java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 23:56:58,178 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 23:56:58,180 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 23:56:58,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 23:56:58,196 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 23:56:58,197 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 23:56:58,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 23:56:58,201 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 23:56:58,203 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 23:56:58,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 23:56:58,213 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 23:56:58,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 23:56:58,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 23:56:58,216 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 23:56:58,220 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 23:56:58,222 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 23:56:58,222 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 23:56:58,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 23:56:58,228 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 23:56:58,233 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 23:56:58,235 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 23:56:58,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 23:56:58,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 23:56:58,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 23:56:58,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 23:56:58,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 23:56:58,244 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 23:56:58,247 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 23:56:58,248 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 23:56:58,251 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 23:56:58,251 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 23:56:58,253 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 23:56:58,253 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 23:56:58,254 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 23:56:58,255 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 23:56:58,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 23:56:58,256 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-06 23:56:58,287 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 23:56:58,287 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 23:56:58,289 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 23:56:58,289 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-06 23:56:58,289 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-06 23:56:58,290 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-06 23:56:58,290 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-06 23:56:58,290 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-06 23:56:58,290 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-06 23:56:58,290 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-06 23:56:58,291 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-06 23:56:58,291 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-06 23:56:58,291 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 23:56:58,292 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 23:56:58,292 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 23:56:58,292 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 23:56:58,293 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 23:56:58,293 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 23:56:58,293 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 23:56:58,293 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 23:56:58,293 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 23:56:58,294 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 23:56:58,294 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 23:56:58,294 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 23:56:58,294 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:56:58,294 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 23:56:58,295 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 23:56:58,296 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 23:56:58,296 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-06 23:56:58,296 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 23:56:58,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 23:56:58,297 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 23:56:58,297 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 23:56:58,297 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-06 23:56:58,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 23:56:58,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 23:56:58,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 23:56:58,374 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 23:56:58,375 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 23:56:58,376 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label55_false-unreach-call.c [2018-11-06 23:56:58,447 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c431f8aef/e7fc98e514894368b387175b21f16695/FLAG5b63030bc [2018-11-06 23:56:59,067 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 23:56:59,068 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label55_false-unreach-call.c [2018-11-06 23:56:59,093 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c431f8aef/e7fc98e514894368b387175b21f16695/FLAG5b63030bc [2018-11-06 23:56:59,115 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c431f8aef/e7fc98e514894368b387175b21f16695 [2018-11-06 23:56:59,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 23:56:59,131 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 23:56:59,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 23:56:59,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 23:56:59,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 23:56:59,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:56:59,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e28226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59, skipping insertion in model container [2018-11-06 23:56:59,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:56:59,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 23:56:59,239 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 23:56:59,750 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:56:59,755 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 23:56:59,881 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:56:59,900 INFO L193 MainTranslator]: Completed translation [2018-11-06 23:56:59,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59 WrapperNode [2018-11-06 23:56:59,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 23:56:59,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 23:56:59,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 23:56:59,903 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 23:56:59,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:56:59,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 23:57:00,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 23:57:00,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 23:57:00,038 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 23:57:00,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (1/1) ... [2018-11-06 23:57:00,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 23:57:00,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 23:57:00,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 23:57:00,127 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 23:57:00,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (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 [2018-11-06 23:57:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 23:57:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-06 23:57:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-06 23:57:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-06 23:57:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-06 23:57:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 23:57:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 23:57:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-06 23:57:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-06 23:57:03,470 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 23:57:03,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:57:03 BoogieIcfgContainer [2018-11-06 23:57:03,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 23:57:03,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 23:57:03,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 23:57:03,476 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 23:57:03,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:56:59" (1/3) ... [2018-11-06 23:57:03,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5884ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:57:03, skipping insertion in model container [2018-11-06 23:57:03,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:56:59" (2/3) ... [2018-11-06 23:57:03,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5884ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:57:03, skipping insertion in model container [2018-11-06 23:57:03,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:57:03" (3/3) ... [2018-11-06 23:57:03,481 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label55_false-unreach-call.c [2018-11-06 23:57:03,491 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 23:57:03,504 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 23:57:03,523 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 23:57:03,565 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 23:57:03,566 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 23:57:03,566 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 23:57:03,566 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 23:57:03,566 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 23:57:03,568 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 23:57:03,568 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 23:57:03,568 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 23:57:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-06 23:57:03,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-06 23:57:03,604 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:03,605 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:03,608 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:03,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:03,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1027379239, now seen corresponding path program 1 times [2018-11-06 23:57:03,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:03,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:03,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:03,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:03,669 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:04,012 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-06 23:57:04,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:57:04,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:57:04,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:57:04,033 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:04,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:57:04,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:57:04,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:04,059 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-06 23:57:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:57:05,903 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-06 23:57:05,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:57:05,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-06 23:57:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:57:05,925 INFO L225 Difference]: With dead ends: 574 [2018-11-06 23:57:05,925 INFO L226 Difference]: Without dead ends: 356 [2018-11-06 23:57:05,934 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:57:05,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-06 23:57:06,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-06 23:57:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-06 23:57:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-11-06 23:57:06,015 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 25 [2018-11-06 23:57:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:57:06,016 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-11-06 23:57:06,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:57:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-11-06 23:57:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-06 23:57:06,023 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:57:06,024 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:57:06,024 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:57:06,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:06,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1044812780, now seen corresponding path program 1 times [2018-11-06 23:57:06,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:57:06,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:06,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:57:06,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:57:06,027 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:57:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:57:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-06 23:57:06,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:57:06,467 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:57:06,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-11-06 23:57:06,471 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [101], [103], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-06 23:57:06,561 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:57:06,561 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:57:09,588 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:57:09,590 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-06 23:57:09,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:57:09,601 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:57:12,001 INFO L227 lantSequenceWeakener]: Weakened 98 states. On average, predicates are now at 73.58% of their original sizes. [2018-11-06 23:57:12,001 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:57:16,011 INFO L415 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-11-06 23:57:16,011 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:57:16,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:57:16,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-06 23:57:16,013 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:57:16,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 23:57:16,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 23:57:16,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-06 23:57:16,015 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-11-06 23:57:31,330 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:58:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:58:08,958 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-11-06 23:58:08,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-06 23:58:08,958 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 113 [2018-11-06 23:58:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:58:08,964 INFO L225 Difference]: With dead ends: 855 [2018-11-06 23:58:08,964 INFO L226 Difference]: Without dead ends: 505 [2018-11-06 23:58:08,969 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 116 GetRequests, 87 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-06 23:58:08,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-11-06 23:58:09,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-11-06 23:58:09,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-11-06 23:58:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-11-06 23:58:09,036 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 113 [2018-11-06 23:58:09,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:58:09,036 INFO L480 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-11-06 23:58:09,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 23:58:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-11-06 23:58:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-11-06 23:58:09,041 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:58:09,042 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:58:09,042 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:58:09,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:58:09,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1654373498, now seen corresponding path program 1 times [2018-11-06 23:58:09,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:58:09,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:58:09,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:58:09,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:58:09,044 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:58:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:58:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-06 23:58:09,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:58:09,375 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:58:09,375 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-11-06 23:58:09,375 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [101], [103], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-06 23:58:09,381 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:58:09,381 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:58:10,702 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-06 23:58:24,035 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:58:24,035 INFO L272 AbstractInterpreter]: Visited 96 different actions 546 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-06 23:58:24,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:58:24,043 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:58:26,897 INFO L227 lantSequenceWeakener]: Weakened 33 states. On average, predicates are now at 75.3% of their original sizes. [2018-11-06 23:58:26,898 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:58:32,296 INFO L415 sIntCurrentIteration]: We unified 183 AI predicates to 183 [2018-11-06 23:58:32,296 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:58:32,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:58:32,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-11-06 23:58:32,297 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:58:32,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-06 23:58:32,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-06 23:58:32,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-11-06 23:58:32,299 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 16 states. [2018-11-07 00:00:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:00:47,093 INFO L93 Difference]: Finished difference Result 1233 states and 2047 transitions. [2018-11-07 00:00:47,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 00:00:47,094 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 184 [2018-11-07 00:00:47,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:00:47,100 INFO L225 Difference]: With dead ends: 1233 [2018-11-07 00:00:47,100 INFO L226 Difference]: Without dead ends: 883 [2018-11-07 00:00:47,103 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2018-11-07 00:00:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2018-11-07 00:00:47,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 800. [2018-11-07 00:00:47,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2018-11-07 00:00:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1087 transitions. [2018-11-07 00:00:47,228 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1087 transitions. Word has length 184 [2018-11-07 00:00:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:00:47,229 INFO L480 AbstractCegarLoop]: Abstraction has 800 states and 1087 transitions. [2018-11-07 00:00:47,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 00:00:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1087 transitions. [2018-11-07 00:00:47,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-11-07 00:00:47,233 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:00:47,233 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:00:47,234 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:00:47,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:00:47,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1418502721, now seen corresponding path program 1 times [2018-11-07 00:00:47,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:00:47,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:00:47,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:00:47,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:00:47,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:00:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:00:47,578 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:00:47,729 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 00:00:47,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:00:47,730 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:00:47,730 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-11-07 00:00:47,730 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [101], [103], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 00:00:47,734 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:00:47,735 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:00:49,305 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 00:00:57,136 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 00:00:57,137 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 00:00:57,138 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 00:00:57,138 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:00:57,138 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:00:57,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:00:57,149 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:00:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:00:57,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:00:57,276 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 00:00:57,477 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:00:57,478 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:00:57,483 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:00:57,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:00:57 BoogieIcfgContainer [2018-11-07 00:00:57,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:00:57,484 INFO L168 Benchmark]: Toolchain (without parser) took 238354.19 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 00:00:57,486 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:00:57,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:57,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -801.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:57,488 INFO L168 Benchmark]: Boogie Preprocessor took 88.84 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:00:57,488 INFO L168 Benchmark]: RCFGBuilder took 3344.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.4 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:00:57,489 INFO L168 Benchmark]: TraceAbstraction took 234011.54 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -467.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 00:00:57,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 135.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -801.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.84 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3344.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.4 MB). Peak memory consumption was 105.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234011.54 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -467.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was analyzing trace of length 194 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 233.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 189.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 1784 SDslu, 307 SDs, 0 SdLazy, 2534 SolverSat, 593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 311 GetRequests, 258 SyntacticMatches, 19 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 27.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9931589290100712 AbsIntWeakeningRatio, 0.15593220338983052 AbsIntAvgWeakeningVarsNumRemoved, 61.0271186440678 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 88 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 147959 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/125 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown