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/Problem11_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 15:52:57,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 15:52:57,515 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 15:52:57,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 15:52:57,529 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 15:52:57,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 15:52:57,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 15:52:57,535 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 15:52:57,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 15:52:57,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 15:52:57,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 15:52:57,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 15:52:57,541 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 15:52:57,544 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 15:52:57,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 15:52:57,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 15:52:57,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 15:52:57,557 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 15:52:57,558 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 15:52:57,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 15:52:57,562 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 15:52:57,563 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 15:52:57,565 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 15:52:57,565 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 15:52:57,566 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 15:52:57,568 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 15:52:57,568 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 15:52:57,569 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 15:52:57,570 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 15:52:57,574 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 15:52:57,574 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 15:52:57,575 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 15:52:57,575 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 15:52:57,575 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 15:52:57,576 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 15:52:57,577 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 15:52:57,577 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 15:52:57,603 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 15:52:57,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 15:52:57,607 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 15:52:57,607 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 15:52:57,607 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 15:52:57,607 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 15:52:57,608 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 15:52:57,608 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 15:52:57,608 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 15:52:57,608 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 15:52:57,608 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 15:52:57,608 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 15:52:57,610 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 15:52:57,610 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 15:52:57,610 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 15:52:57,610 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 15:52:57,610 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 15:52:57,611 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 15:52:57,611 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 15:52:57,611 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 15:52:57,611 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 15:52:57,611 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 15:52:57,612 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 15:52:57,612 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 15:52:57,612 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 15:52:57,612 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 15:52:57,612 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 15:52:57,612 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 15:52:57,613 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 15:52:57,614 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 15:52:57,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 15:52:57,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 15:52:57,615 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 15:52:57,615 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 15:52:57,615 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 15:52:57,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 15:52:57,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 15:52:57,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 15:52:57,688 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 15:52:57,689 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 15:52:57,689 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label44_true-unreach-call.c [2018-07-21 15:52:58,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/770f62686/244ae7ed00d0464995191377783d2e9c/FLAG28a1011d5 [2018-07-21 15:52:58,399 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 15:52:58,400 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label44_true-unreach-call.c [2018-07-21 15:52:58,434 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/770f62686/244ae7ed00d0464995191377783d2e9c/FLAG28a1011d5 [2018-07-21 15:52:58,456 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/770f62686/244ae7ed00d0464995191377783d2e9c [2018-07-21 15:52:58,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 15:52:58,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 15:52:58,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 15:52:58,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 15:52:58,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 15:52:58,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:52:58" (1/1) ... [2018-07-21 15:52:58,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148681d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:58, skipping insertion in model container [2018-07-21 15:52:58,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:52:58" (1/1) ... [2018-07-21 15:52:58,775 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 15:52:59,251 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 15:52:59,278 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 15:52:59,637 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 15:52:59,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59 WrapperNode [2018-07-21 15:52:59,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 15:52:59,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 15:52:59,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 15:52:59,763 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 15:52:59,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:52:59,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:52:59,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 15:52:59,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 15:52:59,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 15:52:59,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 15:52:59,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:52:59,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:52:59,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:52:59,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:53:00,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:53:00,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:53:00,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (1/1) ... [2018-07-21 15:53:00,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 15:53:00,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 15:53:00,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 15:53:00,091 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 15:53:00,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (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 15:53:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 15:53:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 15:53:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 15:53:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 15:53:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 15:53:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 15:53:00,443 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 15:53:00,443 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 15:53:04,770 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 15:53:04,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:53:04 BoogieIcfgContainer [2018-07-21 15:53:04,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 15:53:04,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 15:53:04,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 15:53:04,807 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 15:53:04,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:52:58" (1/3) ... [2018-07-21 15:53:04,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19979c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:53:04, skipping insertion in model container [2018-07-21 15:53:04,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:52:59" (2/3) ... [2018-07-21 15:53:04,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19979c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:53:04, skipping insertion in model container [2018-07-21 15:53:04,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:53:04" (3/3) ... [2018-07-21 15:53:04,812 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label44_true-unreach-call.c [2018-07-21 15:53:04,819 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 15:53:04,828 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 15:53:04,887 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 15:53:04,888 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 15:53:04,888 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 15:53:04,888 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 15:53:04,889 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 15:53:04,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 15:53:04,889 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 15:53:04,889 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 15:53:04,889 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 15:53:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-07-21 15:53:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-21 15:53:04,940 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 15:53:04,941 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] [2018-07-21 15:53:04,942 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 15:53:04,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1307661615, now seen corresponding path program 1 times [2018-07-21 15:53:04,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 15:53:05,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:05,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 15:53:05,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:05,003 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 15:53:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 15:53:05,451 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 15:53:05,556 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 15:53:05,559 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 15:53:05,559 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 15:53:05,559 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 15:53:05,563 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 15:53:05,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 15:53:05,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 15:53:05,582 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-07-21 15:53:07,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 15:53:07,698 INFO L93 Difference]: Finished difference Result 785 states and 1378 transitions. [2018-07-21 15:53:07,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 15:53:07,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-07-21 15:53:07,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 15:53:07,723 INFO L225 Difference]: With dead ends: 785 [2018-07-21 15:53:07,723 INFO L226 Difference]: Without dead ends: 490 [2018-07-21 15:53:07,733 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 15:53:07,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-07-21 15:53:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 482. [2018-07-21 15:53:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-07-21 15:53:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 841 transitions. [2018-07-21 15:53:07,817 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 841 transitions. Word has length 33 [2018-07-21 15:53:07,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 15:53:07,818 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 841 transitions. [2018-07-21 15:53:07,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 15:53:07,818 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 841 transitions. [2018-07-21 15:53:07,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-21 15:53:07,824 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 15:53:07,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:07,824 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 15:53:07,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1204579620, now seen corresponding path program 1 times [2018-07-21 15:53:07,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 15:53:07,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:07,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 15:53:07,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:07,826 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 15:53:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 15:53:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 15:53:08,227 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 15:53:08,227 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 15:53:08,227 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 15:53:08,229 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 15:53:08,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 15:53:08,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 15:53:08,230 INFO L87 Difference]: Start difference. First operand 482 states and 841 transitions. Second operand 6 states. [2018-07-21 15:53:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 15:53:13,959 INFO L93 Difference]: Finished difference Result 1761 states and 3209 transitions. [2018-07-21 15:53:13,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 15:53:13,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-07-21 15:53:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 15:53:13,977 INFO L225 Difference]: With dead ends: 1761 [2018-07-21 15:53:13,977 INFO L226 Difference]: Without dead ends: 1285 [2018-07-21 15:53:13,983 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 15:53:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2018-07-21 15:53:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1253. [2018-07-21 15:53:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2018-07-21 15:53:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1989 transitions. [2018-07-21 15:53:14,105 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1989 transitions. Word has length 103 [2018-07-21 15:53:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 15:53:14,106 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1989 transitions. [2018-07-21 15:53:14,106 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 15:53:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1989 transitions. [2018-07-21 15:53:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-21 15:53:14,117 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 15:53:14,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:14,118 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 15:53:14,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1122770795, now seen corresponding path program 1 times [2018-07-21 15:53:14,118 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 15:53:14,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:14,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 15:53:14,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:14,122 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 15:53:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 15:53:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 15:53:14,369 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 15:53:14,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 15:53:14,369 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 15:53:14,372 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 15:53:14,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 15:53:14,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 15:53:14,373 INFO L87 Difference]: Start difference. First operand 1253 states and 1989 transitions. Second operand 6 states. [2018-07-21 15:53:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 15:53:16,779 INFO L93 Difference]: Finished difference Result 3468 states and 5572 transitions. [2018-07-21 15:53:16,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 15:53:16,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-07-21 15:53:16,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 15:53:16,799 INFO L225 Difference]: With dead ends: 3468 [2018-07-21 15:53:16,799 INFO L226 Difference]: Without dead ends: 2221 [2018-07-21 15:53:16,805 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 15:53:16,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-07-21 15:53:16,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2196. [2018-07-21 15:53:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2196 states. [2018-07-21 15:53:16,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3228 transitions. [2018-07-21 15:53:16,898 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3228 transitions. Word has length 106 [2018-07-21 15:53:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 15:53:16,899 INFO L471 AbstractCegarLoop]: Abstraction has 2196 states and 3228 transitions. [2018-07-21 15:53:16,900 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 15:53:16,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3228 transitions. [2018-07-21 15:53:16,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-21 15:53:16,908 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 15:53:16,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:16,909 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 15:53:16,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1121882132, now seen corresponding path program 1 times [2018-07-21 15:53:16,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 15:53:16,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:16,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 15:53:16,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:16,911 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 15:53:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 15:53:17,607 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-21 15:53:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 15:53:17,701 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 15:53:17,701 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-21 15:53:17,701 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 15:53:17,702 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 15:53:17,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 15:53:17,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 15:53:17,703 INFO L87 Difference]: Start difference. First operand 2196 states and 3228 transitions. Second operand 7 states. [2018-07-21 15:53:19,243 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-21 15:53:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 15:53:24,389 INFO L93 Difference]: Finished difference Result 5928 states and 8995 transitions. [2018-07-21 15:53:24,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-21 15:53:24,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2018-07-21 15:53:24,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 15:53:24,420 INFO L225 Difference]: With dead ends: 5928 [2018-07-21 15:53:24,420 INFO L226 Difference]: Without dead ends: 3738 [2018-07-21 15:53:24,434 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-21 15:53:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2018-07-21 15:53:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3564. [2018-07-21 15:53:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2018-07-21 15:53:24,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4994 transitions. [2018-07-21 15:53:24,591 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4994 transitions. Word has length 107 [2018-07-21 15:53:24,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 15:53:24,592 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 4994 transitions. [2018-07-21 15:53:24,592 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 15:53:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4994 transitions. [2018-07-21 15:53:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-21 15:53:24,596 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 15:53:24,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:24,597 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 15:53:24,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1513041261, now seen corresponding path program 1 times [2018-07-21 15:53:24,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 15:53:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:24,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 15:53:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:24,598 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 15:53:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 15:53:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 15:53:24,806 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 15:53:24,806 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 15:53:24,806 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 15:53:24,807 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 15:53:24,807 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 15:53:24,807 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 15:53:24,808 INFO L87 Difference]: Start difference. First operand 3564 states and 4994 transitions. Second operand 3 states. [2018-07-21 15:53:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 15:53:27,090 INFO L93 Difference]: Finished difference Result 8045 states and 11702 transitions. [2018-07-21 15:53:27,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 15:53:27,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2018-07-21 15:53:27,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 15:53:27,114 INFO L225 Difference]: With dead ends: 8045 [2018-07-21 15:53:27,115 INFO L226 Difference]: Without dead ends: 4487 [2018-07-21 15:53:27,127 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 15:53:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2018-07-21 15:53:27,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 4426. [2018-07-21 15:53:27,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4426 states. [2018-07-21 15:53:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 5874 transitions. [2018-07-21 15:53:27,260 INFO L78 Accepts]: Start accepts. Automaton has 4426 states and 5874 transitions. Word has length 165 [2018-07-21 15:53:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 15:53:27,261 INFO L471 AbstractCegarLoop]: Abstraction has 4426 states and 5874 transitions. [2018-07-21 15:53:27,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 15:53:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4426 states and 5874 transitions. [2018-07-21 15:53:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-21 15:53:27,264 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 15:53:27,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:27,264 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 15:53:27,265 INFO L82 PathProgramCache]: Analyzing trace with hash -432331542, now seen corresponding path program 1 times [2018-07-21 15:53:27,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 15:53:27,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:27,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 15:53:27,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 15:53:27,266 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 15:53:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 15:53:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-21 15:53:27,790 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 15:53:27,790 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 15:53:27,791 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-07-21 15:53:27,793 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [701], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [786], [790], [801], [805], [809], [813], [817], [821], [832], [836], [840], [844], [848], [852], [856], [867], [871], [875], [886], [890], [893], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-21 15:53:27,908 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 15:53:27,909 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 15:53:46,200 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 15:54:42,811 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 15:54:42,813 INFO L272 AbstractInterpreter]: Visited 155 different actions 453 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-07-21 15:54:42,825 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 15:54:51,253 INFO L232 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 73.39% of their original sizes. [2018-07-21 15:54:51,254 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 15:55:01,131 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 15:55:01,132 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 15:55:01,133 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2018-07-21 15:55:01,133 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 15:55:01,133 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-21 15:55:01,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-21 15:55:01,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-07-21 15:55:01,135 INFO L87 Difference]: Start difference. First operand 4426 states and 5874 transitions. Second operand 16 states. Received shutdown request... [2018-07-21 15:56:31,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-21 15:56:31,993 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 15:56:31,998 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 15:56:31,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:56:31 BoogieIcfgContainer [2018-07-21 15:56:31,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 15:56:31,999 INFO L168 Benchmark]: Toolchain (without parser) took 213530.16 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 248.8 MB in the beginning and 651.7 MB in the end (delta: -402.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-21 15:56:32,000 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 15:56:32,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1285.07 ms. Allocated memory was 305.1 MB in the beginning and 335.0 MB in the end (delta: 29.9 MB). Free memory was 247.8 MB in the beginning and 290.9 MB in the end (delta: -43.0 MB). Peak memory consumption was 80.6 MB. Max. memory is 5.3 GB. [2018-07-21 15:56:32,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.47 ms. Allocated memory is still 335.0 MB. Free memory was 290.9 MB in the beginning and 271.7 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 5.3 GB. [2018-07-21 15:56:32,002 INFO L168 Benchmark]: Boogie Preprocessor took 154.01 ms. Allocated memory is still 335.0 MB. Free memory was 271.7 MB in the beginning and 259.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-07-21 15:56:32,002 INFO L168 Benchmark]: RCFGBuilder took 4711.53 ms. Allocated memory was 335.0 MB in the beginning and 514.9 MB in the end (delta: 179.8 MB). Free memory was 259.7 MB in the beginning and 291.0 MB in the end (delta: -31.4 MB). Peak memory consumption was 164.7 MB. Max. memory is 5.3 GB. [2018-07-21 15:56:32,003 INFO L168 Benchmark]: TraceAbstraction took 207195.61 ms. Allocated memory was 514.9 MB in the beginning and 2.2 GB in the end (delta: 1.7 GB). Free memory was 291.0 MB in the beginning and 651.7 MB in the end (delta: -360.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-21 15:56:32,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1285.07 ms. Allocated memory was 305.1 MB in the beginning and 335.0 MB in the end (delta: 29.9 MB). Free memory was 247.8 MB in the beginning and 290.9 MB in the end (delta: -43.0 MB). Peak memory consumption was 80.6 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 172.47 ms. Allocated memory is still 335.0 MB. Free memory was 290.9 MB in the beginning and 271.7 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 154.01 ms. Allocated memory is still 335.0 MB. Free memory was 271.7 MB in the beginning and 259.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 4711.53 ms. Allocated memory was 335.0 MB in the beginning and 514.9 MB in the end (delta: 179.8 MB). Free memory was 259.7 MB in the beginning and 291.0 MB in the end (delta: -31.4 MB). Peak memory consumption was 164.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 207195.61 ms. Allocated memory was 514.9 MB in the beginning and 2.2 GB in the end (delta: 1.7 GB). Free memory was 291.0 MB in the beginning and 651.7 MB in the end (delta: -360.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 84). Cancelled while BasicCegarLoop was constructing difference of abstraction (4426states) and interpolant automaton (currently 19 states, 16 states before enhancement), while ReachableStatesComputation was computing reachable states (3295 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 207.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 110.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 958 SDtfs, 4904 SDslu, 1396 SDs, 0 SdLazy, 9289 SolverSat, 1702 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 235 GetRequests, 157 SyntacticMatches, 25 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4426occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 75.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9952087007642564 AbsIntWeakeningRatio, 0.12222222222222222 AbsIntAvgWeakeningVarsNumRemoved, 32.916666666666664 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 300 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 689 ConstructedInterpolants, 0 QuantifiedInterpolants, 385951 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 108/130 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/Problem11_label44_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_15-56-32-030.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem11_label44_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_15-56-32-030.csv Completed graceful shutdown