java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:55:50,545 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:55:50,547 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:55:50,560 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:55:50,560 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:55:50,561 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:55:50,562 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:55:50,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:55:50,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:55:50,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:55:50,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:55:50,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:55:50,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:55:50,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:55:50,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:55:50,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:55:50,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:55:50,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:55:50,577 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:55:50,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:55:50,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:55:50,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:55:50,584 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:55:50,584 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:55:50,584 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:55:50,585 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:55:50,586 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:55:50,587 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:55:50,588 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:55:50,589 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:55:50,590 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:55:50,590 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:55:50,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:55:50,591 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:55:50,592 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:55:50,593 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:55:50,593 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:55:50,623 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:55:50,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:55:50,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:55:50,625 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:55:50,625 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:55:50,625 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:55:50,626 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:55:50,626 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:55:50,626 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:55:50,626 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:55:50,626 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:55:50,627 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:55:50,627 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:55:50,627 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:55:50,628 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:55:50,628 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:55:50,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:55:50,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:55:50,628 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:55:50,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:55:50,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:55:50,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:55:50,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:55:50,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:55:50,630 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:55:50,630 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:55:50,630 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:55:50,630 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:55:50,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:55:50,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:55:50,631 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:55:50,631 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:55:50,631 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:55:50,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:55:50,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:55:50,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:55:50,698 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:55:50,698 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:55:50,699 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label25_false-unreach-call.c [2018-07-23 19:55:51,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f94d77b3f/322475cf173148369b61ed16e6132bfd/FLAGbf2275dc5 [2018-07-23 19:55:51,455 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:55:51,456 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label25_false-unreach-call.c [2018-07-23 19:55:51,487 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f94d77b3f/322475cf173148369b61ed16e6132bfd/FLAGbf2275dc5 [2018-07-23 19:55:51,504 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f94d77b3f/322475cf173148369b61ed16e6132bfd [2018-07-23 19:55:51,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:55:51,518 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:55:51,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:55:51,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:55:51,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:55:51,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:55:51" (1/1) ... [2018-07-23 19:55:51,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e286a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:51, skipping insertion in model container [2018-07-23 19:55:51,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:55:51" (1/1) ... [2018-07-23 19:55:51,825 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:55:52,617 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:55:52,637 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:55:53,175 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:55:53,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53 WrapperNode [2018-07-23 19:55:53,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:55:53,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:55:53,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:55:53,394 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:55:53,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:53,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:53,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:55:53,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:55:53,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:55:53,716 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:55:54,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... [2018-07-23 19:55:54,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:55:54,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:55:54,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:55:54,609 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:55:54,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:55:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:55:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:55:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:55:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:55:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:55:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:55:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:55:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:55:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:55:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:56:06,573 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:56:06,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:56:06 BoogieIcfgContainer [2018-07-23 19:56:06,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:56:06,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:56:06,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:56:06,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:56:06,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:55:51" (1/3) ... [2018-07-23 19:56:06,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b35ffb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:56:06, skipping insertion in model container [2018-07-23 19:56:06,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:55:53" (2/3) ... [2018-07-23 19:56:06,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b35ffb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:56:06, skipping insertion in model container [2018-07-23 19:56:06,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:56:06" (3/3) ... [2018-07-23 19:56:06,597 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label25_false-unreach-call.c [2018-07-23 19:56:06,608 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:56:06,618 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:56:06,675 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:56:06,676 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:56:06,676 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:56:06,676 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:56:06,676 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:56:06,677 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:56:06,677 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:56:06,677 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:56:06,677 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:56:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-23 19:56:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 19:56:06,720 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:56:06,722 INFO L353 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] [2018-07-23 19:56:06,722 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:56:06,728 INFO L82 PathProgramCache]: Analyzing trace with hash 162042820, now seen corresponding path program 1 times [2018-07-23 19:56:06,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:56:06,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:06,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:56:06,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:06,778 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:56:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:56:07,220 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-23 19:56:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:56:07,238 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:56:07,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:56:07,239 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:56:07,246 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:56:07,263 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:56:07,264 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:56:07,267 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-23 19:56:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:56:18,843 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-07-23 19:56:18,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:56:18,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-07-23 19:56:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:56:18,895 INFO L225 Difference]: With dead ends: 2166 [2018-07-23 19:56:18,896 INFO L226 Difference]: Without dead ends: 1556 [2018-07-23 19:56:18,912 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:56:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-07-23 19:56:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-07-23 19:56:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-23 19:56:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-07-23 19:56:19,057 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 30 [2018-07-23 19:56:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:56:19,058 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-07-23 19:56:19,058 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:56:19,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-07-23 19:56:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 19:56:19,067 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:56:19,069 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:56:19,069 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:56:19,070 INFO L82 PathProgramCache]: Analyzing trace with hash -678027702, now seen corresponding path program 1 times [2018-07-23 19:56:19,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:56:19,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:19,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:56:19,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:19,073 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:56:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:56:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:56:19,535 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:56:19,536 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:56:19,536 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:56:19,538 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:56:19,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:56:19,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:56:19,539 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-07-23 19:56:32,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:56:32,399 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-07-23 19:56:32,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:56:32,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-07-23 19:56:32,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:56:32,417 INFO L225 Difference]: With dead ends: 3059 [2018-07-23 19:56:32,417 INFO L226 Difference]: Without dead ends: 1997 [2018-07-23 19:56:32,422 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:56:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-07-23 19:56:32,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-07-23 19:56:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-07-23 19:56:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-07-23 19:56:32,504 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 106 [2018-07-23 19:56:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:56:32,505 INFO L471 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-07-23 19:56:32,505 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:56:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-07-23 19:56:32,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 19:56:32,518 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:56:32,518 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:56:32,518 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:56:32,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1546400322, now seen corresponding path program 1 times [2018-07-23 19:56:32,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:56:32,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:32,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:56:32,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:32,521 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:56:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:56:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:56:32,742 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:56:32,742 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:56:32,742 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:56:32,743 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:56:32,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:56:32,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:56:32,744 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-07-23 19:56:40,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:56:40,962 INFO L93 Difference]: Finished difference Result 5318 states and 8626 transitions. [2018-07-23 19:56:40,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:56:40,963 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-07-23 19:56:40,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:56:40,987 INFO L225 Difference]: With dead ends: 5318 [2018-07-23 19:56:40,987 INFO L226 Difference]: Without dead ends: 3349 [2018-07-23 19:56:40,997 INFO L573 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 [2018-07-23 19:56:41,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2018-07-23 19:56:41,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3316. [2018-07-23 19:56:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2018-07-23 19:56:41,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4711 transitions. [2018-07-23 19:56:41,098 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4711 transitions. Word has length 110 [2018-07-23 19:56:41,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:56:41,099 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 4711 transitions. [2018-07-23 19:56:41,099 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:56:41,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4711 transitions. [2018-07-23 19:56:41,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 19:56:41,106 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:56:41,106 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:56:41,108 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:56:41,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1532557345, now seen corresponding path program 1 times [2018-07-23 19:56:41,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:56:41,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:41,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:56:41,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:41,109 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:56:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:56:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:56:41,369 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:56:41,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:56:41,369 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:56:41,370 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:56:41,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:56:41,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:56:41,371 INFO L87 Difference]: Start difference. First operand 3316 states and 4711 transitions. Second operand 4 states. [2018-07-23 19:56:49,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:56:49,827 INFO L93 Difference]: Finished difference Result 7062 states and 10217 transitions. [2018-07-23 19:56:49,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:56:49,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2018-07-23 19:56:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:56:49,853 INFO L225 Difference]: With dead ends: 7062 [2018-07-23 19:56:49,854 INFO L226 Difference]: Without dead ends: 3752 [2018-07-23 19:56:49,870 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:56:49,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2018-07-23 19:56:49,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3752. [2018-07-23 19:56:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3752 states. [2018-07-23 19:56:49,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5064 transitions. [2018-07-23 19:56:49,985 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5064 transitions. Word has length 140 [2018-07-23 19:56:49,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:56:49,986 INFO L471 AbstractCegarLoop]: Abstraction has 3752 states and 5064 transitions. [2018-07-23 19:56:49,986 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:56:49,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5064 transitions. [2018-07-23 19:56:49,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-07-23 19:56:49,990 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:56:49,990 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:56:49,991 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:56:49,991 INFO L82 PathProgramCache]: Analyzing trace with hash 529423416, now seen corresponding path program 1 times [2018-07-23 19:56:49,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:56:49,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:49,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:56:49,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:56:49,996 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:56:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:56:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-23 19:56:50,262 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:56:50,262 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:56:50,262 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:56:50,263 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:56:50,263 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:56:50,263 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:56:50,264 INFO L87 Difference]: Start difference. First operand 3752 states and 5064 transitions. Second operand 4 states. [2018-07-23 19:57:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:57:02,110 INFO L93 Difference]: Finished difference Result 12793 states and 17458 transitions. [2018-07-23 19:57:02,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:57:02,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 194 [2018-07-23 19:57:02,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:57:02,150 INFO L225 Difference]: With dead ends: 12793 [2018-07-23 19:57:02,150 INFO L226 Difference]: Without dead ends: 9047 [2018-07-23 19:57:02,166 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:57:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9047 states. [2018-07-23 19:57:02,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9047 to 9043. [2018-07-23 19:57:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9043 states. [2018-07-23 19:57:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9043 states to 9043 states and 11277 transitions. [2018-07-23 19:57:02,382 INFO L78 Accepts]: Start accepts. Automaton has 9043 states and 11277 transitions. Word has length 194 [2018-07-23 19:57:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:57:02,383 INFO L471 AbstractCegarLoop]: Abstraction has 9043 states and 11277 transitions. [2018-07-23 19:57:02,383 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:57:02,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9043 states and 11277 transitions. [2018-07-23 19:57:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-07-23 19:57:02,389 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:57:02,390 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 19:57:02,390 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:57:02,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1210671667, now seen corresponding path program 1 times [2018-07-23 19:57:02,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:57:02,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:57:02,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:57:02,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:57:02,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:57:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:57:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 46 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 19:57:02,984 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:57:02,984 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:57:02,985 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-07-23 19:57:02,987 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [874], [876], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1255], [1256], [1260], [1264], [1268], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1311], [1315], [1319], [1323], [1327], [1331], [1342], [1346], [1350], [1354], [1358], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1408], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-23 19:57:03,056 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:57:03,057 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:57:49,216 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:57:49,218 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-23 19:57:49,253 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:58:10,560 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 75.27% of their original sizes. [2018-07-23 19:58:10,560 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:58:11,190 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:58:11,191 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:58:11,191 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-23 19:58:11,191 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:58:11,192 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 19:58:11,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 19:58:11,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:58:11,193 INFO L87 Difference]: Start difference. First operand 9043 states and 11277 transitions. Second operand 8 states. [2018-07-23 19:58:38,816 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 19:59:40,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:59:40,885 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:59:40,890 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:59:40,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:59:40 BoogieIcfgContainer [2018-07-23 19:59:40,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:59:40,891 INFO L168 Benchmark]: Toolchain (without parser) took 229374.82 ms. Allocated memory was 1.5 GB in the beginning and 6.1 GB in the end (delta: 4.6 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -993.5 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-07-23 19:59:40,894 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:59:40,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1873.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:59:40,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 321.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:59:40,896 INFO L168 Benchmark]: Boogie Preprocessor took 893.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 907.5 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:59:40,897 INFO L168 Benchmark]: RCFGBuilder took 11966.28 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 507.3 MB). Peak memory consumption was 507.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:59:40,898 INFO L168 Benchmark]: TraceAbstraction took 214314.78 ms. Allocated memory was 2.4 GB in the beginning and 6.1 GB in the end (delta: 3.7 GB). Free memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: -604.0 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-07-23 19:59:40,903 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1873.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 321.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 893.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 907.5 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11966.28 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 507.3 MB). Peak memory consumption was 507.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214314.78 ms. Allocated memory was 2.4 GB in the beginning and 6.1 GB in the end (delta: 3.7 GB). Free memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: -604.0 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 77). Cancelled while BasicCegarLoop was constructing difference of abstraction (9043states) and interpolant automaton (currently 7 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (159 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 214.2s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 142.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2076 SDtfs, 7220 SDslu, 1250 SDs, 0 SdLazy, 12646 SolverSat, 3414 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 135.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 253 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9043occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 46.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9955128205128204 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 1042.773148148148 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 547 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 791 ConstructedInterpolants, 0 QuantifiedInterpolants, 616552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 242/314 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label25_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-59-40-920.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label25_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-59-40-920.csv Completed graceful shutdown