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_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 21:07:55,508 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 21:07:55,509 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 21:07:55,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 21:07:55,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 21:07:55,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 21:07:55,525 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 21:07:55,529 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 21:07:55,530 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 21:07:55,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 21:07:55,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 21:07:55,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 21:07:55,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 21:07:55,535 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 21:07:55,537 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 21:07:55,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 21:07:55,538 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 21:07:55,551 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 21:07:55,553 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 21:07:55,554 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 21:07:55,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 21:07:55,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 21:07:55,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 21:07:55,564 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 21:07:55,564 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 21:07:55,564 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 21:07:55,565 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 21:07:55,568 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 21:07:55,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 21:07:55,570 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 21:07:55,570 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 21:07:55,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 21:07:55,571 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 21:07:55,575 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 21:07:55,576 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 21:07:55,577 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 21:07:55,577 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 21:07:55,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 21:07:55,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 21:07:55,606 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 21:07:55,606 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 21:07:55,606 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 21:07:55,607 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 21:07:55,607 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 21:07:55,607 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 21:07:55,607 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 21:07:55,607 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 21:07:55,607 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 21:07:55,608 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 21:07:55,608 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 21:07:55,608 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 21:07:55,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 21:07:55,609 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 21:07:55,609 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 21:07:55,609 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 21:07:55,609 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 21:07:55,609 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 21:07:55,610 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 21:07:55,611 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 21:07:55,611 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 21:07:55,611 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 21:07:55,612 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:07:55,612 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 21:07:55,612 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 21:07:55,612 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 21:07:55,612 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 21:07:55,612 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 21:07:55,613 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 21:07:55,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 21:07:55,613 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 21:07:55,613 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 21:07:55,613 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 21:07:55,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 21:07:55,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 21:07:55,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 21:07:55,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 21:07:55,686 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 21:07:55,687 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-07-21 21:07:56,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e8f3d96/548ded2574ae48288c4b205729003c0f/FLAGe19edd927 [2018-07-21 21:07:56,703 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 21:07:56,704 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-07-21 21:07:56,764 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e8f3d96/548ded2574ae48288c4b205729003c0f/FLAGe19edd927 [2018-07-21 21:07:56,782 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e8f3d96/548ded2574ae48288c4b205729003c0f [2018-07-21 21:07:56,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 21:07:56,800 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 21:07:56,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 21:07:56,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 21:07:56,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 21:07:56,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:07:56" (1/1) ... [2018-07-21 21:07:56,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4424207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:07:56, skipping insertion in model container [2018-07-21 21:07:56,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:07:56" (1/1) ... [2018-07-21 21:07:57,310 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 21:07:59,249 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:07:59,267 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 21:08:00,778 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:08:01,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01 WrapperNode [2018-07-21 21:08:01,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 21:08:01,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 21:08:01,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 21:08:01,289 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 21:08:01,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:02,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:02,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 21:08:02,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 21:08:02,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 21:08:02,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 21:08:02,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:02,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:02,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:02,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:03,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:03,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:03,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (1/1) ... [2018-07-21 21:08:03,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 21:08:03,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 21:08:03,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 21:08:03,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 21:08:03,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (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 21:08:03,518 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 21:08:03,518 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 21:08:03,518 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 21:08:03,519 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 21:08:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 21:08:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 21:08:03,519 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 21:08:03,519 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 21:08:03,519 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 21:08:03,520 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 21:08:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 21:08:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 21:08:03,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 21:08:03,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 21:08:03,521 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 21:08:03,521 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 21:08:03,521 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 21:08:03,521 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 21:08:23,651 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 21:08:23,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:08:23 BoogieIcfgContainer [2018-07-21 21:08:23,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 21:08:23,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 21:08:23,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 21:08:23,664 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 21:08:23,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:07:56" (1/3) ... [2018-07-21 21:08:23,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f779694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:08:23, skipping insertion in model container [2018-07-21 21:08:23,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:08:01" (2/3) ... [2018-07-21 21:08:23,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f779694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:08:23, skipping insertion in model container [2018-07-21 21:08:23,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:08:23" (3/3) ... [2018-07-21 21:08:23,668 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label23_true-unreach-call.c [2018-07-21 21:08:23,675 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 21:08:23,684 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 21:08:23,756 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 21:08:23,757 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 21:08:23,757 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 21:08:23,757 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 21:08:23,757 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 21:08:23,757 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 21:08:23,757 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 21:08:23,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 21:08:23,758 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 21:08:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-21 21:08:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-21 21:08:23,830 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:08:23,831 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] [2018-07-21 21:08:23,831 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 21:08:23,835 INFO L82 PathProgramCache]: Analyzing trace with hash 851865794, now seen corresponding path program 1 times [2018-07-21 21:08:23,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:08:23,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:08:23,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:08:23,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:08:23,889 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:08:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:08:24,527 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:08:24,627 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 21:08:24,630 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:08:24,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:08:24,630 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:08:24,634 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:08:24,649 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:08:24,650 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:08:24,653 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-21 21:08:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:08:38,871 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-07-21 21:08:38,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:08:38,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-07-21 21:08:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:08:38,937 INFO L225 Difference]: With dead ends: 4999 [2018-07-21 21:08:38,937 INFO L226 Difference]: Without dead ends: 3219 [2018-07-21 21:08:38,954 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 21:08:38,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-07-21 21:08:39,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-07-21 21:08:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-07-21 21:08:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-07-21 21:08:39,195 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 59 [2018-07-21 21:08:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:08:39,197 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-07-21 21:08:39,197 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:08:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-07-21 21:08:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-21 21:08:39,209 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:08:39,211 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, 1, 1, 1, 1, 1, 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 21:08:39,212 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 21:08:39,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1487129686, now seen corresponding path program 1 times [2018-07-21 21:08:39,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:08:39,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:08:39,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:08:39,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:08:39,214 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:08:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:08:39,595 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:08:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:08:40,007 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:08:40,007 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:08:40,007 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:08:40,009 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:08:40,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:08:40,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:08:40,009 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-07-21 21:09:05,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:09:05,714 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-07-21 21:09:05,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:09:05,718 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-07-21 21:09:05,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:09:05,760 INFO L225 Difference]: With dead ends: 9331 [2018-07-21 21:09:05,761 INFO L226 Difference]: Without dead ends: 6122 [2018-07-21 21:09:05,772 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:09:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-07-21 21:09:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-07-21 21:09:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-07-21 21:09:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-07-21 21:09:06,002 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 131 [2018-07-21 21:09:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:09:06,003 INFO L471 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-07-21 21:09:06,003 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:09:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-07-21 21:09:06,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-21 21:09:06,013 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:09:06,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:06,013 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 21:09:06,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1232087700, now seen corresponding path program 1 times [2018-07-21 21:09:06,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:09:06,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:09:06,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:09:06,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:09:06,023 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:09:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:09:06,387 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 21:09:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:09:06,766 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:09:06,766 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:09:06,766 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:09:06,768 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:09:06,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:09:06,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:09:06,769 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-07-21 21:09:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:09:18,622 INFO L93 Difference]: Finished difference Result 13731 states and 21806 transitions. [2018-07-21 21:09:18,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:09:18,623 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-07-21 21:09:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:09:18,671 INFO L225 Difference]: With dead ends: 13731 [2018-07-21 21:09:18,671 INFO L226 Difference]: Without dead ends: 7653 [2018-07-21 21:09:18,687 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:09:18,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7653 states. [2018-07-21 21:09:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7653 to 7595. [2018-07-21 21:09:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7595 states. [2018-07-21 21:09:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7595 states to 7595 states and 11259 transitions. [2018-07-21 21:09:18,920 INFO L78 Accepts]: Start accepts. Automaton has 7595 states and 11259 transitions. Word has length 149 [2018-07-21 21:09:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:09:18,922 INFO L471 AbstractCegarLoop]: Abstraction has 7595 states and 11259 transitions. [2018-07-21 21:09:18,923 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:09:18,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7595 states and 11259 transitions. [2018-07-21 21:09:18,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-21 21:09:18,925 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:09:18,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:18,929 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 21:09:18,929 INFO L82 PathProgramCache]: Analyzing trace with hash 340736752, now seen corresponding path program 1 times [2018-07-21 21:09:18,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:09:18,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:09:18,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:09:18,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:09:18,930 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:09:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:09:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:09:19,187 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:09:19,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 21:09:19,188 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:09:19,188 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 21:09:19,189 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 21:09:19,189 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 21:09:19,189 INFO L87 Difference]: Start difference. First operand 7595 states and 11259 transitions. Second operand 6 states. [2018-07-21 21:10:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:10:04,617 INFO L93 Difference]: Finished difference Result 30495 states and 47312 transitions. [2018-07-21 21:10:04,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 21:10:04,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-07-21 21:10:04,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:10:04,754 INFO L225 Difference]: With dead ends: 30495 [2018-07-21 21:10:04,754 INFO L226 Difference]: Without dead ends: 22906 [2018-07-21 21:10:04,801 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 21:10:04,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22906 states. [2018-07-21 21:10:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22906 to 22775. [2018-07-21 21:10:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22775 states. [2018-07-21 21:10:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22775 states to 22775 states and 31880 transitions. [2018-07-21 21:10:05,451 INFO L78 Accepts]: Start accepts. Automaton has 22775 states and 31880 transitions. Word has length 151 [2018-07-21 21:10:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:10:05,452 INFO L471 AbstractCegarLoop]: Abstraction has 22775 states and 31880 transitions. [2018-07-21 21:10:05,452 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 21:10:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 22775 states and 31880 transitions. [2018-07-21 21:10:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-07-21 21:10:05,459 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:10:05,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:05,460 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 21:10:05,460 INFO L82 PathProgramCache]: Analyzing trace with hash -314915177, now seen corresponding path program 1 times [2018-07-21 21:10:05,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:10:05,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:10:05,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:10:05,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:10:05,461 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:10:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:10:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:10:05,897 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:10:05,897 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 21:10:05,897 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:10:05,898 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 21:10:05,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 21:10:05,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 21:10:05,900 INFO L87 Difference]: Start difference. First operand 22775 states and 31880 transitions. Second operand 5 states. [2018-07-21 21:10:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:10:28,404 INFO L93 Difference]: Finished difference Result 68694 states and 102042 transitions. [2018-07-21 21:10:28,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:10:28,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-07-21 21:10:28,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:10:28,619 INFO L225 Difference]: With dead ends: 68694 [2018-07-21 21:10:28,619 INFO L226 Difference]: Without dead ends: 45925 [2018-07-21 21:10:28,689 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 21:10:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45925 states. [2018-07-21 21:10:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45925 to 44698. [2018-07-21 21:10:29,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44698 states. [2018-07-21 21:10:29,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44698 states to 44698 states and 60306 transitions. [2018-07-21 21:10:29,805 INFO L78 Accepts]: Start accepts. Automaton has 44698 states and 60306 transitions. Word has length 194 [2018-07-21 21:10:29,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:10:29,806 INFO L471 AbstractCegarLoop]: Abstraction has 44698 states and 60306 transitions. [2018-07-21 21:10:29,806 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 21:10:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 44698 states and 60306 transitions. [2018-07-21 21:10:29,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-07-21 21:10:29,814 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:10:29,815 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, 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] [2018-07-21 21:10:29,815 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 21:10:29,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1537978298, now seen corresponding path program 1 times [2018-07-21 21:10:29,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:10:29,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:10:29,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:10:29,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:10:29,816 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:10:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:10:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 21:10:30,151 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:10:30,151 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 21:10:30,152 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-07-21 21:10:30,154 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], [5622], [5624], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5723], [5731], [5739], [5751], [5755], [5766], [5769], [5770], [5774], [5778], [5782], [5786], [5790], [5794], [5798], [5802], [5805], [6826], [6833], [6834], [6835], [6837], [6838] [2018-07-21 21:10:30,245 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 21:10:30,245 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 21:10:38,924 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 21:10:43,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 21:10:43,042 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 21:10:43,087 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 21:10:53,270 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 75.86% of their original sizes. [2018-07-21 21:10:53,270 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 21:10:53,941 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 21:10:53,945 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 21:10:53,945 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-07-21 21:10:53,945 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:10:53,946 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 21:10:53,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 21:10:53,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 21:10:53,947 INFO L87 Difference]: Start difference. First operand 44698 states and 60306 transitions. Second operand 7 states. Received shutdown request... [2018-07-21 21:11:21,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 21:11:21,446 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 21:11:21,452 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 21:11:21,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:11:21 BoogieIcfgContainer [2018-07-21 21:11:21,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 21:11:21,453 INFO L168 Benchmark]: Toolchain (without parser) took 204658.73 ms. Allocated memory was 309.9 MB in the beginning and 2.3 GB in the end (delta: 1.9 GB). Free memory was 228.0 MB in the beginning and 147.1 MB in the end (delta: 80.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 5.3 GB. [2018-07-21 21:11:21,454 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:11:21,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4486.49 ms. Allocated memory was 309.9 MB in the beginning and 393.7 MB in the end (delta: 83.9 MB). Free memory was 227.1 MB in the beginning and 113.6 MB in the end (delta: 113.4 MB). Peak memory consumption was 213.0 MB. Max. memory is 5.3 GB. [2018-07-21 21:11:21,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 1437.98 ms. Allocated memory was 393.7 MB in the beginning and 676.3 MB in the end (delta: 282.6 MB). Free memory was 113.6 MB in the beginning and 512.0 MB in the end (delta: -398.4 MB). Peak memory consumption was 89.8 MB. Max. memory is 5.3 GB. [2018-07-21 21:11:21,456 INFO L168 Benchmark]: Boogie Preprocessor took 722.72 ms. Allocated memory is still 676.3 MB. Free memory was 512.0 MB in the beginning and 413.6 MB in the end (delta: 98.4 MB). Peak memory consumption was 98.4 MB. Max. memory is 5.3 GB. [2018-07-21 21:11:21,456 INFO L168 Benchmark]: RCFGBuilder took 20201.84 ms. Allocated memory was 676.3 MB in the beginning and 945.8 MB in the end (delta: 269.5 MB). Free memory was 413.6 MB in the beginning and 360.4 MB in the end (delta: 53.1 MB). Peak memory consumption was 339.2 MB. Max. memory is 5.3 GB. [2018-07-21 21:11:21,460 INFO L168 Benchmark]: TraceAbstraction took 177799.79 ms. Allocated memory was 945.8 MB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 360.4 MB in the beginning and 147.1 MB in the end (delta: 213.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-21 21:11:21,464 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4486.49 ms. Allocated memory was 309.9 MB in the beginning and 393.7 MB in the end (delta: 83.9 MB). Free memory was 227.1 MB in the beginning and 113.6 MB in the end (delta: 113.4 MB). Peak memory consumption was 213.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 1437.98 ms. Allocated memory was 393.7 MB in the beginning and 676.3 MB in the end (delta: 282.6 MB). Free memory was 113.6 MB in the beginning and 512.0 MB in the end (delta: -398.4 MB). Peak memory consumption was 89.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 722.72 ms. Allocated memory is still 676.3 MB. Free memory was 512.0 MB in the beginning and 413.6 MB in the end (delta: 98.4 MB). Peak memory consumption was 98.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 20201.84 ms. Allocated memory was 676.3 MB in the beginning and 945.8 MB in the end (delta: 269.5 MB). Free memory was 413.6 MB in the beginning and 360.4 MB in the end (delta: 53.1 MB). Peak memory consumption was 339.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 177799.79 ms. Allocated memory was 945.8 MB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 360.4 MB in the beginning and 147.1 MB in the end (delta: 213.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (44698states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (599 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 177.7s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 147.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2995 SDtfs, 27090 SDslu, 3545 SDs, 0 SdLazy, 48824 SolverSat, 12320 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 125.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 260 GetRequests, 221 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44698occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9954496208017335 AbsIntWeakeningRatio, 0.1267605633802817 AbsIntAvgWeakeningVarsNumRemoved, 39.72769953051643 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1458 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 898 NumberOfCodeBlocks, 898 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 892 ConstructedInterpolants, 0 QuantifiedInterpolants, 457928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 317/385 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_label23_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_21-11-21-475.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label23_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_21-11-21-475.csv Completed graceful shutdown