java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label11_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:34:11,405 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:34:11,407 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:34:11,419 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:34:11,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:34:11,421 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:34:11,422 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:34:11,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:34:11,425 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:34:11,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:34:11,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:34:11,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:34:11,432 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:34:11,433 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:34:11,436 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:34:11,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:34:11,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:34:11,445 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:34:11,447 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:34:11,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:34:11,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:34:11,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:34:11,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:34:11,461 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:34:11,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:34:11,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:34:11,463 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:34:11,464 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:34:11,466 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:34:11,467 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:34:11,468 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:34:11,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 19:34:11,473 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:34:11,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:34:11,500 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:34:11,501 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:34:11,502 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:34:11,502 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:34:11,503 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:34:11,503 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:34:11,503 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:34:11,503 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:34:11,503 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:34:11,503 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:34:11,505 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:34:11,506 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:34:11,506 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:34:11,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:34:11,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:34:11,506 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:34:11,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:34:11,507 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:34:11,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:34:11,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:34:11,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:34:11,509 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:34:11,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:34:11,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:34:11,509 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:34:11,509 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:34:11,510 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:34:11,510 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:34:11,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:34:11,510 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:34:11,510 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:34:11,510 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:34:11,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:34:11,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:34:11,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:34:11,595 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:34:11,596 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:34:11,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label11_false-unreach-call_false-termination.c [2018-07-23 19:34:11,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41b9369f/b50fa201c976454e99f20cfd433b320a/FLAG11fcb7d9c [2018-07-23 19:34:12,277 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:34:12,278 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label11_false-unreach-call_false-termination.c [2018-07-23 19:34:12,300 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41b9369f/b50fa201c976454e99f20cfd433b320a/FLAG11fcb7d9c [2018-07-23 19:34:12,322 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41b9369f/b50fa201c976454e99f20cfd433b320a [2018-07-23 19:34:12,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:34:12,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:34:12,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:34:12,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:34:12,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:34:12,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:34:12" (1/1) ... [2018-07-23 19:34:12,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4313de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:12, skipping insertion in model container [2018-07-23 19:34:12,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:34:12" (1/1) ... [2018-07-23 19:34:12,546 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:34:12,895 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:34:12,914 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:34:13,067 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:34:13,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13 WrapperNode [2018-07-23 19:34:13,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:34:13,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:34:13,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:34:13,124 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:34:13,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:34:13,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:34:13,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:34:13,273 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:34:13,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (1/1) ... [2018-07-23 19:34:13,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:34:13,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:34:13,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:34:13,585 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:34:13,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (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 [2018-07-23 19:34:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:34:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:34:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:34:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:34:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:34:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:34:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 19:34:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 19:34:17,636 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:34:17,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:34:17 BoogieIcfgContainer [2018-07-23 19:34:17,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:34:17,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:34:17,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:34:17,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:34:17,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:34:12" (1/3) ... [2018-07-23 19:34:17,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587e3cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:34:17, skipping insertion in model container [2018-07-23 19:34:17,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:34:13" (2/3) ... [2018-07-23 19:34:17,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587e3cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:34:17, skipping insertion in model container [2018-07-23 19:34:17,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:34:17" (3/3) ... [2018-07-23 19:34:17,665 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label11_false-unreach-call_false-termination.c [2018-07-23 19:34:17,674 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:34:17,684 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:34:17,745 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:34:17,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:34:17,746 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:34:17,747 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:34:17,747 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:34:17,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:34:17,747 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:34:17,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:34:17,748 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:34:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-23 19:34:17,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 19:34:17,786 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:34:17,787 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:34:17,788 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:34:17,793 INFO L82 PathProgramCache]: Analyzing trace with hash -264330788, now seen corresponding path program 1 times [2018-07-23 19:34:17,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:34:17,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:17,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:34:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:17,853 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:34:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:34:18,237 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:34:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:34:18,264 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:34:18,265 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:34:18,265 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:34:18,271 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:34:18,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:34:18,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:34:18,288 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-07-23 19:34:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:34:20,405 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-07-23 19:34:20,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:34:20,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-07-23 19:34:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:34:20,429 INFO L225 Difference]: With dead ends: 691 [2018-07-23 19:34:20,429 INFO L226 Difference]: Without dead ends: 434 [2018-07-23 19:34:20,439 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:34:20,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-07-23 19:34:20,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-07-23 19:34:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-23 19:34:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 767 transitions. [2018-07-23 19:34:20,563 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 767 transitions. Word has length 28 [2018-07-23 19:34:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:34:20,564 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 767 transitions. [2018-07-23 19:34:20,564 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:34:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 767 transitions. [2018-07-23 19:34:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 19:34:20,573 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:34:20,575 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:34:20,575 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:34:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash 648059571, now seen corresponding path program 1 times [2018-07-23 19:34:20,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:34:20,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:20,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:34:20,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:20,579 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:34:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:34:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:34:21,033 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:34:21,033 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:34:21,033 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:34:21,036 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:34:21,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:34:21,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:34:21,037 INFO L87 Difference]: Start difference. First operand 434 states and 767 transitions. Second operand 5 states. [2018-07-23 19:34:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:34:24,999 INFO L93 Difference]: Finished difference Result 1416 states and 2580 transitions. [2018-07-23 19:34:25,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:34:25,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2018-07-23 19:34:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:34:25,012 INFO L225 Difference]: With dead ends: 1416 [2018-07-23 19:34:25,012 INFO L226 Difference]: Without dead ends: 988 [2018-07-23 19:34:25,019 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:34:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2018-07-23 19:34:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 973. [2018-07-23 19:34:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-07-23 19:34:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1540 transitions. [2018-07-23 19:34:25,133 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1540 transitions. Word has length 105 [2018-07-23 19:34:25,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:34:25,134 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1540 transitions. [2018-07-23 19:34:25,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:34:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1540 transitions. [2018-07-23 19:34:25,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-23 19:34:25,151 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:34:25,151 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:34:25,151 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:34:25,152 INFO L82 PathProgramCache]: Analyzing trace with hash -295199181, now seen corresponding path program 1 times [2018-07-23 19:34:25,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:34:25,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:25,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:34:25,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:25,154 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:34:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:34:25,476 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:34:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:34:25,545 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:34:25,546 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:34:25,546 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:34:25,547 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:34:25,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:34:25,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:34:25,547 INFO L87 Difference]: Start difference. First operand 973 states and 1540 transitions. Second operand 6 states. [2018-07-23 19:34:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:34:29,410 INFO L93 Difference]: Finished difference Result 2353 states and 3939 transitions. [2018-07-23 19:34:29,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:34:29,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-07-23 19:34:29,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:34:29,434 INFO L225 Difference]: With dead ends: 2353 [2018-07-23 19:34:29,434 INFO L226 Difference]: Without dead ends: 1386 [2018-07-23 19:34:29,439 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:34:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2018-07-23 19:34:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1352. [2018-07-23 19:34:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-07-23 19:34:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2126 transitions. [2018-07-23 19:34:29,514 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2126 transitions. Word has length 169 [2018-07-23 19:34:29,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:34:29,515 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 2126 transitions. [2018-07-23 19:34:29,516 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:34:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2126 transitions. [2018-07-23 19:34:29,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-23 19:34:29,523 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:34:29,524 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:34:29,524 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:34:29,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1070144587, now seen corresponding path program 1 times [2018-07-23 19:34:29,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:34:29,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:29,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:34:29,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:34:29,527 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:34:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:34:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 117 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:34:29,934 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:34:29,935 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:34:29,936 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-07-23 19:34:29,938 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [574], [972], [973], [974], [975], [977], [978] [2018-07-23 19:34:30,007 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:34:30,008 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:34:33,600 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:34:33,602 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:34:33,613 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:34:36,600 INFO L232 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 77.63% of their original sizes. [2018-07-23 19:34:36,600 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:34:37,023 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:34:37,023 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:34:37,024 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 19:34:37,024 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:34:37,025 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:34:37,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:34:37,025 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:34:37,025 INFO L87 Difference]: Start difference. First operand 1352 states and 2126 transitions. Second operand 7 states. [2018-07-23 19:34:47,444 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:35:06,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:35:06,584 INFO L93 Difference]: Finished difference Result 2883 states and 4473 transitions. [2018-07-23 19:35:06,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:35:06,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2018-07-23 19:35:06,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:35:06,594 INFO L225 Difference]: With dead ends: 2883 [2018-07-23 19:35:06,594 INFO L226 Difference]: Without dead ends: 1537 [2018-07-23 19:35:06,599 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:35:06,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2018-07-23 19:35:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1535. [2018-07-23 19:35:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1535 states. [2018-07-23 19:35:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2316 transitions. [2018-07-23 19:35:06,645 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2316 transitions. Word has length 189 [2018-07-23 19:35:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:35:06,646 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2316 transitions. [2018-07-23 19:35:06,646 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:35:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2316 transitions. [2018-07-23 19:35:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-07-23 19:35:06,651 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:35:06,651 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:35:06,652 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:35:06,652 INFO L82 PathProgramCache]: Analyzing trace with hash -257951772, now seen corresponding path program 1 times [2018-07-23 19:35:06,652 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:35:06,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:35:06,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:35:06,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:35:06,654 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:35:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:35:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 150 proven. 146 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 19:35:07,374 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:35:07,374 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:35:07,375 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-07-23 19:35:07,375 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [574], [575], [578], [972], [973], [974], [975], [977], [978] [2018-07-23 19:35:07,382 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:35:07,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:35:15,797 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:35:15,797 INFO L272 AbstractInterpreter]: Visited 94 different actions 181 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:35:15,804 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:35:22,310 INFO L232 lantSequenceWeakener]: Weakened 272 states. On average, predicates are now at 77.59% of their original sizes. [2018-07-23 19:35:22,311 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:35:23,476 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:35:23,477 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:35:23,477 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2018-07-23 19:35:23,477 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:35:23,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:35:23,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:35:23,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:35:23,479 INFO L87 Difference]: Start difference. First operand 1535 states and 2316 transitions. Second operand 11 states. [2018-07-23 19:36:00,342 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:36:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:36:23,813 INFO L93 Difference]: Finished difference Result 3253 states and 4895 transitions. [2018-07-23 19:36:23,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:36:23,813 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 274 [2018-07-23 19:36:23,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:36:23,822 INFO L225 Difference]: With dead ends: 3253 [2018-07-23 19:36:23,823 INFO L226 Difference]: Without dead ends: 1907 [2018-07-23 19:36:23,829 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 280 GetRequests, 248 SyntacticMatches, 16 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 19:36:23,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2018-07-23 19:36:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1904. [2018-07-23 19:36:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2018-07-23 19:36:23,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2703 transitions. [2018-07-23 19:36:23,885 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2703 transitions. Word has length 274 [2018-07-23 19:36:23,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:36:23,886 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2703 transitions. [2018-07-23 19:36:23,886 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:36:23,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2703 transitions. [2018-07-23 19:36:23,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-07-23 19:36:23,892 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:36:23,893 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:36:23,893 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:36:23,893 INFO L82 PathProgramCache]: Analyzing trace with hash -987351048, now seen corresponding path program 1 times [2018-07-23 19:36:23,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:36:23,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:36:23,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:36:23,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:36:23,895 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:36:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:36:24,162 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-23 19:36:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 122 proven. 125 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-07-23 19:36:24,389 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:36:24,389 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:36:24,389 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-07-23 19:36:24,390 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [574], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [682], [972], [973], [974], [975], [977], [978] [2018-07-23 19:36:24,395 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:36:24,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:36:45,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:36:45,042 INFO L272 AbstractInterpreter]: Visited 120 different actions 234 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:36:45,052 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:36:57,106 INFO L232 lantSequenceWeakener]: Weakened 298 states. On average, predicates are now at 77.57% of their original sizes. [2018-07-23 19:36:57,106 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:36:57,986 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:36:57,987 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:36:57,987 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-07-23 19:36:57,988 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:36:57,989 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:36:57,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:36:57,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:36:57,990 INFO L87 Difference]: Start difference. First operand 1904 states and 2703 transitions. Second operand 11 states. [2018-07-23 19:37:35,493 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:38:03,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:38:03,034 INFO L93 Difference]: Finished difference Result 3438 states and 5054 transitions. [2018-07-23 19:38:03,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 19:38:03,034 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 300 [2018-07-23 19:38:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:38:03,044 INFO L225 Difference]: With dead ends: 3438 [2018-07-23 19:38:03,045 INFO L226 Difference]: Without dead ends: 2092 [2018-07-23 19:38:03,051 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 307 GetRequests, 274 SyntacticMatches, 16 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-07-23 19:38:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2018-07-23 19:38:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2089. [2018-07-23 19:38:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2018-07-23 19:38:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2902 transitions. [2018-07-23 19:38:03,113 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2902 transitions. Word has length 300 [2018-07-23 19:38:03,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:38:03,114 INFO L471 AbstractCegarLoop]: Abstraction has 2089 states and 2902 transitions. [2018-07-23 19:38:03,114 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:38:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2902 transitions. [2018-07-23 19:38:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-07-23 19:38:03,121 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:38:03,121 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:38:03,121 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:38:03,122 INFO L82 PathProgramCache]: Analyzing trace with hash -673143668, now seen corresponding path program 1 times [2018-07-23 19:38:03,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:38:03,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:03,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:38:03,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:03,123 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:38:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:38:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-23 19:38:03,867 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:38:03,867 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:38:03,867 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 327 with the following transitions: [2018-07-23 19:38:03,868 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [682], [972], [973], [974], [975], [977], [978] [2018-07-23 19:38:03,879 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:38:03,879 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 19:38:08,954 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 19:38:08,955 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 19:38:08,956 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 19:38:08,956 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:38:08,956 INFO L191 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 [2018-07-23 19:38:08,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:38:08,965 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 19:38:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:38:09,109 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 19:38:09,151 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 19:38:09,352 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 19:38:09,353 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:38:09,358 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:38:09,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:38:09 BoogieIcfgContainer [2018-07-23 19:38:09,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:38:09,360 INFO L168 Benchmark]: Toolchain (without parser) took 237023.96 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 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 500.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:38:09,361 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-23 19:38:09,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.17 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-07-23 19:38:09,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.40 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 19:38:09,364 INFO L168 Benchmark]: Boogie Preprocessor took 311.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -876.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2018-07-23 19:38:09,365 INFO L168 Benchmark]: RCFGBuilder took 4052.60 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: 139.5 MB). Peak memory consumption was 139.5 MB. Max. memory is 7.1 GB. [2018-07-23 19:38:09,366 INFO L168 Benchmark]: TraceAbstraction took 231720.25 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 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 405.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:38:09,377 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 785.17 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 149.40 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 311.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -876.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4052.60 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: 139.5 MB). Peak memory consumption was 139.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231720.25 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 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 405.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 67). Cancelled while BasicCegarLoop was analyzing trace of length 327 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 231.6s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 165.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 998 SDtfs, 4157 SDslu, 1371 SDs, 0 SdLazy, 6975 SolverSat, 1098 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 801 GetRequests, 713 SyntacticMatches, 35 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.8s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9948965484363079 AbsIntWeakeningRatio, 0.11842105263157894 AbsIntAvgWeakeningVarsNumRemoved, 241.31315789473683 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1065 NumberOfCodeBlocks, 1065 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1059 ConstructedInterpolants, 0 QuantifiedInterpolants, 1901749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 490/763 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label11_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-38-09-392.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label11_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-38-09-392.csv Completed graceful shutdown