 transitions. [2018-11-07 18:16:44,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-07 18:16:44,595 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 315 [2018-11-07 18:16:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:16:44,639 INFO L225 Difference]: With dead ends: 23446 [2018-11-07 18:16:44,639 INFO L226 Difference]: Without dead ends: 12750 [2018-11-07 18:16:44,663 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 328 GetRequests, 269 SyntacticMatches, 25 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=235, Invalid=1025, Unknown=0, NotChecked=0, Total=1260 [2018-11-07 18:16:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12750 states. [2018-11-07 18:16:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12750 to 11778. [2018-11-07 18:16:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11778 states. [2018-11-07 18:16:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11778 states to 11778 states and 15687 transitions. [2018-11-07 18:16:44,892 INFO L78 Accepts]: Start accepts. Automaton has 11778 states and 15687 transitions. Word has length 315 [2018-11-07 18:16:44,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:16:44,893 INFO L480 AbstractCegarLoop]: Abstraction has 11778 states and 15687 transitions. [2018-11-07 18:16:44,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 18:16:44,893 INFO L276 IsEmpty]: Start isEmpty. Operand 11778 states and 15687 transitions. [2018-11-07 18:16:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-11-07 18:16:44,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:16:44,902 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 18:16:44,903 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:16:44,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:44,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1258796923, now seen corresponding path program 1 times [2018-11-07 18:16:44,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:16:44,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:16:44,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:16:44,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:16:44,905 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:16:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:16:45,699 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-07 18:16:46,114 WARN L179 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-07 18:16:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 176 proven. 70 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-07 18:16:46,716 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:16:46,716 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:16:46,717 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 352 with the following transitions: [2018-11-07 18:16:46,717 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:16:46,722 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:16:46,722 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:16:46,837 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:16:47,215 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:16:47,216 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 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 18:16:47,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:16:47,242 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:16:47,910 INFO L227 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 18:16:47,910 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:16:49,030 INFO L415 sIntCurrentIteration]: We unified 350 AI predicates to 350 [2018-11-07 18:16:49,031 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:16:49,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:16:49,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [13] total 34 [2018-11-07 18:16:49,031 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:16:49,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-07 18:16:49,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-07 18:16:49,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2018-11-07 18:16:49,033 INFO L87 Difference]: Start difference. First operand 11778 states and 15687 transitions. Second operand 23 states. [2018-11-07 18:17:32,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:17:32,724 INFO L93 Difference]: Finished difference Result 25424 states and 33648 transitions. [2018-11-07 18:17:32,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-07 18:17:32,724 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 351 [2018-11-07 18:17:32,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:17:32,791 INFO L225 Difference]: With dead ends: 25424 [2018-11-07 18:17:32,791 INFO L226 Difference]: Without dead ends: 14332 [2018-11-07 18:17:32,816 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 369 GetRequests, 314 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=317, Invalid=1405, Unknown=0, NotChecked=0, Total=1722 [2018-11-07 18:17:32,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2018-11-07 18:17:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 13063. [2018-11-07 18:17:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13063 states. [2018-11-07 18:17:33,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13063 states to 13063 states and 17099 transitions. [2018-11-07 18:17:33,091 INFO L78 Accepts]: Start accepts. Automaton has 13063 states and 17099 transitions. Word has length 351 [2018-11-07 18:17:33,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:17:33,092 INFO L480 AbstractCegarLoop]: Abstraction has 13063 states and 17099 transitions. [2018-11-07 18:17:33,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-07 18:17:33,092 INFO L276 IsEmpty]: Start isEmpty. Operand 13063 states and 17099 transitions. [2018-11-07 18:17:33,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-11-07 18:17:33,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:17:33,109 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:17:33,109 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:17:33,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:17:33,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1066270968, now seen corresponding path program 1 times [2018-11-07 18:17:33,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:17:33,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:17:33,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:17:33,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:17:33,111 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:17:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:17:33,542 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-11-07 18:17:33,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:17:33,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:17:33,543 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:17:33,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:17:33,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:17:33,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:17:33,547 INFO L87 Difference]: Start difference. First operand 13063 states and 17099 transitions. Second operand 4 states. [2018-11-07 18:17:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:17:36,831 INFO L93 Difference]: Finished difference Result 38350 states and 51634 transitions. [2018-11-07 18:17:36,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:17:36,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 446 [2018-11-07 18:17:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:17:36,881 INFO L225 Difference]: With dead ends: 38350 [2018-11-07 18:17:36,882 INFO L226 Difference]: Without dead ends: 18593 [2018-11-07 18:17:36,955 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:17:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18593 states. [2018-11-07 18:17:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18593 to 18251. [2018-11-07 18:17:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18251 states. [2018-11-07 18:17:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18251 states to 18251 states and 20769 transitions. [2018-11-07 18:17:37,238 INFO L78 Accepts]: Start accepts. Automaton has 18251 states and 20769 transitions. Word has length 446 [2018-11-07 18:17:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:17:37,239 INFO L480 AbstractCegarLoop]: Abstraction has 18251 states and 20769 transitions. [2018-11-07 18:17:37,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:17:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 18251 states and 20769 transitions. [2018-11-07 18:17:37,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2018-11-07 18:17:37,289 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:17:37,289 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:17:37,289 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:17:37,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:17:37,290 INFO L82 PathProgramCache]: Analyzing trace with hash -357730898, now seen corresponding path program 1 times [2018-11-07 18:17:37,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:17:37,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:17:37,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:17:37,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:17:37,291 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:17:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:17:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 328 proven. 223 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-11-07 18:17:45,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:17:45,045 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:17:45,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 759 with the following transitions: [2018-11-07 18:17:45,046 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:17:45,058 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:17:45,058 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:17:45,548 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:17:45,548 INFO L272 AbstractInterpreter]: Visited 251 different actions 496 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:17:45,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:17:45,574 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:17:46,251 INFO L227 lantSequenceWeakener]: Weakened 258 states. On average, predicates are now at 77.58% of their original sizes. [2018-11-07 18:17:46,252 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:17:46,837 INFO L415 sIntCurrentIteration]: We unified 757 AI predicates to 757 [2018-11-07 18:17:46,837 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:17:46,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:17:46,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-07 18:17:46,838 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:17:46,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 18:17:46,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 18:17:46,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-11-07 18:17:46,840 INFO L87 Difference]: Start difference. First operand 18251 states and 20769 transitions. Second operand 22 states. [2018-11-07 18:17:59,364 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:18:13,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:18:13,310 INFO L93 Difference]: Finished difference Result 36798 states and 41900 transitions. [2018-11-07 18:18:13,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 18:18:13,310 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 758 [2018-11-07 18:18:13,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:18:13,355 INFO L225 Difference]: With dead ends: 36798 [2018-11-07 18:18:13,355 INFO L226 Difference]: Without dead ends: 18891 [2018-11-07 18:18:13,391 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 773 GetRequests, 727 SyntacticMatches, 10 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2018-11-07 18:18:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18891 states. [2018-11-07 18:18:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18891 to 18882. [2018-11-07 18:18:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18882 states. [2018-11-07 18:18:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18882 states to 18882 states and 21415 transitions. [2018-11-07 18:18:13,688 INFO L78 Accepts]: Start accepts. Automaton has 18882 states and 21415 transitions. Word has length 758 [2018-11-07 18:18:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:18:13,688 INFO L480 AbstractCegarLoop]: Abstraction has 18882 states and 21415 transitions. [2018-11-07 18:18:13,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 18:18:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 18882 states and 21415 transitions. [2018-11-07 18:18:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2018-11-07 18:18:13,738 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:18:13,739 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:13,739 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:18:13,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:18:13,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1059366942, now seen corresponding path program 1 times [2018-11-07 18:18:13,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:18:13,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:18:13,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:18:13,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:18:13,742 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:18:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:18:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 328 proven. 223 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-11-07 18:18:14,483 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:18:14,483 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:18:14,484 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 767 with the following transitions: [2018-11-07 18:18:14,484 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:18:14,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:18:14,489 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:18:17,647 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:18:17,647 INFO L272 AbstractInterpreter]: Visited 259 different actions 3042 times. Merged at 5 different actions 55 times. Widened at 1 different actions 7 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:18:17,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:18:17,658 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:18:18,982 INFO L227 lantSequenceWeakener]: Weakened 110 states. On average, predicates are now at 77.77% of their original sizes. [2018-11-07 18:18:18,983 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:18:19,370 INFO L415 sIntCurrentIteration]: We unified 765 AI predicates to 765 [2018-11-07 18:18:19,370 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:18:19,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:18:19,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-07 18:18:19,371 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:18:19,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-07 18:18:19,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-07 18:18:19,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2018-11-07 18:18:19,373 INFO L87 Difference]: Start difference. First operand 18882 states and 21415 transitions. Second operand 23 states. [2018-11-07 18:18:29,841 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:18:43,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:18:43,100 INFO L93 Difference]: Finished difference Result 37434 states and 42580 transitions. [2018-11-07 18:18:43,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 18:18:43,100 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 766 [2018-11-07 18:18:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:18:43,146 INFO L225 Difference]: With dead ends: 37434 [2018-11-07 18:18:43,146 INFO L226 Difference]: Without dead ends: 19527 [2018-11-07 18:18:43,175 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 776 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2018-11-07 18:18:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19527 states. [2018-11-07 18:18:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19527 to 19519. [2018-11-07 18:18:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19519 states. [2018-11-07 18:18:43,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19519 states to 19519 states and 22103 transitions. [2018-11-07 18:18:43,457 INFO L78 Accepts]: Start accepts. Automaton has 19519 states and 22103 transitions. Word has length 766 [2018-11-07 18:18:43,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:18:43,458 INFO L480 AbstractCegarLoop]: Abstraction has 19519 states and 22103 transitions. [2018-11-07 18:18:43,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-07 18:18:43,458 INFO L276 IsEmpty]: Start isEmpty. Operand 19519 states and 22103 transitions. [2018-11-07 18:18:43,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2018-11-07 18:18:43,496 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:18:43,496 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:43,497 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:18:43,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:18:43,497 INFO L82 PathProgramCache]: Analyzing trace with hash 564125973, now seen corresponding path program 1 times [2018-11-07 18:18:43,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:18:43,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:18:43,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:18:43,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:18:43,499 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:18:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:18:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 354 proven. 734 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2018-11-07 18:18:46,134 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:18:46,134 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:18:46,135 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 868 with the following transitions: [2018-11-07 18:18:46,135 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 18:18:46,139 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:18:46,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:18:46,228 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 18:18:46,559 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 18:18:46,560 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 18:18:46,561 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 18:18:46,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:18:46,562 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 18:18:46,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:18:46,575 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:18:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:18:46,832 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 18:18:46,894 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 18:18:47,095 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 18:18:47,096 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:18:47,101 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:18:47,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:18:47 BoogieIcfgContainer [2018-11-07 18:18:47,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:18:47,102 INFO L168 Benchmark]: Toolchain (without parser) took 216132.42 ms. Allocated memory was 1.5 GB in the beginning and 5.2 GB in the end (delta: 3.7 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 180.2 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-11-07 18:18:47,103 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:18:47,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1233.75 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 18:18:47,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.32 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -848.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-07 18:18:47,106 INFO L168 Benchmark]: Boogie Preprocessor took 201.33 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:18:47,106 INFO L168 Benchmark]: RCFGBuilder took 5942.23 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.7 MB). Peak memory consumption was 256.7 MB. Max. memory is 7.1 GB. [2018-11-07 18:18:47,109 INFO L168 Benchmark]: TraceAbstraction took 208561.03 ms. Allocated memory was 2.2 GB in the beginning and 5.2 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 1.2 GB in the end (delta: 697.6 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-11-07 18:18:47,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1233.75 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 188.32 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -848.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 201.33 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5942.23 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.7 MB). Peak memory consumption was 256.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208561.03 ms. Allocated memory was 2.2 GB in the beginning and 5.2 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 1.2 GB in the end (delta: 697.6 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was analyzing trace of length 868 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 12 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 208.4s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 172.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2339 SDtfs, 29038 SDslu, 2028 SDs, 0 SdLazy, 31335 SolverSat, 5393 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.0s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2524 GetRequests, 2246 SyntacticMatches, 90 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2069 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19519occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.0s AbstIntTime, 6 AbstIntIterations, 5 AbstIntStrong, 0.9976473779602849 AbsIntWeakeningRatio, 0.0739202657807309 AbsIntAvgWeakeningVarsNumRemoved, 12.192691029900333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 2768 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 7.0s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 3420 NumberOfCodeBlocks, 3420 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3409 ConstructedInterpolants, 0 QuantifiedInterpolants, 5124479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 2856/3501 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown