java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 18:49:00,705 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 18:49:00,707 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 18:49:00,719 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 18:49:00,719 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 18:49:00,720 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 18:49:00,721 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 18:49:00,723 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 18:49:00,725 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 18:49:00,726 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 18:49:00,726 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 18:49:00,727 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 18:49:00,728 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 18:49:00,728 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 18:49:00,730 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 18:49:00,730 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 18:49:00,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 18:49:00,733 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 18:49:00,735 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 18:49:00,737 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 18:49:00,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 18:49:00,739 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 18:49:00,742 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 18:49:00,742 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 18:49:00,742 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 18:49:00,743 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 18:49:00,744 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 18:49:00,745 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 18:49:00,746 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 18:49:00,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 18:49:00,747 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 18:49:00,748 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 18:49:00,748 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 18:49:00,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 18:49:00,749 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 18:49:00,750 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 18:49:00,750 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 18:49:00,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 18:49:00,776 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 18:49:00,776 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 18:49:00,777 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 18:49:00,777 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 18:49:00,777 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 18:49:00,777 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 18:49:00,777 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 18:49:00,778 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 18:49:00,778 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 18:49:00,778 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 18:49:00,778 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 18:49:00,779 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 18:49:00,779 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 18:49:00,779 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 18:49:00,779 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 18:49:00,780 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 18:49:00,780 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 18:49:00,780 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 18:49:00,780 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 18:49:00,780 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 18:49:00,781 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 18:49:00,782 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 18:49:00,782 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 18:49:00,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 18:49:00,782 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 18:49:00,782 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 18:49:00,783 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 18:49:00,783 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 18:49:00,783 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 18:49:00,783 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 18:49:00,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 18:49:00,783 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 18:49:00,784 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 18:49:00,784 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 18:49:00,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 18:49:00,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 18:49:00,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 18:49:00,868 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 18:49:00,868 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 18:49:00,869 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-07-21 18:49:01,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/1eedb9b74/072cc51e29374414a424c749dd658687/FLAG6e0017b36 [2018-07-21 18:49:01,654 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 18:49:01,659 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-07-21 18:49:01,707 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/1eedb9b74/072cc51e29374414a424c749dd658687/FLAG6e0017b36 [2018-07-21 18:49:01,720 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/1eedb9b74/072cc51e29374414a424c749dd658687 [2018-07-21 18:49:01,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 18:49:01,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 18:49:01,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 18:49:01,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 18:49:01,749 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 18:49:01,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:49:01" (1/1) ... [2018-07-21 18:49:01,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116ef42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:01, skipping insertion in model container [2018-07-21 18:49:01,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:49:01" (1/1) ... [2018-07-21 18:49:02,036 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 18:49:02,712 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 18:49:02,731 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 18:49:03,049 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 18:49:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03 WrapperNode [2018-07-21 18:49:03,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 18:49:03,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 18:49:03,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 18:49:03,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 18:49:03,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 18:49:03,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 18:49:03,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 18:49:03,335 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 18:49:03,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... [2018-07-21 18:49:03,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 18:49:03,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 18:49:03,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 18:49:03,904 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 18:49:03,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 18:49:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 18:49:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 18:49:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 18:49:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 18:49:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 18:49:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 18:49:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 18:49:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 18:49:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 18:49:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 18:49:10,663 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 18:49:10,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:49:10 BoogieIcfgContainer [2018-07-21 18:49:10,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 18:49:10,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 18:49:10,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 18:49:10,669 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 18:49:10,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:49:01" (1/3) ... [2018-07-21 18:49:10,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c1537f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:49:10, skipping insertion in model container [2018-07-21 18:49:10,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:49:03" (2/3) ... [2018-07-21 18:49:10,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c1537f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:49:10, skipping insertion in model container [2018-07-21 18:49:10,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:49:10" (3/3) ... [2018-07-21 18:49:10,673 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label09_true-unreach-call.c [2018-07-21 18:49:10,683 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 18:49:10,695 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 18:49:10,756 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 18:49:10,757 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 18:49:10,757 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 18:49:10,757 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 18:49:10,757 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 18:49:10,757 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 18:49:10,758 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 18:49:10,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 18:49:10,758 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 18:49:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-21 18:49:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-21 18:49:10,800 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 18:49:10,801 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 18:49:10,802 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 18:49:10,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1447152668, now seen corresponding path program 1 times [2018-07-21 18:49:10,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 18:49:10,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:10,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 18:49:10,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:10,864 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 18:49:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 18:49:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 18:49:11,215 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 18:49:11,215 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 18:49:11,215 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 18:49:11,222 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 18:49:11,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 18:49:11,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 18:49:11,245 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-07-21 18:49:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 18:49:18,284 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-07-21 18:49:18,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 18:49:18,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-07-21 18:49:18,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 18:49:18,319 INFO L225 Difference]: With dead ends: 1513 [2018-07-21 18:49:18,319 INFO L226 Difference]: Without dead ends: 1097 [2018-07-21 18:49:18,331 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 18:49:18,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-07-21 18:49:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-07-21 18:49:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-21 18:49:18,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1301 transitions. [2018-07-21 18:49:18,443 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1301 transitions. Word has length 54 [2018-07-21 18:49:18,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 18:49:18,444 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1301 transitions. [2018-07-21 18:49:18,444 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 18:49:18,444 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1301 transitions. [2018-07-21 18:49:18,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-21 18:49:18,452 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 18:49:18,452 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 18:49:18,453 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 18:49:18,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1641866531, now seen corresponding path program 1 times [2018-07-21 18:49:18,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 18:49:18,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:18,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 18:49:18,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:18,455 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 18:49:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 18:49:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 18:49:18,685 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 18:49:18,685 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 18:49:18,685 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 18:49:18,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 18:49:18,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 18:49:18,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 18:49:18,690 INFO L87 Difference]: Start difference. First operand 744 states and 1301 transitions. Second operand 6 states. [2018-07-21 18:49:25,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 18:49:25,712 INFO L93 Difference]: Finished difference Result 2842 states and 5118 transitions. [2018-07-21 18:49:25,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 18:49:25,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-07-21 18:49:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 18:49:25,732 INFO L225 Difference]: With dead ends: 2842 [2018-07-21 18:49:25,732 INFO L226 Difference]: Without dead ends: 2104 [2018-07-21 18:49:25,739 INFO L578 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 [2018-07-21 18:49:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2018-07-21 18:49:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2086. [2018-07-21 18:49:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2086 states. [2018-07-21 18:49:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 3293 transitions. [2018-07-21 18:49:25,867 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 3293 transitions. Word has length 125 [2018-07-21 18:49:25,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 18:49:25,869 INFO L471 AbstractCegarLoop]: Abstraction has 2086 states and 3293 transitions. [2018-07-21 18:49:25,869 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 18:49:25,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 3293 transitions. [2018-07-21 18:49:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-21 18:49:25,881 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 18:49:25,882 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 18:49:25,882 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 18:49:25,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1337258606, now seen corresponding path program 1 times [2018-07-21 18:49:25,883 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 18:49:25,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:25,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 18:49:25,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:25,884 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 18:49:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 18:49:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 18:49:26,118 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 18:49:26,119 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 18:49:26,119 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 18:49:26,119 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 18:49:26,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 18:49:26,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 18:49:26,120 INFO L87 Difference]: Start difference. First operand 2086 states and 3293 transitions. Second operand 5 states. [2018-07-21 18:49:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 18:49:29,073 INFO L93 Difference]: Finished difference Result 5588 states and 9265 transitions. [2018-07-21 18:49:29,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 18:49:29,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-07-21 18:49:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 18:49:29,103 INFO L225 Difference]: With dead ends: 5588 [2018-07-21 18:49:29,103 INFO L226 Difference]: Without dead ends: 3508 [2018-07-21 18:49:29,112 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 18:49:29,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2018-07-21 18:49:29,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3488. [2018-07-21 18:49:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3488 states. [2018-07-21 18:49:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 5282 transitions. [2018-07-21 18:49:29,272 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 5282 transitions. Word has length 126 [2018-07-21 18:49:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 18:49:29,273 INFO L471 AbstractCegarLoop]: Abstraction has 3488 states and 5282 transitions. [2018-07-21 18:49:29,273 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 18:49:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 5282 transitions. [2018-07-21 18:49:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-07-21 18:49:29,283 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 18:49:29,285 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 18:49:29,285 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 18:49:29,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1133758048, now seen corresponding path program 1 times [2018-07-21 18:49:29,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 18:49:29,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:29,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 18:49:29,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:49:29,287 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 18:49:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 18:49:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 94 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 18:49:29,611 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 18:49:29,611 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 18:49:29,612 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-07-21 18:49:29,614 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [704], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [880], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 18:49:29,710 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 18:49:29,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 18:49:35,044 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 18:49:42,864 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 18:49:42,866 INFO L272 AbstractInterpreter]: Visited 121 different actions 121 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 18:49:42,877 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 18:49:52,659 INFO L232 lantSequenceWeakener]: Weakened 234 states. On average, predicates are now at 78.06% of their original sizes. [2018-07-21 18:49:52,660 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 18:49:53,665 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 18:49:53,666 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 18:49:53,666 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 18:49:53,667 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 18:49:53,667 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 18:49:53,668 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 18:49:53,668 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 18:49:53,668 INFO L87 Difference]: Start difference. First operand 3488 states and 5282 transitions. Second operand 8 states. [2018-07-21 18:51:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 18:51:44,445 INFO L93 Difference]: Finished difference Result 7310 states and 11011 transitions. [2018-07-21 18:51:44,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 18:51:44,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 242 [2018-07-21 18:51:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 18:51:44,464 INFO L225 Difference]: With dead ends: 7310 [2018-07-21 18:51:44,464 INFO L226 Difference]: Without dead ends: 3828 [2018-07-21 18:51:44,477 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 18:51:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2018-07-21 18:51:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3826. [2018-07-21 18:51:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2018-07-21 18:51:44,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5628 transitions. [2018-07-21 18:51:44,614 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5628 transitions. Word has length 242 [2018-07-21 18:51:44,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 18:51:44,615 INFO L471 AbstractCegarLoop]: Abstraction has 3826 states and 5628 transitions. [2018-07-21 18:51:44,615 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-21 18:51:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5628 transitions. [2018-07-21 18:51:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-07-21 18:51:44,625 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 18:51:44,626 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-21 18:51:44,626 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 18:51:44,626 INFO L82 PathProgramCache]: Analyzing trace with hash 946852354, now seen corresponding path program 1 times [2018-07-21 18:51:44,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 18:51:44,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:51:44,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 18:51:44,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 18:51:44,629 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 18:51:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 18:51:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 147 proven. 218 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-21 18:51:45,026 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 18:51:45,057 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 18:51:45,058 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 335 with the following transitions: [2018-07-21 18:51:45,058 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [704], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [784], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [880], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 18:51:45,065 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 18:51:45,065 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 18:51:48,539 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 18:52:04,149 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 18:52:04,149 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 18:52:04,157 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 18:52:09,046 INFO L232 lantSequenceWeakener]: Weakened 332 states. On average, predicates are now at 77.89% of their original sizes. [2018-07-21 18:52:09,047 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 18:52:12,309 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 18:52:12,309 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 18:52:12,309 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-07-21 18:52:12,309 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 18:52:12,310 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-21 18:52:12,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-21 18:52:12,310 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-07-21 18:52:12,310 INFO L87 Difference]: Start difference. First operand 3826 states and 5628 transitions. Second operand 20 states. Received shutdown request... [2018-07-21 18:52:29,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-21 18:52:29,308 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 18:52:29,313 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 18:52:29,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 06:52:29 BoogieIcfgContainer [2018-07-21 18:52:29,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 18:52:29,314 INFO L168 Benchmark]: Toolchain (without parser) took 207584.75 ms. Allocated memory was 303.0 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 242.0 MB in the beginning and 1.1 GB in the end (delta: -881.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-21 18:52:29,315 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 303.0 MB. Free memory is still 265.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 18:52:29,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1423.52 ms. Allocated memory was 303.0 MB in the beginning and 330.8 MB in the end (delta: 27.8 MB). Free memory was 242.0 MB in the beginning and 264.1 MB in the end (delta: -22.2 MB). Peak memory consumption was 72.3 MB. Max. memory is 5.3 GB. [2018-07-21 18:52:29,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.33 ms. Allocated memory is still 330.8 MB. Free memory was 264.1 MB in the beginning and 242.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 5.3 GB. [2018-07-21 18:52:29,317 INFO L168 Benchmark]: Boogie Preprocessor took 568.73 ms. Allocated memory was 330.8 MB in the beginning and 534.8 MB in the end (delta: 203.9 MB). Free memory was 242.6 MB in the beginning and 482.6 MB in the end (delta: -240.0 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. [2018-07-21 18:52:29,318 INFO L168 Benchmark]: RCFGBuilder took 6760.38 ms. Allocated memory was 534.8 MB in the beginning and 539.0 MB in the end (delta: 4.2 MB). Free memory was 482.6 MB in the beginning and 401.8 MB in the end (delta: 80.8 MB). Peak memory consumption was 200.5 MB. Max. memory is 5.3 GB. [2018-07-21 18:52:29,319 INFO L168 Benchmark]: TraceAbstraction took 198647.78 ms. Allocated memory was 539.0 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 401.8 MB in the beginning and 1.1 GB in the end (delta: -721.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-21 18:52:29,324 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 303.0 MB. Free memory is still 265.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1423.52 ms. Allocated memory was 303.0 MB in the beginning and 330.8 MB in the end (delta: 27.8 MB). Free memory was 242.0 MB in the beginning and 264.1 MB in the end (delta: -22.2 MB). Peak memory consumption was 72.3 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 172.33 ms. Allocated memory is still 330.8 MB. Free memory was 264.1 MB in the beginning and 242.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 568.73 ms. Allocated memory was 330.8 MB in the beginning and 534.8 MB in the end (delta: 203.9 MB). Free memory was 242.6 MB in the beginning and 482.6 MB in the end (delta: -240.0 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 6760.38 ms. Allocated memory was 534.8 MB in the beginning and 539.0 MB in the end (delta: 4.2 MB). Free memory was 482.6 MB in the beginning and 401.8 MB in the end (delta: 80.8 MB). Peak memory consumption was 200.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 198647.78 ms. Allocated memory was 539.0 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 401.8 MB in the beginning and 1.1 GB in the end (delta: -721.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (3826states) and interpolant automaton (currently 15 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (718 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 198.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 144.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 832 SDtfs, 6863 SDslu, 833 SDs, 0 SdLazy, 8466 SolverSat, 2545 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 611 GetRequests, 543 SyntacticMatches, 17 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3826occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 32.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9957424380144421 AbsIntWeakeningRatio, 0.10104529616724739 AbsIntAvgWeakeningVarsNumRemoved, 32.08188153310105 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 393 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 881 NumberOfCodeBlocks, 881 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 876 ConstructedInterpolants, 0 QuantifiedInterpolants, 795767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 352/637 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label09_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_18-52-29-340.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label09_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_18-52-29-340.csv Completed graceful shutdown