java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:13:21,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:13:21,011 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:13:21,024 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:13:21,025 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:13:21,026 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:13:21,027 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:13:21,029 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:13:21,031 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:13:21,031 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:13:21,032 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:13:21,033 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:13:21,034 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:13:21,037 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:13:21,038 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:13:21,039 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:13:21,040 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:13:21,049 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:13:21,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:13:21,055 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:13:21,057 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:13:21,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:13:21,062 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 22:13:21,062 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 22:13:21,062 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 22:13:21,064 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 22:13:21,065 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 22:13:21,066 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 22:13:21,066 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 22:13:21,070 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 22:13:21,071 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 22:13:21,071 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 22:13:21,072 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:13:21,072 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:13:21,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:13:21,075 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:13:21,076 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 22:13:21,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:13:21,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:13:21,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:13:21,111 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:13:21,112 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:13:21,112 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:13:21,113 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:13:21,113 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:13:21,113 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:13:21,113 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:13:21,113 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:13:21,115 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:13:21,116 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:13:21,116 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:13:21,116 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:13:21,116 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:13:21,116 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:13:21,117 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:13:21,117 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:13:21,117 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:13:21,119 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:13:21,119 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:13:21,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:13:21,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:13:21,119 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:13:21,120 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:13:21,120 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:13:21,120 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:13:21,120 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:13:21,120 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:13:21,121 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:13:21,121 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:13:21,121 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:13:21,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:13:21,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:13:21,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:13:21,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:13:21,224 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:13:21,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label24_true-unreach-call.c [2018-07-23 22:13:21,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfde3d44/7f0074771a4b4f68ab91a92b90669d2c/FLAG8fb691c5d [2018-07-23 22:13:22,101 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:13:22,101 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label24_true-unreach-call.c [2018-07-23 22:13:22,141 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfde3d44/7f0074771a4b4f68ab91a92b90669d2c/FLAG8fb691c5d [2018-07-23 22:13:22,164 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfde3d44/7f0074771a4b4f68ab91a92b90669d2c [2018-07-23 22:13:22,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:13:22,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:13:22,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:13:22,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:13:22,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:13:22,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:13:22" (1/1) ... [2018-07-23 22:13:22,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a5f959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:22, skipping insertion in model container [2018-07-23 22:13:22,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:13:22" (1/1) ... [2018-07-23 22:13:22,517 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:13:23,524 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:13:23,545 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:13:24,253 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:13:24,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24 WrapperNode [2018-07-23 22:13:24,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:13:24,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:13:24,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:13:24,502 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:13:24,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:24,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:24,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:13:24,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:13:24,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:13:24,759 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:13:25,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... [2018-07-23 22:13:25,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:13:25,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:13:25,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:13:25,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:13:25,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:13:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:13:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:13:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:13:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:13:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-23 22:13:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-23 22:13:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:13:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:13:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-23 22:13:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-23 22:13:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:13:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:13:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:13:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:13:37,079 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:13:37,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:13:37 BoogieIcfgContainer [2018-07-23 22:13:37,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:13:37,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:13:37,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:13:37,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:13:37,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:13:22" (1/3) ... [2018-07-23 22:13:37,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5043fd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:13:37, skipping insertion in model container [2018-07-23 22:13:37,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:13:24" (2/3) ... [2018-07-23 22:13:37,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5043fd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:13:37, skipping insertion in model container [2018-07-23 22:13:37,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:13:37" (3/3) ... [2018-07-23 22:13:37,099 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label24_true-unreach-call.c [2018-07-23 22:13:37,110 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:13:37,120 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:13:37,178 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:13:37,179 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:13:37,179 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:13:37,179 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:13:37,180 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:13:37,180 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:13:37,180 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:13:37,180 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:13:37,180 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:13:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-23 22:13:37,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 22:13:37,227 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:13:37,228 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:13:37,228 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:13:37,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1602315639, now seen corresponding path program 1 times [2018-07-23 22:13:37,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:13:37,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:13:37,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:13:37,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:13:37,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:13:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:13:37,701 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:13:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:13:37,809 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:13:37,809 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:13:37,809 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:13:37,815 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:13:37,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:13:37,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:13:37,836 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-23 22:13:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:13:49,761 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-23 22:13:49,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:13:49,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-07-23 22:13:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:13:49,801 INFO L225 Difference]: With dead ends: 2446 [2018-07-23 22:13:49,801 INFO L226 Difference]: Without dead ends: 1604 [2018-07-23 22:13:49,818 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 [2018-07-23 22:13:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-23 22:13:50,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-23 22:13:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-23 22:13:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2969 transitions. [2018-07-23 22:13:50,020 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2969 transitions. Word has length 53 [2018-07-23 22:13:50,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:13:50,021 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2969 transitions. [2018-07-23 22:13:50,021 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:13:50,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2969 transitions. [2018-07-23 22:13:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 22:13:50,035 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:13:50,038 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 22:13:50,038 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:13:50,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1056063170, now seen corresponding path program 1 times [2018-07-23 22:13:50,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:13:50,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:13:50,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:13:50,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:13:50,042 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:13:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:13:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:13:50,422 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:13:50,422 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:13:50,422 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:13:50,424 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:13:50,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:13:50,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:13:50,425 INFO L87 Difference]: Start difference. First operand 1604 states and 2969 transitions. Second operand 6 states. [2018-07-23 22:14:07,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:14:07,933 INFO L93 Difference]: Finished difference Result 6329 states and 11914 transitions. [2018-07-23 22:14:07,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:14:07,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-07-23 22:14:07,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:14:07,967 INFO L225 Difference]: With dead ends: 6329 [2018-07-23 22:14:07,968 INFO L226 Difference]: Without dead ends: 4731 [2018-07-23 22:14:07,978 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 22:14:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2018-07-23 22:14:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 4702. [2018-07-23 22:14:08,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4702 states. [2018-07-23 22:14:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4702 states to 4702 states and 7573 transitions. [2018-07-23 22:14:08,153 INFO L78 Accepts]: Start accepts. Automaton has 4702 states and 7573 transitions. Word has length 127 [2018-07-23 22:14:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:14:08,154 INFO L471 AbstractCegarLoop]: Abstraction has 4702 states and 7573 transitions. [2018-07-23 22:14:08,154 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:14:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4702 states and 7573 transitions. [2018-07-23 22:14:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 22:14:08,166 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:14:08,166 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:14:08,166 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:14:08,167 INFO L82 PathProgramCache]: Analyzing trace with hash -636478170, now seen corresponding path program 1 times [2018-07-23 22:14:08,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:14:08,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:14:08,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:14:08,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:14:08,172 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:14:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:14:08,540 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:14:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:14:09,053 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:14:09,053 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:14:09,054 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-07-23 22:14:09,056 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [325], [327], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [518], [1374], [2360], [2364], [2370], [2374], [2376], [3269], [3270], [3271], [3273], [3274] [2018-07-23 22:14:09,117 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:14:09,118 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:14:24,200 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:14:24,202 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-23 22:14:24,249 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:14:30,512 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 76.21% of their original sizes. [2018-07-23 22:14:30,513 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:14:32,773 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:14:32,775 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:14:32,775 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-07-23 22:14:32,776 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:14:32,777 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 22:14:32,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 22:14:32,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 22:14:32,778 INFO L87 Difference]: Start difference. First operand 4702 states and 7573 transitions. Second operand 11 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown