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/Problem19_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 21:05:51,656 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 21:05:51,658 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 21:05:51,670 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 21:05:51,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 21:05:51,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 21:05:51,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 21:05:51,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 21:05:51,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 21:05:51,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 21:05:51,679 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 21:05:51,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 21:05:51,681 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 21:05:51,681 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 21:05:51,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 21:05:51,683 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 21:05:51,684 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 21:05:51,689 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 21:05:51,691 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 21:05:51,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 21:05:51,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 21:05:51,706 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 21:05:51,708 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 21:05:51,708 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 21:05:51,709 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 21:05:51,709 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 21:05:51,710 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 21:05:51,711 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 21:05:51,712 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 21:05:51,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 21:05:51,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 21:05:51,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 21:05:51,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 21:05:51,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 21:05:51,722 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 21:05:51,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 21:05:51,723 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 21:05:51,748 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 21:05:51,748 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 21:05:51,749 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 21:05:51,749 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 21:05:51,749 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 21:05:51,749 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 21:05:51,750 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 21:05:51,750 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 21:05:51,750 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 21:05:51,750 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 21:05:51,750 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 21:05:51,751 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 21:05:51,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 21:05:51,752 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 21:05:51,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 21:05:51,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 21:05:51,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 21:05:51,752 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 21:05:51,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 21:05:51,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 21:05:51,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 21:05:51,753 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 21:05:51,753 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 21:05:51,754 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 21:05:51,754 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:05:51,754 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 21:05:51,754 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 21:05:51,754 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 21:05:51,755 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 21:05:51,755 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 21:05:51,755 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 21:05:51,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 21:05:51,755 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 21:05:51,755 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 21:05:51,756 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 21:05:51,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 21:05:51,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 21:05:51,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 21:05:51,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 21:05:51,834 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 21:05:51,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label16_true-unreach-call.c [2018-07-21 21:05:52,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f802e28a7/e665b6869736422f84dbef86ef87abeb/FLAGbdf815f84 [2018-07-21 21:05:52,930 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 21:05:52,931 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label16_true-unreach-call.c [2018-07-21 21:05:52,990 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f802e28a7/e665b6869736422f84dbef86ef87abeb/FLAGbdf815f84 [2018-07-21 21:05:53,012 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/f802e28a7/e665b6869736422f84dbef86ef87abeb [2018-07-21 21:05:53,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 21:05:53,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 21:05:53,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 21:05:53,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 21:05:53,042 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 21:05:53,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:05:53" (1/1) ... [2018-07-21 21:05:53,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb7daf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:53, skipping insertion in model container [2018-07-21 21:05:53,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:05:53" (1/1) ... [2018-07-21 21:05:53,574 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 21:05:55,646 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:05:55,663 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 21:05:56,890 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:05:57,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57 WrapperNode [2018-07-21 21:05:57,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 21:05:57,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 21:05:57,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 21:05:57,508 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 21:05:57,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:57,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:57,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 21:05:57,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 21:05:57,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 21:05:57,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 21:05:57,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:57,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:59,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:59,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:59,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:59,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:59,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (1/1) ... [2018-07-21 21:05:59,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 21:05:59,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 21:05:59,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 21:05:59,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 21:05:59,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (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 21:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-21 21:05:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-21 21:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 21:05:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 21:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 21:05:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 21:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 21:05:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 21:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 21:05:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 21:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 21:05:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 21:05:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 21:05:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 21:05:59,761 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 21:05:59,761 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 21:05:59,761 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 21:05:59,761 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 21:06:18,596 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 21:06:18,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:06:18 BoogieIcfgContainer [2018-07-21 21:06:18,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 21:06:18,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 21:06:18,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 21:06:18,601 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 21:06:18,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:05:53" (1/3) ... [2018-07-21 21:06:18,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b263a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:06:18, skipping insertion in model container [2018-07-21 21:06:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:05:57" (2/3) ... [2018-07-21 21:06:18,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b263a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:06:18, skipping insertion in model container [2018-07-21 21:06:18,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:06:18" (3/3) ... [2018-07-21 21:06:18,608 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label16_true-unreach-call.c [2018-07-21 21:06:18,619 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 21:06:18,628 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 21:06:18,710 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 21:06:18,711 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 21:06:18,711 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 21:06:18,711 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 21:06:18,711 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 21:06:18,711 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 21:06:18,712 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 21:06:18,712 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 21:06:18,712 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 21:06:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-21 21:06:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-21 21:06:18,770 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:06:18,771 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, 1, 1, 1, 1, 1, 1] [2018-07-21 21:06:18,772 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 21:06:18,776 INFO L82 PathProgramCache]: Analyzing trace with hash 638045500, now seen corresponding path program 1 times [2018-07-21 21:06:18,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:06:18,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:06:18,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:06:18,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:06:18,830 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:06:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:06:19,309 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:06:19,431 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 21:06:19,433 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:06:19,434 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:06:19,434 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:06:19,438 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:06:19,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:06:19,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:06:19,457 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-21 21:06:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:06:34,480 INFO L93 Difference]: Finished difference Result 5042 states and 9509 transitions. [2018-07-21 21:06:34,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:06:34,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-07-21 21:06:34,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:06:34,554 INFO L225 Difference]: With dead ends: 5042 [2018-07-21 21:06:34,554 INFO L226 Difference]: Without dead ends: 3262 [2018-07-21 21:06:34,568 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:06:34,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2018-07-21 21:06:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3214. [2018-07-21 21:06:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3214 states. [2018-07-21 21:06:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5986 transitions. [2018-07-21 21:06:34,825 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5986 transitions. Word has length 60 [2018-07-21 21:06:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:06:34,826 INFO L471 AbstractCegarLoop]: Abstraction has 3214 states and 5986 transitions. [2018-07-21 21:06:34,826 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:06:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5986 transitions. [2018-07-21 21:06:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-07-21 21:06:34,842 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:06:34,843 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, 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] [2018-07-21 21:06:34,843 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 21:06:34,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1828857213, now seen corresponding path program 1 times [2018-07-21 21:06:34,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:06:34,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:06:34,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:06:34,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:06:34,849 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:06:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:06:35,297 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:06:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:06:35,699 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:06:35,700 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:06:35,700 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:06:35,702 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:06:35,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:06:35,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:06:35,702 INFO L87 Difference]: Start difference. First operand 3214 states and 5986 transitions. Second operand 6 states. [2018-07-21 21:06:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:06:59,726 INFO L93 Difference]: Finished difference Result 12121 states and 23105 transitions. [2018-07-21 21:06:59,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:06:59,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2018-07-21 21:06:59,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:06:59,793 INFO L225 Difference]: With dead ends: 12121 [2018-07-21 21:06:59,793 INFO L226 Difference]: Without dead ends: 8913 [2018-07-21 21:06:59,808 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:06:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8913 states. [2018-07-21 21:07:00,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8913 to 8850. [2018-07-21 21:07:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8850 states. [2018-07-21 21:07:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 14379 transitions. [2018-07-21 21:07:00,149 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 14379 transitions. Word has length 160 [2018-07-21 21:07:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:07:00,150 INFO L471 AbstractCegarLoop]: Abstraction has 8850 states and 14379 transitions. [2018-07-21 21:07:00,151 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:07:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 14379 transitions. [2018-07-21 21:07:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-21 21:07:00,164 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:07:00,164 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, 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] [2018-07-21 21:07:00,164 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 21:07:00,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1601686713, now seen corresponding path program 1 times [2018-07-21 21:07:00,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:07:00,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:07:00,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:07:00,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:07:00,170 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:07:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:07:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:07:00,523 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:07:00,523 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 21:07:00,524 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:07:00,524 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 21:07:00,524 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 21:07:00,525 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 21:07:00,525 INFO L87 Difference]: Start difference. First operand 8850 states and 14379 transitions. Second operand 5 states. [2018-07-21 21:07:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:07:21,650 INFO L93 Difference]: Finished difference Result 26945 states and 44563 transitions. [2018-07-21 21:07:21,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:07:21,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2018-07-21 21:07:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:07:21,754 INFO L225 Difference]: With dead ends: 26945 [2018-07-21 21:07:21,754 INFO L226 Difference]: Without dead ends: 18101 [2018-07-21 21:07:21,782 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 21:07:21,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18101 states. [2018-07-21 21:07:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18101 to 17800. [2018-07-21 21:07:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17800 states. [2018-07-21 21:07:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17800 states to 17800 states and 25713 transitions. [2018-07-21 21:07:22,283 INFO L78 Accepts]: Start accepts. Automaton has 17800 states and 25713 transitions. Word has length 162 [2018-07-21 21:07:22,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:07:22,284 INFO L471 AbstractCegarLoop]: Abstraction has 17800 states and 25713 transitions. [2018-07-21 21:07:22,285 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 21:07:22,285 INFO L276 IsEmpty]: Start isEmpty. Operand 17800 states and 25713 transitions. [2018-07-21 21:07:22,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-21 21:07:22,291 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:07:22,291 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:07:22,292 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 21:07:22,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1016392105, now seen corresponding path program 1 times [2018-07-21 21:07:22,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:07:22,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:07:22,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:07:22,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:07:22,293 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:07:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:07:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:07:22,692 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:07:22,692 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 21:07:22,692 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:07:22,693 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 21:07:22,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 21:07:22,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 21:07:22,694 INFO L87 Difference]: Start difference. First operand 17800 states and 25713 transitions. Second operand 5 states. [2018-07-21 21:07:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:07:40,175 INFO L93 Difference]: Finished difference Result 53913 states and 79757 transitions. [2018-07-21 21:07:40,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:07:40,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2018-07-21 21:07:40,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:07:40,320 INFO L225 Difference]: With dead ends: 53913 [2018-07-21 21:07:40,320 INFO L226 Difference]: Without dead ends: 36119 [2018-07-21 21:07:40,379 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 21:07:40,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36119 states. [2018-07-21 21:07:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36119 to 35483. [2018-07-21 21:07:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35483 states. [2018-07-21 21:07:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35483 states to 35483 states and 49683 transitions. [2018-07-21 21:07:41,598 INFO L78 Accepts]: Start accepts. Automaton has 35483 states and 49683 transitions. Word has length 170 [2018-07-21 21:07:41,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:07:41,600 INFO L471 AbstractCegarLoop]: Abstraction has 35483 states and 49683 transitions. [2018-07-21 21:07:41,600 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 21:07:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 35483 states and 49683 transitions. [2018-07-21 21:07:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-07-21 21:07:41,605 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:07:41,606 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:07:41,606 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 21:07:41,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1803684770, now seen corresponding path program 1 times [2018-07-21 21:07:41,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:07:41,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:07:41,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:07:41,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:07:41,608 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:07:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:07:41,984 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:07:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:07:42,425 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:07:42,428 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:07:42,428 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:07:42,428 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:07:42,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:07:42,429 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:07:42,429 INFO L87 Difference]: Start difference. First operand 35483 states and 49683 transitions. Second operand 6 states. [2018-07-21 21:08:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:08:04,571 INFO L93 Difference]: Finished difference Result 96040 states and 137925 transitions. [2018-07-21 21:08:04,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:08:04,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-07-21 21:08:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:08:04,792 INFO L225 Difference]: With dead ends: 96040 [2018-07-21 21:08:04,793 INFO L226 Difference]: Without dead ends: 60563 [2018-07-21 21:08:04,860 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:08:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60563 states. [2018-07-21 21:08:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60563 to 59948. [2018-07-21 21:08:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59948 states. [2018-07-21 21:08:06,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59948 states to 59948 states and 82434 transitions. [2018-07-21 21:08:06,218 INFO L78 Accepts]: Start accepts. Automaton has 59948 states and 82434 transitions. Word has length 225 [2018-07-21 21:08:06,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:08:06,219 INFO L471 AbstractCegarLoop]: Abstraction has 59948 states and 82434 transitions. [2018-07-21 21:08:06,220 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:08:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 59948 states and 82434 transitions. [2018-07-21 21:08:06,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-07-21 21:08:06,226 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:08:06,226 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, 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, 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 21:08:06,227 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:08:06,227 INFO L82 PathProgramCache]: Analyzing trace with hash 293060878, now seen corresponding path program 1 times [2018-07-21 21:08:06,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:08:06,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:08:06,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:08:06,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:08:06,228 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:08:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:08:06,520 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:08:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 106 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 21:08:06,569 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:08:06,569 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 21:08:06,570 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-07-21 21:08:06,571 INFO L201 CegarAbsIntRunner]: [2006], [2007], [4199], [4203], [4209], [4213], [4215], [5251], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5630], [5632], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5723], [5731], [5739], [5751], [5755], [5766], [5770], [5774], [5778], [5782], [5786], [5790], [5794], [5798], [5802], [5806], [5810], [5821], [5832], [5843], [5847], [5851], [5862], [5865], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5913], [6826], [6833], [6834], [6835], [6837], [6838] [2018-07-21 21:08:06,640 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 21:08:06,640 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 21:08:21,205 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 21:08:21,206 INFO L272 AbstractInterpreter]: Visited 107 different actions 107 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 21:08:21,221 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 21:08:32,739 INFO L232 lantSequenceWeakener]: Weakened 244 states. On average, predicates are now at 75.75% of their original sizes. [2018-07-21 21:08:32,740 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 21:08:33,486 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 21:08:33,487 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 21:08:33,487 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 21:08:33,487 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:08:33,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 21:08:33,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 21:08:33,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 21:08:33,489 INFO L87 Difference]: Start difference. First operand 59948 states and 82434 transitions. Second operand 7 states. [2018-07-21 21:09:13,677 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 21:09:21,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:09:21,698 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 21:09:21,705 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 21:09:21,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:09:21 BoogieIcfgContainer [2018-07-21 21:09:21,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 21:09:21,711 INFO L168 Benchmark]: Toolchain (without parser) took 208686.71 ms. Allocated memory was 309.3 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 229.5 MB in the beginning and 603.6 MB in the end (delta: -374.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 5.3 GB. [2018-07-21 21:09:21,712 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 309.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:09:21,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4473.94 ms. Allocated memory was 309.3 MB in the beginning and 409.5 MB in the end (delta: 100.1 MB). Free memory was 229.5 MB in the beginning and 154.5 MB in the end (delta: 75.0 MB). Peak memory consumption was 225.9 MB. Max. memory is 5.3 GB. [2018-07-21 21:09:21,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 380.91 ms. Allocated memory is still 409.5 MB. Free memory was 154.5 MB in the beginning and 107.3 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 5.3 GB. [2018-07-21 21:09:21,714 INFO L168 Benchmark]: Boogie Preprocessor took 1815.27 ms. Allocated memory was 409.5 MB in the beginning and 694.2 MB in the end (delta: 284.7 MB). Free memory was 107.3 MB in the beginning and 471.9 MB in the end (delta: -364.6 MB). Peak memory consumption was 79.3 MB. Max. memory is 5.3 GB. [2018-07-21 21:09:21,715 INFO L168 Benchmark]: RCFGBuilder took 18892.74 ms. Allocated memory was 694.2 MB in the beginning and 1.0 GB in the end (delta: 306.2 MB). Free memory was 471.9 MB in the beginning and 435.8 MB in the end (delta: 36.1 MB). Peak memory consumption was 418.4 MB. Max. memory is 5.3 GB. [2018-07-21 21:09:21,717 INFO L168 Benchmark]: TraceAbstraction took 183107.36 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 435.8 MB in the beginning and 603.6 MB in the end (delta: -167.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-07-21 21:09:21,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 309.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4473.94 ms. Allocated memory was 309.3 MB in the beginning and 409.5 MB in the end (delta: 100.1 MB). Free memory was 229.5 MB in the beginning and 154.5 MB in the end (delta: 75.0 MB). Peak memory consumption was 225.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 380.91 ms. Allocated memory is still 409.5 MB. Free memory was 154.5 MB in the beginning and 107.3 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1815.27 ms. Allocated memory was 409.5 MB in the beginning and 694.2 MB in the end (delta: 284.7 MB). Free memory was 107.3 MB in the beginning and 471.9 MB in the end (delta: -364.6 MB). Peak memory consumption was 79.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 18892.74 ms. Allocated memory was 694.2 MB in the beginning and 1.0 GB in the end (delta: 306.2 MB). Free memory was 471.9 MB in the beginning and 435.8 MB in the end (delta: 36.1 MB). Peak memory consumption was 418.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 183107.36 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 435.8 MB in the beginning and 603.6 MB in the end (delta: -167.8 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: 175]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 175). Cancelled while BasicCegarLoop was constructing difference of abstraction (59948states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (1219 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 183.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 148.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2859 SDtfs, 30277 SDslu, 3479 SDs, 0 SdLazy, 46368 SolverSat, 12102 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 121.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 295 GetRequests, 258 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59948occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9961385228317499 AbsIntWeakeningRatio, 0.10756972111553785 AbsIntAvgWeakeningVarsNumRemoved, 33.49800796812749 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 1663 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1023 ConstructedInterpolants, 0 QuantifiedInterpolants, 701231 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 323/408 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/Problem19_label16_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_21-09-21-743.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label16_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_21-09-21-743.csv Completed graceful shutdown