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/Problem16_label18_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:49:51,727 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:49:51,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:49:51,744 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:49:51,745 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:49:51,746 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:49:51,747 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:49:51,749 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:49:51,750 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:49:51,751 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:49:51,752 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:49:51,752 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:49:51,753 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:49:51,754 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:49:51,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:49:51,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:49:51,766 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:49:51,768 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:49:51,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:49:51,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:49:51,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:49:51,776 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:49:51,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:49:51,781 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:49:51,781 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:49:51,782 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:49:51,784 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:49:51,784 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:49:51,785 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:49:51,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:49:51,786 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:49:51,789 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:49:51,789 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:49:51,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:49:51,790 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:49:51,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:49:51,793 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 19:49:51,821 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:49:51,821 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:49:51,822 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:49:51,822 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:49:51,823 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:49:51,823 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:49:51,823 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:49:51,823 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:49:51,823 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:49:51,824 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:49:51,824 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:49:51,825 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:49:51,825 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:49:51,825 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:49:51,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:49:51,826 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:49:51,826 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:49:51,826 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:49:51,826 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:49:51,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:49:51,828 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:49:51,828 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:49:51,829 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:49:51,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:49:51,829 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:49:51,829 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:49:51,829 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:49:51,830 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:49:51,830 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:49:51,830 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:49:51,830 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:49:51,830 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:49:51,831 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:49:51,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:49:51,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:49:51,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:49:51,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:49:51,934 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:49:51,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label18_false-unreach-call.c [2018-07-23 19:49:52,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9ba84f3a/fb97ea8d7ad744beb1bb96fb93432b19/FLAG15449e3c3 [2018-07-23 19:49:52,620 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:49:52,621 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label18_false-unreach-call.c [2018-07-23 19:49:52,644 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9ba84f3a/fb97ea8d7ad744beb1bb96fb93432b19/FLAG15449e3c3 [2018-07-23 19:49:52,666 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9ba84f3a/fb97ea8d7ad744beb1bb96fb93432b19 [2018-07-23 19:49:52,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:49:52,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:49:52,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:49:52,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:49:52,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:49:52,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:49:52" (1/1) ... [2018-07-23 19:49:52,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a77100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:52, skipping insertion in model container [2018-07-23 19:49:52,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:49:52" (1/1) ... [2018-07-23 19:49:52,929 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:49:53,438 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:49:53,458 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:49:54,002 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:49:54,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54 WrapperNode [2018-07-23 19:49:54,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:49:54,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:49:54,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:49:54,096 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:49:54,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:49:54,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:49:54,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:49:54,331 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:49:54,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (1/1) ... [2018-07-23 19:49:54,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:49:54,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:49:54,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:49:54,777 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:49:54,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (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 19:49:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:49:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:49:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:49:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:49:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:49:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:49:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:49:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:49:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:49:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:50:00,408 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:50:00,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:50:00 BoogieIcfgContainer [2018-07-23 19:50:00,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:50:00,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:50:00,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:50:00,414 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:50:00,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:49:52" (1/3) ... [2018-07-23 19:50:00,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5376d3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:50:00, skipping insertion in model container [2018-07-23 19:50:00,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:49:54" (2/3) ... [2018-07-23 19:50:00,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5376d3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:50:00, skipping insertion in model container [2018-07-23 19:50:00,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:50:00" (3/3) ... [2018-07-23 19:50:00,418 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label18_false-unreach-call.c [2018-07-23 19:50:00,427 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:50:00,436 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:50:00,491 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:50:00,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:50:00,492 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:50:00,492 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:50:00,492 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:50:00,492 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:50:00,492 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:50:00,492 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:50:00,492 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:50:00,526 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-23 19:50:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 19:50:00,532 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:50:00,533 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:50:00,534 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:50:00,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1762658756, now seen corresponding path program 1 times [2018-07-23 19:50:00,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:50:00,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:50:00,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:50:00,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:50:00,589 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:50:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:50:00,905 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:50:00,922 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 19:50:00,924 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:50:00,925 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:50:00,925 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:50:00,931 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:50:00,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:50:00,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:50:00,950 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-23 19:50:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:50:07,254 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-23 19:50:07,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:50:07,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-07-23 19:50:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:50:07,280 INFO L225 Difference]: With dead ends: 1156 [2018-07-23 19:50:07,280 INFO L226 Difference]: Without dead ends: 744 [2018-07-23 19:50:07,291 INFO L573 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 [2018-07-23 19:50:07,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-23 19:50:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-23 19:50:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-23 19:50:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-07-23 19:50:07,413 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 14 [2018-07-23 19:50:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:50:07,413 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-07-23 19:50:07,413 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:50:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-07-23 19:50:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 19:50:07,419 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:50:07,420 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:50:07,420 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:50:07,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1671463942, now seen corresponding path program 1 times [2018-07-23 19:50:07,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:50:07,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:50:07,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:50:07,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:50:07,422 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:50:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:50:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:50:07,729 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:50:07,729 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:50:07,729 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:50:07,731 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:50:07,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:50:07,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:50:07,732 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-07-23 19:50:22,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:50:22,225 INFO L93 Difference]: Finished difference Result 2959 states and 5493 transitions. [2018-07-23 19:50:22,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 19:50:22,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-07-23 19:50:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:50:22,254 INFO L225 Difference]: With dead ends: 2959 [2018-07-23 19:50:22,254 INFO L226 Difference]: Without dead ends: 2221 [2018-07-23 19:50:22,269 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 19:50:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-07-23 19:50:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2170. [2018-07-23 19:50:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2018-07-23 19:50:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3672 transitions. [2018-07-23 19:50:22,379 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3672 transitions. Word has length 90 [2018-07-23 19:50:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:50:22,381 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3672 transitions. [2018-07-23 19:50:22,381 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:50:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3672 transitions. [2018-07-23 19:50:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-23 19:50:22,402 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:50:22,403 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:50:22,403 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:50:22,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1713466640, now seen corresponding path program 1 times [2018-07-23 19:50:22,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:50:22,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:50:22,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:50:22,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:50:22,408 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:50:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:50:22,820 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:50:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 19:50:23,039 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:50:23,039 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:50:23,040 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-07-23 19:50:23,042 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [736], [737], [741], [745], [749], [752], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-23 19:50:23,102 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:50:23,102 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:50:26,027 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:50:26,029 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 19:50:26,073 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:50:28,331 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 77.28% of their original sizes. [2018-07-23 19:50:28,331 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:50:28,610 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:50:28,611 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:50:28,611 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 19:50:28,611 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:50:28,612 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:50:28,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:50:28,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:50:28,613 INFO L87 Difference]: Start difference. First operand 2170 states and 3672 transitions. Second operand 7 states. [2018-07-23 19:50:31,539 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:51:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:51:30,742 INFO L93 Difference]: Finished difference Result 4674 states and 7868 transitions. [2018-07-23 19:51:30,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:51:30,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2018-07-23 19:51:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:51:30,758 INFO L225 Difference]: With dead ends: 4674 [2018-07-23 19:51:30,758 INFO L226 Difference]: Without dead ends: 2510 [2018-07-23 19:51:30,770 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:51:30,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2018-07-23 19:51:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2508. [2018-07-23 19:51:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2018-07-23 19:51:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 4019 transitions. [2018-07-23 19:51:30,854 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 4019 transitions. Word has length 178 [2018-07-23 19:51:30,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:51:30,855 INFO L471 AbstractCegarLoop]: Abstraction has 2508 states and 4019 transitions. [2018-07-23 19:51:30,855 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:51:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 4019 transitions. [2018-07-23 19:51:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-07-23 19:51:30,860 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:51:30,861 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:51:30,861 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:51:30,861 INFO L82 PathProgramCache]: Analyzing trace with hash 137622680, now seen corresponding path program 1 times [2018-07-23 19:51:30,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:51:30,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:30,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:51:30,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:51:30,865 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:51:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:51:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-23 19:51:31,155 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:51:31,155 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:51:31,155 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-07-23 19:51:31,156 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [752], [753], [757], [761], [765], [769], [773], [777], [781], [784], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-23 19:51:31,162 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:51:31,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:51:33,313 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:51:38,820 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:51:38,821 INFO L272 AbstractInterpreter]: Visited 100 different actions 193 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 19:51:38,830 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:51:42,381 INFO L232 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 77.34% of their original sizes. [2018-07-23 19:51:42,382 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:51:43,335 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:51:43,336 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:51:43,336 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-07-23 19:51:43,337 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:51:43,337 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:51:43,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:51:43,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:51:43,339 INFO L87 Difference]: Start difference. First operand 2508 states and 4019 transitions. Second operand 11 states. [2018-07-23 19:52:55,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:52:55,044 INFO L93 Difference]: Finished difference Result 5354 states and 8856 transitions. [2018-07-23 19:52:55,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 19:52:55,045 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 190 [2018-07-23 19:52:55,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:52:55,060 INFO L225 Difference]: With dead ends: 5354 [2018-07-23 19:52:55,061 INFO L226 Difference]: Without dead ends: 3190 [2018-07-23 19:52:55,073 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 19:52:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2018-07-23 19:52:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 3187. [2018-07-23 19:52:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3187 states. [2018-07-23 19:52:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 4720 transitions. [2018-07-23 19:52:55,166 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 4720 transitions. Word has length 190 [2018-07-23 19:52:55,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:52:55,167 INFO L471 AbstractCegarLoop]: Abstraction has 3187 states and 4720 transitions. [2018-07-23 19:52:55,167 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:52:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 4720 transitions. [2018-07-23 19:52:55,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-07-23 19:52:55,171 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:52:55,172 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:55,172 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:52:55,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1103092112, now seen corresponding path program 1 times [2018-07-23 19:52:55,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:52:55,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:52:55,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:52:55,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:52:55,174 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:52:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:52:55,440 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:52:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-23 19:52:55,896 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:52:55,896 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:52:55,897 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-07-23 19:52:55,897 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [215], [217], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [752], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [928], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-23 19:52:55,902 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:52:55,902 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:52:59,798 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:53:08,825 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:53:08,825 INFO L272 AbstractInterpreter]: Visited 136 different actions 265 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 19:53:08,835 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:53:13,977 INFO L232 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 77.33% of their original sizes. [2018-07-23 19:53:13,978 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:53:14,524 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:53:14,525 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:53:14,525 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-07-23 19:53:14,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:53:14,526 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:53:14,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:53:14,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:53:14,526 INFO L87 Difference]: Start difference. First operand 3187 states and 4720 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 19:53:51,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:53:51,970 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:53:51,975 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:53:51,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:53:51 BoogieIcfgContainer [2018-07-23 19:53:51,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:53:51,976 INFO L168 Benchmark]: Toolchain (without parser) took 239299.72 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 785.0 MB. Max. memory is 7.1 GB. [2018-07-23 19:53:51,977 INFO L168 Benchmark]: CDTParser took 0.25 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 19:53:51,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1417.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:53:51,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 233.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:53:51,979 INFO L168 Benchmark]: Boogie Preprocessor took 446.06 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 835.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -971.0 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:53:51,980 INFO L168 Benchmark]: RCFGBuilder took 5632.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 271.0 MB). Peak memory consumption was 271.0 MB. Max. memory is 7.1 GB. [2018-07-23 19:53:51,981 INFO L168 Benchmark]: TraceAbstraction took 231564.85 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 522.5 MB. Max. memory is 7.1 GB. [2018-07-23 19:53:51,987 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 1417.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 233.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 446.06 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 835.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -971.0 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5632.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 271.0 MB). Peak memory consumption was 271.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231564.85 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 522.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 28). Cancelled while BasicCegarLoop was constructing difference of abstraction (3187states) and interpolant automaton (currently 13 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (1152 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 231.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 192.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1176 SDtfs, 5456 SDslu, 781 SDs, 0 SdLazy, 7894 SolverSat, 2070 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 130.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 622 GetRequests, 569 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3187occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 23.6s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9943016013144019 AbsIntWeakeningRatio, 0.1319796954314721 AbsIntAvgWeakeningVarsNumRemoved, 287.53130287648054 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 56 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 698 NumberOfCodeBlocks, 698 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 693 ConstructedInterpolants, 0 QuantifiedInterpolants, 454897 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 194/297 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/Problem16_label18_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-53-52-001.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label18_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-53-52-001.csv Completed graceful shutdown