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/Problem19_label22_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:38:13,947 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:38:13,954 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:38:13,976 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:38:13,976 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:38:13,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:38:13,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:38:13,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:38:13,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:38:13,983 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:38:13,984 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:38:13,984 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:38:13,985 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:38:13,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:38:13,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:38:13,988 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:38:13,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:38:13,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:38:13,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:38:13,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:38:13,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:38:13,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:38:14,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:38:14,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:38:14,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:38:14,002 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:38:14,003 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:38:14,003 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:38:14,004 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:38:14,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:38:14,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:38:14,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:38:14,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:38:14,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:38:14,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:38:14,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:38:14,009 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 12:38:14,026 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:38:14,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:38:14,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:38:14,027 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:38:14,027 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:38:14,028 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:38:14,028 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:38:14,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:38:14,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:38:14,028 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:38:14,028 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:38:14,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:38:14,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:38:14,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:38:14,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:38:14,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:38:14,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:38:14,030 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:38:14,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:38:14,031 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:38:14,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:38:14,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:38:14,031 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:38:14,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:38:14,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:38:14,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:38:14,033 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:38:14,033 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:38:14,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:38:14,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:38:14,033 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:38:14,034 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:38:14,034 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:38:14,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:38:14,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:38:14,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:38:14,128 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:38:14,129 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:38:14,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c [2018-07-24 12:38:14,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef26845/3ab32c5205d046d28cfa0d485af94883/FLAG0ddadf120 [2018-07-24 12:38:15,144 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:38:15,147 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c [2018-07-24 12:38:15,200 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef26845/3ab32c5205d046d28cfa0d485af94883/FLAG0ddadf120 [2018-07-24 12:38:15,216 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ef26845/3ab32c5205d046d28cfa0d485af94883 [2018-07-24 12:38:15,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:38:15,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:38:15,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:38:15,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:38:15,247 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:38:15,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:38:15" (1/1) ... [2018-07-24 12:38:15,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49276014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:15, skipping insertion in model container [2018-07-24 12:38:15,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:38:15" (1/1) ... [2018-07-24 12:38:15,692 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:38:17,347 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:38:17,364 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:38:18,590 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:38:19,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19 WrapperNode [2018-07-24 12:38:19,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:38:19,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:38:19,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:38:19,271 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:38:19,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:19,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:19,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:38:19,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:38:19,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:38:19,546 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:38:20,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:20,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:20,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:20,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:21,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:21,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:21,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (1/1) ... [2018-07-24 12:38:21,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:38:21,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:38:21,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:38:21,359 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:38:21,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (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 12:38:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:38:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:38:21,425 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 12:38:21,425 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 12:38:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:38:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:38:21,425 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_output5 [2018-07-24 12:38:21,426 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_output5 [2018-07-24 12:38:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:38:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:38:21,426 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 12:38:21,426 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 12:38:21,426 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 12:38:21,427 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 12:38:21,427 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_output6 [2018-07-24 12:38:21,427 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_output6 [2018-07-24 12:38:21,427 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 12:38:21,427 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 12:38:41,544 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:38:41,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:38:41 BoogieIcfgContainer [2018-07-24 12:38:41,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:38:41,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:38:41,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:38:41,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:38:41,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:38:15" (1/3) ... [2018-07-24 12:38:41,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a68d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:38:41, skipping insertion in model container [2018-07-24 12:38:41,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:19" (2/3) ... [2018-07-24 12:38:41,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a68d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:38:41, skipping insertion in model container [2018-07-24 12:38:41,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:38:41" (3/3) ... [2018-07-24 12:38:41,553 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label22_false-unreach-call.c [2018-07-24 12:38:41,561 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:38:41,571 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:38:41,638 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:38:41,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:38:41,639 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:38:41,639 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:38:41,639 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:38:41,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:38:41,640 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:38:41,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:38:41,640 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:38:41,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-24 12:38:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-24 12:38:41,699 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:38:41,700 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] [2018-07-24 12:38:41,700 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 12:38:41,706 INFO L82 PathProgramCache]: Analyzing trace with hash 382174814, now seen corresponding path program 1 times [2018-07-24 12:38:41,709 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:38:41,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:38:41,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:38:41,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:38:41,762 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:38:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:38:42,181 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:38:42,318 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 12:38:42,321 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:38:42,322 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:38:42,322 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:38:42,329 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:38:42,346 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:38:42,347 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:38:42,350 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-24 12:39:00,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:39:00,712 INFO L93 Difference]: Finished difference Result 5034 states and 9499 transitions. [2018-07-24 12:39:00,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:39:00,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-07-24 12:39:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:39:00,774 INFO L225 Difference]: With dead ends: 5034 [2018-07-24 12:39:00,775 INFO L226 Difference]: Without dead ends: 3254 [2018-07-24 12:39:00,793 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:39:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2018-07-24 12:39:00,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3207. [2018-07-24 12:39:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3207 states. [2018-07-24 12:39:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 5994 transitions. [2018-07-24 12:39:01,011 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 5994 transitions. Word has length 36 [2018-07-24 12:39:01,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:39:01,012 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 5994 transitions. [2018-07-24 12:39:01,012 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:39:01,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 5994 transitions. [2018-07-24 12:39:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 12:39:01,024 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:01,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:01,025 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 12:39:01,025 INFO L82 PathProgramCache]: Analyzing trace with hash -908228009, now seen corresponding path program 1 times [2018-07-24 12:39:01,025 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:01,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:01,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:01,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:01,029 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:01,410 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:39:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:39:01,812 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:39:01,812 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:39:01,813 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:01,815 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:39:01,815 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:39:01,815 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:39:01,816 INFO L87 Difference]: Start difference. First operand 3207 states and 5994 transitions. Second operand 6 states. [2018-07-24 12:39:33,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:39:33,140 INFO L93 Difference]: Finished difference Result 12119 states and 23174 transitions. [2018-07-24 12:39:33,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:39:33,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-07-24 12:39:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:39:33,192 INFO L225 Difference]: With dead ends: 12119 [2018-07-24 12:39:33,193 INFO L226 Difference]: Without dead ends: 8918 [2018-07-24 12:39:33,207 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 12:39:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8918 states. [2018-07-24 12:39:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8918 to 8850. [2018-07-24 12:39:33,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8850 states. [2018-07-24 12:39:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 14414 transitions. [2018-07-24 12:39:33,431 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 14414 transitions. Word has length 109 [2018-07-24 12:39:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:39:33,432 INFO L471 AbstractCegarLoop]: Abstraction has 8850 states and 14414 transitions. [2018-07-24 12:39:33,432 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:39:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 14414 transitions. [2018-07-24 12:39:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-24 12:39:33,437 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:33,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:33,438 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 12:39:33,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1711758956, now seen corresponding path program 1 times [2018-07-24 12:39:33,439 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:33,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:33,440 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:33,775 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:39:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:39:33,891 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:39:33,891 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:39:33,891 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:33,892 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:39:33,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:39:33,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:39:33,892 INFO L87 Difference]: Start difference. First operand 8850 states and 14414 transitions. Second operand 6 states. [2018-07-24 12:39:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:39:51,526 INFO L93 Difference]: Finished difference Result 20763 states and 34467 transitions. [2018-07-24 12:39:51,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:39:51,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-07-24 12:39:51,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:39:51,602 INFO L225 Difference]: With dead ends: 20763 [2018-07-24 12:39:51,603 INFO L226 Difference]: Without dead ends: 11919 [2018-07-24 12:39:51,628 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:39:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11919 states. [2018-07-24 12:39:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11919 to 11839. [2018-07-24 12:39:51,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11839 states. [2018-07-24 12:39:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11839 states to 11839 states and 18734 transitions. [2018-07-24 12:39:51,919 INFO L78 Accepts]: Start accepts. Automaton has 11839 states and 18734 transitions. Word has length 123 [2018-07-24 12:39:51,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:39:51,919 INFO L471 AbstractCegarLoop]: Abstraction has 11839 states and 18734 transitions. [2018-07-24 12:39:51,920 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:39:51,920 INFO L276 IsEmpty]: Start isEmpty. Operand 11839 states and 18734 transitions. [2018-07-24 12:39:51,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-24 12:39:51,927 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:51,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:51,928 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 12:39:51,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1697749888, now seen corresponding path program 1 times [2018-07-24 12:39:51,928 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:51,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:51,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:51,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:51,930 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:52,230 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:39:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:39:52,541 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:39:52,541 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:39:52,541 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:52,542 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:39:52,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:39:52,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:39:52,542 INFO L87 Difference]: Start difference. First operand 11839 states and 18734 transitions. Second operand 6 states. [2018-07-24 12:40:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:40:14,406 INFO L93 Difference]: Finished difference Result 29521 states and 47432 transitions. [2018-07-24 12:40:14,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:40:14,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-07-24 12:40:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:40:14,459 INFO L225 Difference]: With dead ends: 29521 [2018-07-24 12:40:14,459 INFO L226 Difference]: Without dead ends: 17688 [2018-07-24 12:40:14,499 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 12:40:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17688 states. [2018-07-24 12:40:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17688 to 17609. [2018-07-24 12:40:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17609 states. [2018-07-24 12:40:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17609 states to 17609 states and 25608 transitions. [2018-07-24 12:40:14,837 INFO L78 Accepts]: Start accepts. Automaton has 17609 states and 25608 transitions. Word has length 124 [2018-07-24 12:40:14,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:40:14,838 INFO L471 AbstractCegarLoop]: Abstraction has 17609 states and 25608 transitions. [2018-07-24 12:40:14,838 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:40:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 17609 states and 25608 transitions. [2018-07-24 12:40:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-24 12:40:14,841 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:40:14,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:14,842 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 12:40:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash 729807648, now seen corresponding path program 1 times [2018-07-24 12:40:14,842 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:40:14,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:40:14,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:40:14,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:40:14,843 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:40:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:40:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:40:15,177 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:40:15,177 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:40:15,177 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:40:15,177 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:40:15,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:40:15,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:40:15,178 INFO L87 Difference]: Start difference. First operand 17609 states and 25608 transitions. Second operand 6 states. [2018-07-24 12:41:01,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:41:01,648 INFO L93 Difference]: Finished difference Result 68674 states and 106390 transitions. [2018-07-24 12:41:01,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:41:01,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-07-24 12:41:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:41:01,835 INFO L225 Difference]: With dead ends: 68674 [2018-07-24 12:41:01,836 INFO L226 Difference]: Without dead ends: 51071 [2018-07-24 12:41:01,919 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:41:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51071 states. [2018-07-24 12:41:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51071 to 50981. [2018-07-24 12:41:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50981 states. [2018-07-24 12:41:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50981 states to 50981 states and 69103 transitions. [2018-07-24 12:41:02,999 INFO L78 Accepts]: Start accepts. Automaton has 50981 states and 69103 transitions. Word has length 164 [2018-07-24 12:41:03,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:41:03,000 INFO L471 AbstractCegarLoop]: Abstraction has 50981 states and 69103 transitions. [2018-07-24 12:41:03,000 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:41:03,000 INFO L276 IsEmpty]: Start isEmpty. Operand 50981 states and 69103 transitions. [2018-07-24 12:41:03,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-24 12:41:03,010 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:41:03,010 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:41:03,010 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 12:41:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash -333645276, now seen corresponding path program 1 times [2018-07-24 12:41:03,011 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:41:03,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:03,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:03,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:03,012 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:41:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:41:03,345 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:41:03,346 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 12:41:03,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:03,363 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:41:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:03,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:41:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-07-24 12:41:03,708 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:41:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:41:04,422 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:41:04,422 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 12:41:04,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:41:04,423 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:41:04,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:41:04,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:41:04,424 INFO L87 Difference]: Start difference. First operand 50981 states and 69103 transitions. Second operand 5 states. [2018-07-24 12:41:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:41:31,927 INFO L93 Difference]: Finished difference Result 154299 states and 219906 transitions. [2018-07-24 12:41:31,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:41:31,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2018-07-24 12:41:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:41:32,438 INFO L225 Difference]: With dead ends: 154299 [2018-07-24 12:41:32,438 INFO L226 Difference]: Without dead ends: 103324 [2018-07-24 12:41:32,648 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:41:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103324 states. [2018-07-24 12:41:35,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103324 to 102716. [2018-07-24 12:41:35,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102716 states. [2018-07-24 12:41:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102716 states to 102716 states and 139335 transitions. [2018-07-24 12:41:35,482 INFO L78 Accepts]: Start accepts. Automaton has 102716 states and 139335 transitions. Word has length 191 [2018-07-24 12:41:35,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:41:35,482 INFO L471 AbstractCegarLoop]: Abstraction has 102716 states and 139335 transitions. [2018-07-24 12:41:35,483 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:41:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 102716 states and 139335 transitions. [2018-07-24 12:41:35,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-24 12:41:35,506 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:41:35,506 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:41:35,506 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 12:41:35,507 INFO L82 PathProgramCache]: Analyzing trace with hash -2061133070, now seen corresponding path program 1 times [2018-07-24 12:41:35,507 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:41:35,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:35,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:35,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:35,508 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:41:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 87 proven. 162 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 12:41:35,924 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:41:35,924 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 12:41:35,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:35,940 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:41:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:36,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:41:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-07-24 12:41:36,294 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:41:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-07-24 12:41:36,565 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:41:36,566 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 3] total 7 [2018-07-24 12:41:36,566 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:41:36,566 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:41:36,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:41:36,567 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:41:36,567 INFO L87 Difference]: Start difference. First operand 102716 states and 139335 transitions. Second operand 3 states. [2018-07-24 12:41:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:41:51,935 INFO L93 Difference]: Finished difference Result 256744 states and 361915 transitions. [2018-07-24 12:41:51,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:41:51,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2018-07-24 12:41:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:41:52,507 INFO L225 Difference]: With dead ends: 256744 [2018-07-24 12:41:52,507 INFO L226 Difference]: Without dead ends: 154034 [2018-07-24 12:41:52,735 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:41:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154034 states. [2018-07-24 12:41:56,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154034 to 153861. [2018-07-24 12:41:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153861 states. [2018-07-24 12:41:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153861 states to 153861 states and 210739 transitions. [2018-07-24 12:41:56,368 INFO L78 Accepts]: Start accepts. Automaton has 153861 states and 210739 transitions. Word has length 338 [2018-07-24 12:41:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:41:56,369 INFO L471 AbstractCegarLoop]: Abstraction has 153861 states and 210739 transitions. [2018-07-24 12:41:56,369 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:41:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 153861 states and 210739 transitions. [2018-07-24 12:41:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-24 12:41:56,409 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:41:56,409 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:41:56,410 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 12:41:56,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1562576268, now seen corresponding path program 1 times [2018-07-24 12:41:56,410 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:41:56,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:56,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:56,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:56,411 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:41:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 87 proven. 162 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 12:41:56,771 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:41:56,771 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:41:56,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:56,779 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:41:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:56,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:41:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-07-24 12:41:57,048 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:41:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 87 proven. 162 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 12:41:57,497 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:41:57,498 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 12:41:57,498 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:41:57,499 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:41:57,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:41:57,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:41:57,499 INFO L87 Difference]: Start difference. First operand 153861 states and 210739 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 12:42:06,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:42:06,313 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:42:06,318 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:42:06,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:42:06 BoogieIcfgContainer [2018-07-24 12:42:06,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:42:06,319 INFO L168 Benchmark]: Toolchain (without parser) took 231088.31 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-24 12:42:06,321 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 12:42:06,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4032.26 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 190.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -100.8 MB). Peak memory consumption was 487.6 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:06,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 274.37 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:06,323 INFO L168 Benchmark]: Boogie Preprocessor took 1812.46 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 855.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -857.4 MB). Peak memory consumption was 128.4 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:06,324 INFO L168 Benchmark]: RCFGBuilder took 20186.43 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 246.9 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 274.4 MB). Peak memory consumption was 998.8 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:06,325 INFO L168 Benchmark]: TraceAbstraction took 204773.32 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 828.9 MB). Free memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: -174.4 MB). Peak memory consumption was 654.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:06,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 4032.26 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 190.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -100.8 MB). Peak memory consumption was 487.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 274.37 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1812.46 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 855.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -857.4 MB). Peak memory consumption was 128.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20186.43 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 246.9 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 274.4 MB). Peak memory consumption was 998.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204773.32 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 828.9 MB). Free memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: -174.4 MB). Peak memory consumption was 654.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 103). Cancelled while BasicCegarLoop was constructing difference of abstraction (153861states) and interpolant automaton (currently 8 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (104381 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 204.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 189.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5046 SDtfs, 43054 SDslu, 4275 SDs, 0 SdLazy, 65251 SolverSat, 18794 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 163.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1799 GetRequests, 1742 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153861occurred in iteration=7, 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: 8.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 1145 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2290 NumberOfCodeBlocks, 2290 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3143 ConstructedInterpolants, 0 QuantifiedInterpolants, 1782694 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1593 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 1859/2483 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/Problem19_label22_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-42-06-346.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label22_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-42-06-346.csv Completed graceful shutdown