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_label13_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:48:57,989 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:48:57,992 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:48:58,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:48:58,005 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:48:58,006 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:48:58,009 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:48:58,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:48:58,013 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:48:58,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:48:58,018 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:48:58,019 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:48:58,020 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:48:58,021 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:48:58,026 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:48:58,030 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:48:58,031 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:48:58,036 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:48:58,043 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:48:58,045 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:48:58,046 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:48:58,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:48:58,053 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:48:58,053 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:48:58,054 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:48:58,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:48:58,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:48:58,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:48:58,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:48:58,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:48:58,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:48:58,066 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:48:58,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:48:58,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:48:58,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:48:58,070 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:48:58,070 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 11:48:58,089 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:48:58,089 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:48:58,090 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:48:58,091 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:48:58,091 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:48:58,091 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:48:58,092 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:48:58,092 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:48:58,092 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:48:58,092 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:48:58,092 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:48:58,093 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:48:58,094 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:48:58,094 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:48:58,094 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:48:58,094 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:48:58,096 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:48:58,096 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:48:58,096 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:48:58,097 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:48:58,097 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:48:58,097 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:48:58,098 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:48:58,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:48:58,098 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:48:58,098 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:48:58,099 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:48:58,099 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:48:58,099 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:48:58,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:48:58,099 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:48:58,099 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:48:58,100 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:48:58,153 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:48:58,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:48:58,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:48:58,179 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:48:58,179 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:48:58,180 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label13_false-unreach-call.c [2018-07-24 11:48:58,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f6956be/3fffe3eb7b5a4bb8a3c02255478d19fa/FLAG25117dffe [2018-07-24 11:48:58,966 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:48:58,967 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label13_false-unreach-call.c [2018-07-24 11:48:59,004 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f6956be/3fffe3eb7b5a4bb8a3c02255478d19fa/FLAG25117dffe [2018-07-24 11:48:59,028 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f6956be/3fffe3eb7b5a4bb8a3c02255478d19fa [2018-07-24 11:48:59,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:48:59,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:48:59,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:48:59,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:48:59,056 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:48:59,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:48:59" (1/1) ... [2018-07-24 11:48:59,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3036c7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:48:59, skipping insertion in model container [2018-07-24 11:48:59,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:48:59" (1/1) ... [2018-07-24 11:48:59,424 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:49:00,420 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:49:00,440 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:49:01,265 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:49:01,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01 WrapperNode [2018-07-24 11:49:01,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:49:01,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:49:01,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:49:01,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:49:01,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:01,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:01,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:49:01,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:49:01,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:49:01,740 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:49:02,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:02,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:49:02,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:49:02,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:49:02,737 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:49:02,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (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 11:49:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:49:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:49:02,822 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 11:49:02,822 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 11:49:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:49:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:49:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:49:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:49:02,824 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 11:49:02,824 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 11:49:02,824 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 11:49:02,826 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 11:49:02,826 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 11:49:02,827 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 11:49:12,086 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:49:12,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:49:12 BoogieIcfgContainer [2018-07-24 11:49:12,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:49:12,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:49:12,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:49:12,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:49:12,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:48:59" (1/3) ... [2018-07-24 11:49:12,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a7c3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:49:12, skipping insertion in model container [2018-07-24 11:49:12,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01" (2/3) ... [2018-07-24 11:49:12,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a7c3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:49:12, skipping insertion in model container [2018-07-24 11:49:12,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:49:12" (3/3) ... [2018-07-24 11:49:12,096 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label13_false-unreach-call.c [2018-07-24 11:49:12,106 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:49:12,126 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:49:12,189 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:49:12,190 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:49:12,190 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:49:12,190 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:49:12,190 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:49:12,190 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:49:12,191 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:49:12,191 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:49:12,191 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:49:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 11:49:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-24 11:49:12,410 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:12,411 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] [2018-07-24 11:49:12,412 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 11:49:12,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1490898941, now seen corresponding path program 1 times [2018-07-24 11:49:12,431 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:12,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:12,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:12,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:12,480 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:12,935 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:49:13,040 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 11:49:13,043 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:13,043 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:49:13,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:13,050 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:49:13,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:49:13,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:49:13,070 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-24 11:49:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:21,431 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-24 11:49:21,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:49:21,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-07-24 11:49:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:21,488 INFO L225 Difference]: With dead ends: 2446 [2018-07-24 11:49:21,489 INFO L226 Difference]: Without dead ends: 1604 [2018-07-24 11:49:21,505 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:49:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-24 11:49:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-24 11:49:21,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 11:49:21,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-07-24 11:49:21,724 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 35 [2018-07-24 11:49:21,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:21,725 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-07-24 11:49:21,725 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:49:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-07-24 11:49:21,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 11:49:21,735 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:21,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:21,737 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 11:49:21,737 INFO L82 PathProgramCache]: Analyzing trace with hash 573734748, now seen corresponding path program 1 times [2018-07-24 11:49:21,737 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:21,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:21,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:21,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:21,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:22,100 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:22,100 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:49:22,100 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:22,103 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:49:22,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:49:22,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:49:22,104 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-07-24 11:49:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:33,629 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-07-24 11:49:33,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:49:33,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2018-07-24 11:49:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:33,664 INFO L225 Difference]: With dead ends: 4818 [2018-07-24 11:49:33,664 INFO L226 Difference]: Without dead ends: 3220 [2018-07-24 11:49:33,670 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:49:33,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-07-24 11:49:33,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-07-24 11:49:33,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-07-24 11:49:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-07-24 11:49:33,783 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 109 [2018-07-24 11:49:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:33,784 INFO L471 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-07-24 11:49:33,785 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:49:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-07-24 11:49:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-24 11:49:33,796 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:33,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:33,796 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 11:49:33,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1842690627, now seen corresponding path program 1 times [2018-07-24 11:49:33,797 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:33,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:33,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:33,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:33,799 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:34,008 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:34,008 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:49:34,008 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:34,008 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:49:34,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:49:34,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:49:34,009 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 5 states. [2018-07-24 11:49:52,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:52,874 INFO L93 Difference]: Finished difference Result 11112 states and 19743 transitions. [2018-07-24 11:49:52,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:49:52,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-07-24 11:49:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:52,923 INFO L225 Difference]: With dead ends: 11112 [2018-07-24 11:49:52,923 INFO L226 Difference]: Without dead ends: 7932 [2018-07-24 11:49:52,939 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:49:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7932 states. [2018-07-24 11:49:53,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7932 to 7901. [2018-07-24 11:49:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7901 states. [2018-07-24 11:49:53,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7901 states to 7901 states and 11697 transitions. [2018-07-24 11:49:53,159 INFO L78 Accepts]: Start accepts. Automaton has 7901 states and 11697 transitions. Word has length 114 [2018-07-24 11:49:53,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:53,160 INFO L471 AbstractCegarLoop]: Abstraction has 7901 states and 11697 transitions. [2018-07-24 11:49:53,160 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:49:53,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7901 states and 11697 transitions. [2018-07-24 11:49:53,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-24 11:49:53,163 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:53,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:53,163 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 11:49:53,163 INFO L82 PathProgramCache]: Analyzing trace with hash 890985293, now seen corresponding path program 1 times [2018-07-24 11:49:53,164 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:53,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:53,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:53,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:53,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:53,477 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:49:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:53,558 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:53,559 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:49:53,559 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:53,559 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:49:53,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:49:53,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:49:53,560 INFO L87 Difference]: Start difference. First operand 7901 states and 11697 transitions. Second operand 6 states. [2018-07-24 11:50:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:04,922 INFO L93 Difference]: Finished difference Result 23594 states and 35435 transitions. [2018-07-24 11:50:04,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:50:04,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-07-24 11:50:04,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:04,992 INFO L225 Difference]: With dead ends: 23594 [2018-07-24 11:50:04,992 INFO L226 Difference]: Without dead ends: 15699 [2018-07-24 11:50:05,030 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 11:50:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15699 states. [2018-07-24 11:50:05,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15699 to 15620. [2018-07-24 11:50:05,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15620 states. [2018-07-24 11:50:05,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15620 states to 15620 states and 21004 transitions. [2018-07-24 11:50:05,394 INFO L78 Accepts]: Start accepts. Automaton has 15620 states and 21004 transitions. Word has length 122 [2018-07-24 11:50:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:05,395 INFO L471 AbstractCegarLoop]: Abstraction has 15620 states and 21004 transitions. [2018-07-24 11:50:05,395 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:50:05,395 INFO L276 IsEmpty]: Start isEmpty. Operand 15620 states and 21004 transitions. [2018-07-24 11:50:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-24 11:50:05,404 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:05,404 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:50:05,404 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 11:50:05,405 INFO L82 PathProgramCache]: Analyzing trace with hash 242020308, now seen corresponding path program 1 times [2018-07-24 11:50:05,405 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:05,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:05,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:05,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:05,406 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:05,703 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:50:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 56 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:06,019 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:50:06,020 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 11:50:06,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:06,041 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:50:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:06,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:50:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-07-24 11:50:06,646 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:50:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 56 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:07,472 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:50:07,473 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 11:50:07,473 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:07,473 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:50:07,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:50:07,474 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:50:07,474 INFO L87 Difference]: Start difference. First operand 15620 states and 21004 transitions. Second operand 5 states. [2018-07-24 11:50:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:18,823 INFO L93 Difference]: Finished difference Result 50427 states and 71285 transitions. [2018-07-24 11:50:18,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:50:18,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2018-07-24 11:50:18,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:19,020 INFO L225 Difference]: With dead ends: 50427 [2018-07-24 11:50:19,020 INFO L226 Difference]: Without dead ends: 34813 [2018-07-24 11:50:19,099 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 418 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-07-24 11:50:19,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34813 states. [2018-07-24 11:50:19,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34813 to 34608. [2018-07-24 11:50:19,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34608 states. [2018-07-24 11:50:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34608 states to 34608 states and 47389 transitions. [2018-07-24 11:50:20,041 INFO L78 Accepts]: Start accepts. Automaton has 34608 states and 47389 transitions. Word has length 212 [2018-07-24 11:50:20,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:20,042 INFO L471 AbstractCegarLoop]: Abstraction has 34608 states and 47389 transitions. [2018-07-24 11:50:20,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:50:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 34608 states and 47389 transitions. [2018-07-24 11:50:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-07-24 11:50:20,054 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:20,055 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:50:20,055 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 11:50:20,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1910806668, now seen corresponding path program 1 times [2018-07-24 11:50:20,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:20,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:20,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:20,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:20,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 56 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:20,447 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:50:20,447 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 11:50:20,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:20,738 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:50:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:20,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:50:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-07-24 11:50:21,172 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:50:21,382 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 11:50:22,111 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 56 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:22,143 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:50:22,143 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 11:50:22,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:22,144 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:50:22,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:50:22,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:50:22,145 INFO L87 Difference]: Start difference. First operand 34608 states and 47389 transitions. Second operand 5 states. [2018-07-24 11:50:34,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:34,017 INFO L93 Difference]: Finished difference Result 102150 states and 146838 transitions. [2018-07-24 11:50:34,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:50:34,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-07-24 11:50:34,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:34,324 INFO L225 Difference]: With dead ends: 102150 [2018-07-24 11:50:34,325 INFO L226 Difference]: Without dead ends: 67548 [2018-07-24 11:50:34,423 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:50:34,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67548 states. [2018-07-24 11:50:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67548 to 64988. [2018-07-24 11:50:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64988 states. [2018-07-24 11:50:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64988 states to 64988 states and 87967 transitions. [2018-07-24 11:50:36,280 INFO L78 Accepts]: Start accepts. Automaton has 64988 states and 87967 transitions. Word has length 216 [2018-07-24 11:50:36,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:36,281 INFO L471 AbstractCegarLoop]: Abstraction has 64988 states and 87967 transitions. [2018-07-24 11:50:36,281 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:50:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 64988 states and 87967 transitions. [2018-07-24 11:50:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-24 11:50:36,294 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:36,294 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:50:36,295 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 11:50:36,295 INFO L82 PathProgramCache]: Analyzing trace with hash 650404242, now seen corresponding path program 1 times [2018-07-24 11:50:36,295 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:36,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:36,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:36,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:36,296 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:36,615 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:50:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 56 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:37,004 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:50:37,005 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 11:50:37,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:37,021 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:50:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:37,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:50:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-07-24 11:50:37,519 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:50:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 56 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:37,810 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:50:37,810 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 11:50:37,810 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:37,811 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:50:37,811 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:50:37,811 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:50:37,812 INFO L87 Difference]: Start difference. First operand 64988 states and 87967 transitions. Second operand 5 states. [2018-07-24 11:50:46,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:46,133 INFO L93 Difference]: Finished difference Result 142935 states and 199987 transitions. [2018-07-24 11:50:46,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:50:46,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2018-07-24 11:50:46,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:46,380 INFO L225 Difference]: With dead ends: 142935 [2018-07-24 11:50:46,380 INFO L226 Difference]: Without dead ends: 77953 [2018-07-24 11:50:46,504 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 462 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-07-24 11:50:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77953 states. [2018-07-24 11:50:47,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77953 to 77793. [2018-07-24 11:50:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77793 states. [2018-07-24 11:50:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77793 states to 77793 states and 98777 transitions. [2018-07-24 11:50:47,797 INFO L78 Accepts]: Start accepts. Automaton has 77793 states and 98777 transitions. Word has length 234 [2018-07-24 11:50:47,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:47,798 INFO L471 AbstractCegarLoop]: Abstraction has 77793 states and 98777 transitions. [2018-07-24 11:50:47,798 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:50:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 77793 states and 98777 transitions. [2018-07-24 11:50:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-07-24 11:50:47,808 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:47,809 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:50:47,809 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 11:50:47,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2028313022, now seen corresponding path program 1 times [2018-07-24 11:50:47,809 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:47,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:47,811 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:50:48,095 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:50:48,095 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:50:48,095 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:48,096 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:50:48,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:50:48,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:50:48,097 INFO L87 Difference]: Start difference. First operand 77793 states and 98777 transitions. Second operand 4 states. [2018-07-24 11:50:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:58,217 INFO L93 Difference]: Finished difference Result 187675 states and 244137 transitions. [2018-07-24 11:50:58,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:50:58,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 258 [2018-07-24 11:50:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:58,544 INFO L225 Difference]: With dead ends: 187675 [2018-07-24 11:50:58,544 INFO L226 Difference]: Without dead ends: 109888 [2018-07-24 11:50:58,738 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:50:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109888 states. [2018-07-24 11:51:00,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109888 to 109848. [2018-07-24 11:51:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109848 states. [2018-07-24 11:51:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109848 states to 109848 states and 138939 transitions. [2018-07-24 11:51:00,916 INFO L78 Accepts]: Start accepts. Automaton has 109848 states and 138939 transitions. Word has length 258 [2018-07-24 11:51:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:51:00,916 INFO L471 AbstractCegarLoop]: Abstraction has 109848 states and 138939 transitions. [2018-07-24 11:51:00,916 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:51:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 109848 states and 138939 transitions. [2018-07-24 11:51:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-07-24 11:51:00,962 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:51:00,962 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 11:51:00,963 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 11:51:00,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1708620585, now seen corresponding path program 1 times [2018-07-24 11:51:00,963 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:51:00,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:00,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:00,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:00,964 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:51:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 279 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:01,469 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:51:01,469 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 11:51:01,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:01,480 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:51:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:01,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:51:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 279 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:01,843 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:51:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 279 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:02,040 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:51:02,040 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 11:51:02,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:02,059 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:51:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:02,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:51:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 279 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:02,479 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:51:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 279 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:02,938 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:51:02,939 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-07-24 11:51:02,939 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:51:02,940 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:51:02,940 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:51:02,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-07-24 11:51:02,941 INFO L87 Difference]: Start difference. First operand 109848 states and 138939 transitions. Second operand 9 states. [2018-07-24 11:51:17,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:17,355 INFO L93 Difference]: Finished difference Result 239065 states and 314203 transitions. [2018-07-24 11:51:17,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-24 11:51:17,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 378 [2018-07-24 11:51:17,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:17,820 INFO L225 Difference]: With dead ends: 239065 [2018-07-24 11:51:17,820 INFO L226 Difference]: Without dead ends: 112730 [2018-07-24 11:51:17,983 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1532 GetRequests, 1509 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-07-24 11:51:18,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112730 states. [2018-07-24 11:51:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112730 to 111857. [2018-07-24 11:51:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111857 states. [2018-07-24 11:51:19,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111857 states to 111857 states and 147444 transitions. [2018-07-24 11:51:19,788 INFO L78 Accepts]: Start accepts. Automaton has 111857 states and 147444 transitions. Word has length 378 [2018-07-24 11:51:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:51:19,788 INFO L471 AbstractCegarLoop]: Abstraction has 111857 states and 147444 transitions. [2018-07-24 11:51:19,789 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:51:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand 111857 states and 147444 transitions. [2018-07-24 11:51:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-07-24 11:51:19,842 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:51:19,843 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 11:51:19,843 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 11:51:19,843 INFO L82 PathProgramCache]: Analyzing trace with hash -2005369174, now seen corresponding path program 1 times [2018-07-24 11:51:19,844 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:51:19,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:19,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:19,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:19,845 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:51:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-07-24 11:51:21,583 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:51:21,583 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:51:21,583 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:51:21,584 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:51:21,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:51:21,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:51:21,584 INFO L87 Difference]: Start difference. First operand 111857 states and 147444 transitions. Second operand 3 states. [2018-07-24 11:51:29,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:29,483 INFO L93 Difference]: Finished difference Result 251989 states and 343241 transitions. [2018-07-24 11:51:29,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:51:29,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 423 [2018-07-24 11:51:29,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:29,862 INFO L225 Difference]: With dead ends: 251989 [2018-07-24 11:51:29,862 INFO L226 Difference]: Without dead ends: 140143 [2018-07-24 11:51:30,057 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:51:30,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140143 states. [2018-07-24 11:51:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140143 to 138617. [2018-07-24 11:51:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138617 states. [2018-07-24 11:51:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138617 states to 138617 states and 182140 transitions. [2018-07-24 11:51:36,838 INFO L78 Accepts]: Start accepts. Automaton has 138617 states and 182140 transitions. Word has length 423 [2018-07-24 11:51:36,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:51:36,838 INFO L471 AbstractCegarLoop]: Abstraction has 138617 states and 182140 transitions. [2018-07-24 11:51:36,838 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:51:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 138617 states and 182140 transitions. [2018-07-24 11:51:36,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2018-07-24 11:51:36,874 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:51:36,875 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:36,875 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 11:51:36,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1359173737, now seen corresponding path program 1 times [2018-07-24 11:51:36,876 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:51:36,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:36,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:36,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:36,877 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:51:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:37,690 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:51:37,690 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 11:51:37,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:37,697 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:51:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:37,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:51:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:38,625 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:51:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:39,010 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:51:39,010 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 11:51:39,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:39,030 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:51:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:39,422 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:51:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:39,556 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:51:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:40,124 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:51:40,125 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 11:51:40,125 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:51:40,127 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:51:40,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:51:40,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:51:40,128 INFO L87 Difference]: Start difference. First operand 138617 states and 182140 transitions. Second operand 9 states. [2018-07-24 11:51:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:58,655 INFO L93 Difference]: Finished difference Result 362814 states and 520876 transitions. [2018-07-24 11:51:58,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 11:51:58,656 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 474 [2018-07-24 11:51:58,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:59,784 INFO L225 Difference]: With dead ends: 362814 [2018-07-24 11:51:59,784 INFO L226 Difference]: Without dead ends: 211561 [2018-07-24 11:52:00,857 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1914 GetRequests, 1895 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:52:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211561 states. [2018-07-24 11:52:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211561 to 199878. [2018-07-24 11:52:03,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199878 states. [2018-07-24 11:52:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199878 states to 199878 states and 250732 transitions. [2018-07-24 11:52:04,481 INFO L78 Accepts]: Start accepts. Automaton has 199878 states and 250732 transitions. Word has length 474 [2018-07-24 11:52:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:04,481 INFO L471 AbstractCegarLoop]: Abstraction has 199878 states and 250732 transitions. [2018-07-24 11:52:04,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:52:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 199878 states and 250732 transitions. [2018-07-24 11:52:04,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2018-07-24 11:52:04,535 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:04,535 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:04,535 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:52:04,536 INFO L82 PathProgramCache]: Analyzing trace with hash 892779751, now seen corresponding path program 1 times [2018-07-24 11:52:04,536 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:04,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:04,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:04,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:04,537 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2018-07-24 11:52:04,901 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:52:04,901 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:52:04,901 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:04,902 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:52:04,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:52:04,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:52:04,902 INFO L87 Difference]: Start difference. First operand 199878 states and 250732 transitions. Second operand 4 states. [2018-07-24 11:52:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:52:19,199 INFO L93 Difference]: Finished difference Result 545432 states and 711473 transitions. [2018-07-24 11:52:19,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:52:19,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 578 [2018-07-24 11:52:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:52:21,490 INFO L225 Difference]: With dead ends: 545432 [2018-07-24 11:52:21,491 INFO L226 Difference]: Without dead ends: 345555 [2018-07-24 11:52:21,899 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:52:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345555 states. [2018-07-24 11:52:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345555 to 339153. [2018-07-24 11:52:27,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339153 states. [2018-07-24 11:52:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339153 states to 339153 states and 426054 transitions. [2018-07-24 11:52:28,102 INFO L78 Accepts]: Start accepts. Automaton has 339153 states and 426054 transitions. Word has length 578 [2018-07-24 11:52:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:28,103 INFO L471 AbstractCegarLoop]: Abstraction has 339153 states and 426054 transitions. [2018-07-24 11:52:28,104 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:52:28,104 INFO L276 IsEmpty]: Start isEmpty. Operand 339153 states and 426054 transitions. [2018-07-24 11:52:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2018-07-24 11:52:28,310 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:28,311 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:28,311 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:52:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash 600944229, now seen corresponding path program 1 times [2018-07-24 11:52:28,312 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:28,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:28,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:28,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:28,313 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 11:52:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 564 proven. 88 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 11:52:39,516 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:52:39,516 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 11:52:39,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:39,525 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:52:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:39,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:52:39,915 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 11:52:40,117 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:52:40,117 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:52:40,123 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:52:40,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:52:40 BoogieIcfgContainer [2018-07-24 11:52:40,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:52:40,124 INFO L168 Benchmark]: Toolchain (without parser) took 221082.56 ms. Allocated memory was 1.5 GB in the beginning and 5.6 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.5 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 11:52:40,126 INFO L168 Benchmark]: CDTParser took 0.23 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 11:52:40,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2483.74 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 11:52:40,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.31 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 11:52:40,128 INFO L168 Benchmark]: Boogie Preprocessor took 996.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 914.9 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 11:52:40,129 INFO L168 Benchmark]: RCFGBuilder took 9351.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 726.7 MB). Peak memory consumption was 726.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:52:40,129 INFO L168 Benchmark]: TraceAbstraction took 208035.23 ms. Allocated memory was 2.4 GB in the beginning and 5.6 GB in the end (delta: 3.1 GB). Free memory was 1.6 GB in the beginning and 4.0 GB in the end (delta: -2.4 GB). Peak memory consumption was 764.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:52:40,134 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2483.74 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 209.31 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 996.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 914.9 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 9351.09 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 726.7 MB). Peak memory consumption was 726.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208035.23 ms. Allocated memory was 2.4 GB in the beginning and 5.6 GB in the end (delta: 3.1 GB). Free memory was 1.6 GB in the beginning and 4.0 GB in the end (delta: -2.4 GB). Peak memory consumption was 764.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while BasicCegarLoop was analyzing trace of length 955 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 207.9s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 154.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3941 SDtfs, 34241 SDslu, 1985 SDs, 0 SdLazy, 66719 SolverSat, 16490 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 110.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4841 GetRequests, 4732 SyntacticMatches, 18 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339153occurred in iteration=12, 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: 25.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 23593 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 5519 NumberOfCodeBlocks, 5519 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7859 ConstructedInterpolants, 0 QuantifiedInterpolants, 7406523 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4032 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 5576/6050 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_label13_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-52-40-148.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label13_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-52-40-148.csv Completed graceful shutdown