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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:53:47,254 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:53:47,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:53:47,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:53:47,269 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:53:47,270 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:53:47,272 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:53:47,275 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:53:47,277 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:53:47,278 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:53:47,286 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:53:47,286 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:53:47,290 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:53:47,291 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:53:47,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:53:47,294 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:53:47,295 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:53:47,299 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:53:47,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:53:47,306 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:53:47,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:53:47,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:53:47,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:53:47,314 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:53:47,314 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:53:47,318 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:53:47,319 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:53:47,320 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:53:47,321 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:53:47,322 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:53:47,322 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:53:47,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:53:47,325 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:53:47,326 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:53:47,326 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:53:47,327 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:53:47,327 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 11:53:47,349 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:53:47,349 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:53:47,350 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:53:47,350 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:53:47,350 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:53:47,351 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:53:47,351 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:53:47,351 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:53:47,351 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:53:47,351 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:53:47,352 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:53:47,352 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:53:47,353 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:53:47,353 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:53:47,353 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:53:47,353 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:53:47,353 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:53:47,354 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:53:47,354 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:53:47,354 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:53:47,354 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:53:47,354 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:53:47,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:53:47,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:53:47,355 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:53:47,355 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:53:47,355 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:53:47,356 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:53:47,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:53:47,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:53:47,356 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:53:47,356 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:53:47,357 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:53:47,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:53:47,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:53:47,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:53:47,459 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:53:47,460 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:53:47,461 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c [2018-07-24 11:53:47,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb273c480/78d6699369a24cb19518a3936151582a/FLAG124968ea4 [2018-07-24 11:53:48,303 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:53:48,304 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label52_false-unreach-call.c [2018-07-24 11:53:48,335 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb273c480/78d6699369a24cb19518a3936151582a/FLAG124968ea4 [2018-07-24 11:53:48,351 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb273c480/78d6699369a24cb19518a3936151582a [2018-07-24 11:53:48,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:53:48,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:53:48,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:53:48,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:53:48,372 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:53:48,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:53:48" (1/1) ... [2018-07-24 11:53:48,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d9fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:48, skipping insertion in model container [2018-07-24 11:53:48,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:53:48" (1/1) ... [2018-07-24 11:53:48,713 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:53:49,728 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:53:49,745 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:53:50,394 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:53:50,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50 WrapperNode [2018-07-24 11:53:50,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:53:50,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:53:50,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:53:50,665 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:53:50,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:50,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:50,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:53:50,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:53:50,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:53:50,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:53:51,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (1/1) ... [2018-07-24 11:53:51,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:53:51,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:53:51,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:53:51,985 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:53:51,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (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 [2018-07-24 11:53:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:53:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:53:52,056 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_output4 [2018-07-24 11:53:52,056 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_output4 [2018-07-24 11:53:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:53:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:53:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:53:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:53:52,057 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 [2018-07-24 11:53:52,058 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 [2018-07-24 11:53:52,058 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 [2018-07-24 11:53:52,058 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 [2018-07-24 11:53:52,058 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 [2018-07-24 11:53:52,059 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 [2018-07-24 11:54:01,419 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:54:01,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:54:01 BoogieIcfgContainer [2018-07-24 11:54:01,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:54:01,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:54:01,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:54:01,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:54:01,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:53:48" (1/3) ... [2018-07-24 11:54:01,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60174587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:54:01, skipping insertion in model container [2018-07-24 11:54:01,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:53:50" (2/3) ... [2018-07-24 11:54:01,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60174587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:54:01, skipping insertion in model container [2018-07-24 11:54:01,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:54:01" (3/3) ... [2018-07-24 11:54:01,429 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label52_false-unreach-call.c [2018-07-24 11:54:01,438 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:54:01,448 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:54:01,513 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:54:01,514 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:54:01,514 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:54:01,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:54:01,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:54:01,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:54:01,515 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:54:01,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:54:01,515 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:54:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 11:54:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-24 11:54:01,576 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:01,577 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, 1, 1, 1, 1, 1] [2018-07-24 11:54:01,577 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]=== [2018-07-24 11:54:01,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1765390123, now seen corresponding path program 1 times [2018-07-24 11:54:01,585 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:01,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:01,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:01,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:01,632 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:02,033 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:54:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:54:02,113 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:54:02,114 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:54:02,114 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:02,120 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:54:02,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:54:02,138 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:54:02,141 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-24 11:54:11,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:11,189 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-24 11:54:11,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:54:11,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-07-24 11:54:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:11,229 INFO L225 Difference]: With dead ends: 2446 [2018-07-24 11:54:11,229 INFO L226 Difference]: Without dead ends: 1604 [2018-07-24 11:54:11,243 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:54:11,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-24 11:54:11,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-24 11:54:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 11:54:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-07-24 11:54:11,416 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 37 [2018-07-24 11:54:11,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:11,417 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-07-24 11:54:11,417 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:54:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-07-24 11:54:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-24 11:54:11,424 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:11,425 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:54:11,425 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]=== [2018-07-24 11:54:11,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1556189076, now seen corresponding path program 1 times [2018-07-24 11:54:11,426 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:11,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:11,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:11,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:11,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:11,801 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:54:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:54:11,936 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:54:11,937 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:54:11,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:11,940 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:54:11,940 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:54:11,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:54:11,942 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 6 states. [2018-07-24 11:54:27,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:27,930 INFO L93 Difference]: Finished difference Result 6330 states and 12128 transitions. [2018-07-24 11:54:27,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:54:27,931 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-07-24 11:54:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:27,964 INFO L225 Difference]: With dead ends: 6330 [2018-07-24 11:54:27,964 INFO L226 Difference]: Without dead ends: 4732 [2018-07-24 11:54:27,974 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:54:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2018-07-24 11:54:28,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4700. [2018-07-24 11:54:28,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4700 states. [2018-07-24 11:54:28,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 7674 transitions. [2018-07-24 11:54:28,128 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 7674 transitions. Word has length 115 [2018-07-24 11:54:28,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:28,129 INFO L471 AbstractCegarLoop]: Abstraction has 4700 states and 7674 transitions. [2018-07-24 11:54:28,129 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:54:28,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 7674 transitions. [2018-07-24 11:54:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-24 11:54:28,134 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:28,134 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, 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] [2018-07-24 11:54:28,135 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]=== [2018-07-24 11:54:28,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1568604905, now seen corresponding path program 1 times [2018-07-24 11:54:28,135 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:28,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:28,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:28,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:28,137 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:54:28,339 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:54:28,339 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:54:28,339 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:28,340 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:54:28,340 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:54:28,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:54:28,341 INFO L87 Difference]: Start difference. First operand 4700 states and 7674 transitions. Second operand 6 states. [2018-07-24 11:54:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:36,997 INFO L93 Difference]: Finished difference Result 12678 states and 21674 transitions. [2018-07-24 11:54:36,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:54:36,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-07-24 11:54:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:37,045 INFO L225 Difference]: With dead ends: 12678 [2018-07-24 11:54:37,045 INFO L226 Difference]: Without dead ends: 7984 [2018-07-24 11:54:37,059 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 [2018-07-24 11:54:37,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7984 states. [2018-07-24 11:54:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7984 to 7899. [2018-07-24 11:54:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7899 states. [2018-07-24 11:54:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7899 states to 7899 states and 13047 transitions. [2018-07-24 11:54:37,286 INFO L78 Accepts]: Start accepts. Automaton has 7899 states and 13047 transitions. Word has length 118 [2018-07-24 11:54:37,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:37,287 INFO L471 AbstractCegarLoop]: Abstraction has 7899 states and 13047 transitions. [2018-07-24 11:54:37,287 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:54:37,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7899 states and 13047 transitions. [2018-07-24 11:54:37,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-24 11:54:37,289 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:37,290 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, 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] [2018-07-24 11:54:37,290 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]=== [2018-07-24 11:54:37,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1570329621, now seen corresponding path program 1 times [2018-07-24 11:54:37,290 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:37,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:37,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:37,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:37,292 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:37,587 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:54:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:54:37,887 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:54:37,887 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:54:37,887 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:37,887 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:54:37,888 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:54:37,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:54:37,888 INFO L87 Difference]: Start difference. First operand 7899 states and 13047 transitions. Second operand 6 states. [2018-07-24 11:54:48,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:48,437 INFO L93 Difference]: Finished difference Result 22147 states and 36762 transitions. [2018-07-24 11:54:48,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:54:48,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-07-24 11:54:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:48,512 INFO L225 Difference]: With dead ends: 22147 [2018-07-24 11:54:48,512 INFO L226 Difference]: Without dead ends: 14254 [2018-07-24 11:54:48,550 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:54:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14254 states. [2018-07-24 11:54:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14254 to 14172. [2018-07-24 11:54:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14172 states. [2018-07-24 11:54:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14172 states to 14172 states and 21143 transitions. [2018-07-24 11:54:48,854 INFO L78 Accepts]: Start accepts. Automaton has 14172 states and 21143 transitions. Word has length 124 [2018-07-24 11:54:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:48,855 INFO L471 AbstractCegarLoop]: Abstraction has 14172 states and 21143 transitions. [2018-07-24 11:54:48,855 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:54:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 14172 states and 21143 transitions. [2018-07-24 11:54:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-24 11:54:48,858 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:48,858 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, 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] [2018-07-24 11:54:48,858 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]=== [2018-07-24 11:54:48,859 INFO L82 PathProgramCache]: Analyzing trace with hash -688538560, now seen corresponding path program 1 times [2018-07-24 11:54:48,859 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:48,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:48,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:48,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:48,860 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:49,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:54:49,195 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:54:49,195 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:54:49,195 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:49,196 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:54:49,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:54:49,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:54:49,197 INFO L87 Difference]: Start difference. First operand 14172 states and 21143 transitions. Second operand 5 states. [2018-07-24 11:55:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:10,190 INFO L93 Difference]: Finished difference Result 48150 states and 73377 transitions. [2018-07-24 11:55:10,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:55:10,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-07-24 11:55:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:10,343 INFO L225 Difference]: With dead ends: 48150 [2018-07-24 11:55:10,344 INFO L226 Difference]: Without dead ends: 33984 [2018-07-24 11:55:10,409 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:55:10,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33984 states. [2018-07-24 11:55:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33984 to 33712. [2018-07-24 11:55:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33712 states. [2018-07-24 11:55:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33712 states to 33712 states and 46062 transitions. [2018-07-24 11:55:11,183 INFO L78 Accepts]: Start accepts. Automaton has 33712 states and 46062 transitions. Word has length 141 [2018-07-24 11:55:11,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:11,184 INFO L471 AbstractCegarLoop]: Abstraction has 33712 states and 46062 transitions. [2018-07-24 11:55:11,184 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:55:11,184 INFO L276 IsEmpty]: Start isEmpty. Operand 33712 states and 46062 transitions. [2018-07-24 11:55:11,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-24 11:55:11,188 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:11,191 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, 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] [2018-07-24 11:55:11,192 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]=== [2018-07-24 11:55:11,192 INFO L82 PathProgramCache]: Analyzing trace with hash -505453695, now seen corresponding path program 1 times [2018-07-24 11:55:11,192 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:11,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:11,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:11,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:11,193 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:11,517 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:55:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:11,952 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:55:11,952 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:55:11,952 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:55:11,953 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:55:11,953 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:55:11,953 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:55:11,954 INFO L87 Difference]: Start difference. First operand 33712 states and 46062 transitions. Second operand 6 states. [2018-07-24 11:55:23,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:23,143 INFO L93 Difference]: Finished difference Result 84846 states and 120434 transitions. [2018-07-24 11:55:23,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:55:23,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-07-24 11:55:23,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:23,639 INFO L225 Difference]: With dead ends: 84846 [2018-07-24 11:55:23,639 INFO L226 Difference]: Without dead ends: 51140 [2018-07-24 11:55:23,710 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:55:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51140 states. [2018-07-24 11:55:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51140 to 50967. [2018-07-24 11:55:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50967 states. [2018-07-24 11:55:24,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50967 states to 50967 states and 66307 transitions. [2018-07-24 11:55:24,575 INFO L78 Accepts]: Start accepts. Automaton has 50967 states and 66307 transitions. Word has length 162 [2018-07-24 11:55:24,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:24,575 INFO L471 AbstractCegarLoop]: Abstraction has 50967 states and 66307 transitions. [2018-07-24 11:55:24,575 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:55:24,575 INFO L276 IsEmpty]: Start isEmpty. Operand 50967 states and 66307 transitions. [2018-07-24 11:55:24,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-24 11:55:24,592 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:24,593 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:24,593 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:24,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1404006180, now seen corresponding path program 1 times [2018-07-24 11:55:24,593 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:24,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:24,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:24,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:24,594 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 60 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:55:24,882 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:24,883 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:24,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:24,892 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:25,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-07-24 11:55:25,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 60 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:55:25,941 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:55:25,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 11:55:25,942 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:55:25,942 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:55:25,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:55:25,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:55:25,943 INFO L87 Difference]: Start difference. First operand 50967 states and 66307 transitions. Second operand 5 states. [2018-07-24 11:55:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:38,801 INFO L93 Difference]: Finished difference Result 149575 states and 202581 transitions. [2018-07-24 11:55:38,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:55:38,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-07-24 11:55:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:39,207 INFO L225 Difference]: With dead ends: 149575 [2018-07-24 11:55:39,208 INFO L226 Difference]: Without dead ends: 98614 [2018-07-24 11:55:39,337 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:55:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98614 states. [2018-07-24 11:55:41,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98614 to 96139. [2018-07-24 11:55:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96139 states. [2018-07-24 11:55:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96139 states to 96139 states and 123017 transitions. [2018-07-24 11:55:41,688 INFO L78 Accepts]: Start accepts. Automaton has 96139 states and 123017 transitions. Word has length 210 [2018-07-24 11:55:41,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:41,689 INFO L471 AbstractCegarLoop]: Abstraction has 96139 states and 123017 transitions. [2018-07-24 11:55:41,689 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:55:41,689 INFO L276 IsEmpty]: Start isEmpty. Operand 96139 states and 123017 transitions. [2018-07-24 11:55:41,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-24 11:55:41,695 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:41,696 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:41,696 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:41,696 INFO L82 PathProgramCache]: Analyzing trace with hash -2019585660, now seen corresponding path program 1 times [2018-07-24 11:55:41,697 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:41,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:41,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:41,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:41,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:41,983 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:41,983 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:41,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:41,991 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:42,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:42,962 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:43,249 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:43,249 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:55:43,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:43,266 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:43,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:43,520 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:43,520 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:43,990 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:55:43,991 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:55:43,991 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:55:43,993 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:55:43,993 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:55:43,993 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:55:43,993 INFO L87 Difference]: Start difference. First operand 96139 states and 123017 transitions. Second operand 9 states. [2018-07-24 11:56:03,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:56:03,294 INFO L93 Difference]: Finished difference Result 216474 states and 310683 transitions. [2018-07-24 11:56:03,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 11:56:03,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 238 [2018-07-24 11:56:03,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:56:03,814 INFO L225 Difference]: With dead ends: 216474 [2018-07-24 11:56:03,814 INFO L226 Difference]: Without dead ends: 100734 [2018-07-24 11:56:04,085 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 955 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-07-24 11:56:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100734 states. [2018-07-24 11:56:06,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100734 to 99178. [2018-07-24 11:56:06,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99178 states. [2018-07-24 11:56:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99178 states to 99178 states and 132470 transitions. [2018-07-24 11:56:07,136 INFO L78 Accepts]: Start accepts. Automaton has 99178 states and 132470 transitions. Word has length 238 [2018-07-24 11:56:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:56:07,137 INFO L471 AbstractCegarLoop]: Abstraction has 99178 states and 132470 transitions. [2018-07-24 11:56:07,137 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:56:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 99178 states and 132470 transitions. [2018-07-24 11:56:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-07-24 11:56:07,148 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:56:07,148 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:56:07,149 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:56:07,149 INFO L82 PathProgramCache]: Analyzing trace with hash 44445857, now seen corresponding path program 1 times [2018-07-24 11:56:07,149 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:56:07,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:07,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:07,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:07,150 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:56:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:07,839 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:56:07,839 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:56:07,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:07,858 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:56:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:07,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:56:08,240 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:08,241 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:56:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:08,399 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:56:08,400 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:56:08,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:08,421 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:56:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:08,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:56:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:08,718 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:56:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:08,848 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:56:08,849 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:56:08,849 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:56:08,850 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:56:08,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:56:08,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:56:08,851 INFO L87 Difference]: Start difference. First operand 99178 states and 132470 transitions. Second operand 9 states. [2018-07-24 11:56:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:56:29,300 INFO L93 Difference]: Finished difference Result 249724 states and 433416 transitions. [2018-07-24 11:56:29,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 11:56:29,300 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 299 [2018-07-24 11:56:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:56:30,107 INFO L225 Difference]: With dead ends: 249724 [2018-07-24 11:56:30,107 INFO L226 Difference]: Without dead ends: 150557 [2018-07-24 11:56:30,448 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1212 GetRequests, 1195 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:56:30,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150557 states. [2018-07-24 11:56:34,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150557 to 149473. [2018-07-24 11:56:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149473 states. [2018-07-24 11:56:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149473 states to 149473 states and 236139 transitions. [2018-07-24 11:56:35,041 INFO L78 Accepts]: Start accepts. Automaton has 149473 states and 236139 transitions. Word has length 299 [2018-07-24 11:56:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:56:35,042 INFO L471 AbstractCegarLoop]: Abstraction has 149473 states and 236139 transitions. [2018-07-24 11:56:35,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:56:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 149473 states and 236139 transitions. [2018-07-24 11:56:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-07-24 11:56:35,062 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:56:35,062 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:56:35,062 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:56:35,063 INFO L82 PathProgramCache]: Analyzing trace with hash 55569182, now seen corresponding path program 1 times [2018-07-24 11:56:35,063 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:56:35,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:35,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:35,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:35,064 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:56:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:35,365 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:56:35,365 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:56:35,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:35,372 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:56:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:35,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:56:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:36,855 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:56:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:37,037 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:56:37,037 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:56:37,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:37,054 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:56:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:37,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:56:37,398 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:37,398 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:56:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:37,662 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:56:37,662 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-07-24 11:56:37,662 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:56:37,663 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:56:37,663 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:56:37,664 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-07-24 11:56:37,664 INFO L87 Difference]: Start difference. First operand 149473 states and 236139 transitions. Second operand 9 states. [2018-07-24 11:57:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:19,611 INFO L93 Difference]: Finished difference Result 383561 states and 911349 transitions. [2018-07-24 11:57:19,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-24 11:57:19,611 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 302 [2018-07-24 11:57:19,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:21,919 INFO L225 Difference]: With dead ends: 383561 [2018-07-24 11:57:21,919 INFO L226 Difference]: Without dead ends: 208855 [2018-07-24 11:57:22,616 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1285 GetRequests, 1226 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=661, Invalid=2879, Unknown=0, NotChecked=0, Total=3540 [2018-07-24 11:57:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208855 states. [2018-07-24 11:57:28,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208855 to 202610. [2018-07-24 11:57:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202610 states. [2018-07-24 11:57:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202610 states to 202610 states and 341519 transitions. [2018-07-24 11:57:30,400 INFO L78 Accepts]: Start accepts. Automaton has 202610 states and 341519 transitions. Word has length 302 [2018-07-24 11:57:30,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:30,401 INFO L471 AbstractCegarLoop]: Abstraction has 202610 states and 341519 transitions. [2018-07-24 11:57:30,401 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:57:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 202610 states and 341519 transitions. [2018-07-24 11:57:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-07-24 11:57:30,413 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:30,413 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:57:30,413 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:57:30,414 INFO L82 PathProgramCache]: Analyzing trace with hash 382683369, now seen corresponding path program 1 times [2018-07-24 11:57:30,414 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:30,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:30,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:30,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:30,415 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 54 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:57:30,730 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:57:30,730 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:57:30,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:30,738 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:57:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:30,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:57:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-24 11:57:31,067 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:57:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-24 11:57:31,668 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 11:57:31,668 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-07-24 11:57:31,669 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:31,670 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:57:31,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:57:31,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:57:31,673 INFO L87 Difference]: Start difference. First operand 202610 states and 341519 transitions. Second operand 3 states. Received shutdown request... [2018-07-24 11:57:34,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:57:34,294 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:57:34,300 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:57:34,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:57:34 BoogieIcfgContainer [2018-07-24 11:57:34,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:57:34,302 INFO L168 Benchmark]: Toolchain (without parser) took 225939.06 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -21.5 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-07-24 11:57:34,303 INFO L168 Benchmark]: CDTParser took 0.48 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. [2018-07-24 11:57:34,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2299.22 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:57:34,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 269.94 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:57:34,305 INFO L168 Benchmark]: Boogie Preprocessor took 1049.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 911.2 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 11:57:34,306 INFO L168 Benchmark]: RCFGBuilder took 9435.03 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 190.3 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -176.5 MB). Peak memory consumption was 770.8 MB. Max. memory is 7.1 GB. [2018-07-24 11:57:34,307 INFO L168 Benchmark]: TraceAbstraction took 212879.95 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.5 GB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-07-24 11:57:34,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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 2299.22 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 269.94 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1049.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 911.2 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9435.03 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 190.3 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -176.5 MB). Peak memory consumption was 770.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212879.95 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.5 GB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (202610states) and interpolant automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (20583 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 212.7s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 180.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2145 SDtfs, 38309 SDslu, 2599 SDs, 0 SdLazy, 81704 SolverSat, 17826 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 135.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4571 GetRequests, 4412 SyntacticMatches, 13 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1184 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202610occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 20.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 12004 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 4240 NumberOfCodeBlocks, 4240 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6404 ConstructedInterpolants, 0 QuantifiedInterpolants, 4772908 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3890 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 27 InterpolantComputations, 9 PerfectInterpolantSequences, 3242/3556 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/Problem12_label52_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-57-34-326.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label52_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-57-34-326.csv Completed graceful shutdown