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/Problem18_label06_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:01:37,462 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:01:37,465 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:01:37,481 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:01:37,482 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:01:37,483 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:01:37,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:01:37,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:01:37,491 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:01:37,499 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:01:37,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:01:37,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:01:37,502 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:01:37,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:01:37,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:01:37,507 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:01:37,508 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:01:37,511 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:01:37,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:01:37,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:01:37,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:01:37,520 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:01:37,525 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:01:37,525 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:01:37,526 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:01:37,527 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:01:37,528 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:01:37,529 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:01:37,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:01:37,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:01:37,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:01:37,532 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:01:37,532 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:01:37,534 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:01:37,535 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:01:37,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:01:37,536 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 20:01:37,557 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:01:37,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:01:37,558 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:01:37,559 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:01:37,559 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:01:37,559 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:01:37,559 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:01:37,560 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:01:37,560 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:01:37,560 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:01:37,560 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:01:37,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:01:37,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:01:37,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:01:37,561 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:01:37,562 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:01:37,562 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:01:37,562 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:01:37,562 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:01:37,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:01:37,563 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:01:37,563 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:01:37,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:01:37,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:01:37,564 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:01:37,564 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:01:37,564 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:01:37,564 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:01:37,564 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:01:37,565 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:01:37,565 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:01:37,565 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:01:37,565 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:01:37,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:01:37,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:01:37,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:01:37,644 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:01:37,644 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:01:37,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label06_false-unreach-call.c [2018-07-23 20:01:37,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/454ace3b2/c64389f34cd24bbd94fdd548f102f6e9/FLAGfcf98aeeb [2018-07-23 20:01:38,431 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:01:38,432 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label06_false-unreach-call.c [2018-07-23 20:01:38,465 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/454ace3b2/c64389f34cd24bbd94fdd548f102f6e9/FLAGfcf98aeeb [2018-07-23 20:01:38,485 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/454ace3b2/c64389f34cd24bbd94fdd548f102f6e9 [2018-07-23 20:01:38,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:01:38,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:01:38,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:01:38,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:01:38,510 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:01:38,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:01:38" (1/1) ... [2018-07-23 20:01:38,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bd3de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:38, skipping insertion in model container [2018-07-23 20:01:38,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:01:38" (1/1) ... [2018-07-23 20:01:38,827 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:01:39,644 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:01:39,665 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:01:40,643 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:01:40,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40 WrapperNode [2018-07-23 20:01:40,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:01:40,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:01:40,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:01:40,798 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:01:40,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:40,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:40,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:01:40,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:01:40,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:01:40,996 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:01:41,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (1/1) ... [2018-07-23 20:01:41,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:01:41,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:01:41,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:01:41,650 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:01:41,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (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 20:01:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:01:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:01:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:01:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:01:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:01:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:01:41,729 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 20:01:41,729 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 20:01:41,729 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_output3 [2018-07-23 20:01:41,729 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_output3 [2018-07-23 20:01:41,729 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 20:01:41,729 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 20:01:50,133 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:01:50,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:01:50 BoogieIcfgContainer [2018-07-23 20:01:50,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:01:50,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:01:50,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:01:50,144 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:01:50,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:01:38" (1/3) ... [2018-07-23 20:01:50,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54065b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:01:50, skipping insertion in model container [2018-07-23 20:01:50,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:40" (2/3) ... [2018-07-23 20:01:50,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54065b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:01:50, skipping insertion in model container [2018-07-23 20:01:50,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:01:50" (3/3) ... [2018-07-23 20:01:50,152 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label06_false-unreach-call.c [2018-07-23 20:01:50,164 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:01:50,179 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:01:50,248 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:01:50,249 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:01:50,249 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:01:50,249 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:01:50,249 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:01:50,250 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:01:50,250 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:01:50,250 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:01:50,250 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:01:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-23 20:01:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 20:01:50,294 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:01:50,295 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, 1, 1] [2018-07-23 20:01:50,296 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 20:01:50,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1464333972, now seen corresponding path program 1 times [2018-07-23 20:01:50,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:01:50,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:50,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:01:50,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:50,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:01:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:01:50,749 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 20:01:50,752 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:01:50,752 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:01:50,752 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:01:50,759 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:01:50,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:01:50,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:01:50,780 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-23 20:01:57,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:01:57,429 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-23 20:01:57,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:01:57,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-07-23 20:01:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:01:57,466 INFO L225 Difference]: With dead ends: 2251 [2018-07-23 20:01:57,466 INFO L226 Difference]: Without dead ends: 1474 [2018-07-23 20:01:57,475 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:01:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-23 20:01:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-23 20:01:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-23 20:01:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-07-23 20:01:57,624 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 32 [2018-07-23 20:01:57,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:01:57,625 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-07-23 20:01:57,625 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:01:57,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-07-23 20:01:57,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 20:01:57,636 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:01:57,637 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:01:57,637 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 20:01:57,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1900766450, now seen corresponding path program 1 times [2018-07-23 20:01:57,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:01:57,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:57,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:01:57,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:57,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:01:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:01:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:01:57,958 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:01:57,958 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:01:57,959 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:01:57,961 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:01:57,961 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:01:57,961 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:01:57,961 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-07-23 20:02:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:02:07,834 INFO L93 Difference]: Finished difference Result 4422 states and 8490 transitions. [2018-07-23 20:02:07,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:02:07,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-07-23 20:02:07,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:02:07,858 INFO L225 Difference]: With dead ends: 4422 [2018-07-23 20:02:07,858 INFO L226 Difference]: Without dead ends: 2954 [2018-07-23 20:02:07,864 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:02:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-07-23 20:02:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2928. [2018-07-23 20:02:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-07-23 20:02:07,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5031 transitions. [2018-07-23 20:02:07,970 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5031 transitions. Word has length 106 [2018-07-23 20:02:07,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:02:07,971 INFO L471 AbstractCegarLoop]: Abstraction has 2928 states and 5031 transitions. [2018-07-23 20:02:07,971 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:02:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5031 transitions. [2018-07-23 20:02:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 20:02:07,976 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:02:07,977 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, 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] [2018-07-23 20:02:07,977 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 20:02:07,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1588922051, now seen corresponding path program 1 times [2018-07-23 20:02:07,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:02:07,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:07,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:02:07,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:07,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:02:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:02:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:02:08,256 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:02:08,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:02:08,257 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:02:08,257 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:02:08,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:02:08,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:02:08,258 INFO L87 Difference]: Start difference. First operand 2928 states and 5031 transitions. Second operand 6 states. [2018-07-23 20:02:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:02:22,613 INFO L93 Difference]: Finished difference Result 11827 states and 21334 transitions. [2018-07-23 20:02:22,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 20:02:22,614 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-07-23 20:02:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:02:22,671 INFO L225 Difference]: With dead ends: 11827 [2018-07-23 20:02:22,671 INFO L226 Difference]: Without dead ends: 8905 [2018-07-23 20:02:22,811 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 20:02:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8905 states. [2018-07-23 20:02:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8905 to 8827. [2018-07-23 20:02:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8827 states. [2018-07-23 20:02:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8827 states to 8827 states and 13810 transitions. [2018-07-23 20:02:23,083 INFO L78 Accepts]: Start accepts. Automaton has 8827 states and 13810 transitions. Word has length 109 [2018-07-23 20:02:23,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:02:23,084 INFO L471 AbstractCegarLoop]: Abstraction has 8827 states and 13810 transitions. [2018-07-23 20:02:23,084 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:02:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8827 states and 13810 transitions. [2018-07-23 20:02:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 20:02:23,092 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:02:23,092 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, 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] [2018-07-23 20:02:23,092 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 20:02:23,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1522992857, now seen corresponding path program 1 times [2018-07-23 20:02:23,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:02:23,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:23,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:02:23,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:23,099 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:02:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:02:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:02:23,358 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:02:23,358 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 20:02:23,358 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:02:23,358 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 20:02:23,359 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 20:02:23,359 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:02:23,360 INFO L87 Difference]: Start difference. First operand 8827 states and 13810 transitions. Second operand 4 states. [2018-07-23 20:02:29,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:02:29,516 INFO L93 Difference]: Finished difference Result 21978 states and 34395 transitions. [2018-07-23 20:02:29,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:02:29,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2018-07-23 20:02:29,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:02:29,579 INFO L225 Difference]: With dead ends: 21978 [2018-07-23 20:02:29,579 INFO L226 Difference]: Without dead ends: 13157 [2018-07-23 20:02:29,621 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 20:02:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13157 states. [2018-07-23 20:02:29,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13157 to 13142. [2018-07-23 20:02:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13142 states. [2018-07-23 20:02:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13142 states to 13142 states and 18872 transitions. [2018-07-23 20:02:29,946 INFO L78 Accepts]: Start accepts. Automaton has 13142 states and 18872 transitions. Word has length 139 [2018-07-23 20:02:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:02:29,946 INFO L471 AbstractCegarLoop]: Abstraction has 13142 states and 18872 transitions. [2018-07-23 20:02:29,946 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 20:02:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 13142 states and 18872 transitions. [2018-07-23 20:02:29,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 20:02:29,951 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:02:29,951 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:02:29,951 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 20:02:29,951 INFO L82 PathProgramCache]: Analyzing trace with hash -387462091, now seen corresponding path program 1 times [2018-07-23 20:02:29,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:02:29,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:29,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:02:29,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:29,956 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:02:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:02:30,223 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:02:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 50 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:02:30,298 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:02:30,298 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:02:30,299 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-07-23 20:02:30,301 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1803], [1805], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2140], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2168], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:02:30,509 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:02:30,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:02:33,677 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:02:33,679 INFO L272 AbstractInterpreter]: Visited 82 different actions 82 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 20:02:33,723 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:02:36,094 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 77.76% of their original sizes. [2018-07-23 20:02:36,095 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:02:36,352 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:02:36,353 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:02:36,353 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-07-23 20:02:36,353 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:02:36,354 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 20:02:36,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 20:02:36,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 20:02:36,355 INFO L87 Difference]: Start difference. First operand 13142 states and 18872 transitions. Second operand 7 states. [2018-07-23 20:02:53,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 20:04:22,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:04:22,861 INFO L93 Difference]: Finished difference Result 26983 states and 38576 transitions. [2018-07-23 20:04:22,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:04:22,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2018-07-23 20:04:22,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:04:22,905 INFO L225 Difference]: With dead ends: 26983 [2018-07-23 20:04:22,905 INFO L226 Difference]: Without dead ends: 13847 [2018-07-23 20:04:22,931 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 20:04:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13847 states. [2018-07-23 20:04:23,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13847 to 13845. [2018-07-23 20:04:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13845 states. [2018-07-23 20:04:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13845 states to 13845 states and 19584 transitions. [2018-07-23 20:04:23,261 INFO L78 Accepts]: Start accepts. Automaton has 13845 states and 19584 transitions. Word has length 179 [2018-07-23 20:04:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:04:23,262 INFO L471 AbstractCegarLoop]: Abstraction has 13845 states and 19584 transitions. [2018-07-23 20:04:23,262 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 20:04:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 13845 states and 19584 transitions. [2018-07-23 20:04:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2018-07-23 20:04:23,270 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:04:23,270 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:04:23,271 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 20:04:23,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1745599942, now seen corresponding path program 1 times [2018-07-23 20:04:23,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:04:23,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:23,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:04:23,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:23,272 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:04:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:04:23,768 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:04:23,979 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:04:24,193 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:04:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 134 proven. 153 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:04:24,687 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:04:24,687 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:04:24,688 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 367 with the following transitions: [2018-07-23 20:04:24,688 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1803], [1805], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2140], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2168], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2608], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:04:24,698 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:04:24,698 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:04:55,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:04:55,106 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 20:04:55,116 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:05:06,899 INFO L232 lantSequenceWeakener]: Weakened 364 states. On average, predicates are now at 77.56% of their original sizes. [2018-07-23 20:05:06,899 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:05:07,989 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:05:07,989 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:05:07,990 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-23 20:05:07,990 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:05:07,991 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 20:05:07,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 20:05:07,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 20:05:07,992 INFO L87 Difference]: Start difference. First operand 13845 states and 19584 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 20:05:23,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:05:23,620 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:05:23,625 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:05:23,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:05:23 BoogieIcfgContainer [2018-07-23 20:05:23,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:05:23,627 INFO L168 Benchmark]: Toolchain (without parser) took 225127.58 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -185.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-07-23 20:05:23,628 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:05:23,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2295.22 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:23,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 198.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:23,630 INFO L168 Benchmark]: Boogie Preprocessor took 652.78 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 866.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:23,631 INFO L168 Benchmark]: RCFGBuilder took 8488.44 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: 539.4 MB). Peak memory consumption was 539.4 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:23,632 INFO L168 Benchmark]: TraceAbstraction took 213485.16 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 1.6 GB in the end (delta: 157.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-07-23 20:05:23,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2295.22 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 198.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 652.78 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 866.1 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8488.44 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: 539.4 MB). Peak memory consumption was 539.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213485.16 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 1.6 GB in the end (delta: 157.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 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 (13845states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (124 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 213.3s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 159.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2336 SDtfs, 10376 SDslu, 854 SDs, 0 SdLazy, 19356 SolverSat, 4815 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 109.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 580 GetRequests, 520 SyntacticMatches, 23 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13845occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 33.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.995499372781381 AbsIntWeakeningRatio, 0.10681399631675875 AbsIntAvgWeakeningVarsNumRemoved, 307.1915285451197 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 121 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 931 NumberOfCodeBlocks, 931 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 925 ConstructedInterpolants, 0 QuantifiedInterpolants, 1229088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 269/487 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/Problem18_label06_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-05-23-653.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label06_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-05-23-653.csv Completed graceful shutdown