java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label41_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 06:18:18,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 06:18:18,996 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 06:18:19,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 06:18:19,009 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 06:18:19,010 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 06:18:19,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 06:18:19,019 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 06:18:19,021 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 06:18:19,022 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 06:18:19,023 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 06:18:19,023 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 06:18:19,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 06:18:19,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 06:18:19,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 06:18:19,028 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 06:18:19,029 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 06:18:19,032 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 06:18:19,034 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 06:18:19,044 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 06:18:19,045 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 06:18:19,046 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 06:18:19,049 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 06:18:19,051 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 06:18:19,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 06:18:19,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 06:18:19,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 06:18:19,054 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 06:18:19,055 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 06:18:19,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 06:18:19,059 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 06:18:19,059 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 06:18:19,059 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 06:18:19,060 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 06:18:19,060 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 06:18:19,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 06:18:19,064 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 06:18:19,097 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 06:18:19,097 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 06:18:19,098 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 06:18:19,098 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 06:18:19,098 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 06:18:19,098 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 06:18:19,099 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 06:18:19,099 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 06:18:19,099 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 06:18:19,099 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 06:18:19,099 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 06:18:19,099 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 06:18:19,101 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 06:18:19,101 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 06:18:19,101 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 06:18:19,102 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 06:18:19,102 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 06:18:19,102 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 06:18:19,102 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 06:18:19,102 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 06:18:19,103 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 06:18:19,103 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 06:18:19,103 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 06:18:19,103 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 06:18:19,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 06:18:19,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 06:18:19,105 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 06:18:19,105 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 06:18:19,105 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 06:18:19,106 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 06:18:19,106 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 06:18:19,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 06:18:19,106 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 06:18:19,106 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 06:18:19,107 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 06:18:19,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 06:18:19,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 06:18:19,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 06:18:19,181 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 06:18:19,181 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 06:18:19,183 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label41_false-unreach-call.c [2018-07-21 06:18:19,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/406d9337c/f252e80d42fc4f2885683ceedec7298b/FLAG7b32bf693 [2018-07-21 06:18:20,304 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 06:18:20,305 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label41_false-unreach-call.c [2018-07-21 06:18:20,368 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/406d9337c/f252e80d42fc4f2885683ceedec7298b/FLAG7b32bf693 [2018-07-21 06:18:20,386 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/406d9337c/f252e80d42fc4f2885683ceedec7298b [2018-07-21 06:18:20,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 06:18:20,409 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 06:18:20,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 06:18:20,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 06:18:20,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 06:18:20,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:18:20" (1/1) ... [2018-07-21 06:18:20,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5916e1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:20, skipping insertion in model container [2018-07-21 06:18:20,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:18:20" (1/1) ... [2018-07-21 06:18:20,953 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 06:18:23,179 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 06:18:23,200 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 06:18:24,649 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 06:18:25,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25 WrapperNode [2018-07-21 06:18:25,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 06:18:25,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 06:18:25,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 06:18:25,154 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 06:18:25,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:25,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:26,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 06:18:26,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 06:18:26,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 06:18:26,509 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 06:18:26,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:26,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:26,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:26,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:26,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:27,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:27,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... [2018-07-21 06:18:27,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 06:18:27,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 06:18:27,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 06:18:27,270 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 06:18:27,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 06:18:27,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 06:18:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 06:18:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output6 [2018-07-21 06:18:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output6 [2018-07-21 06:18:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output5 [2018-07-21 06:18:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output5 [2018-07-21 06:18:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 06:18:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 06:18:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 06:18:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 06:18:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 06:18:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 06:18:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 06:18:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 06:18:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 06:18:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 06:18:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 06:18:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 06:18:44,277 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 06:18:44,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:18:44 BoogieIcfgContainer [2018-07-21 06:18:44,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 06:18:44,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 06:18:44,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 06:18:44,283 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 06:18:44,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:18:20" (1/3) ... [2018-07-21 06:18:44,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5126907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:18:44, skipping insertion in model container [2018-07-21 06:18:44,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:18:25" (2/3) ... [2018-07-21 06:18:44,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5126907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:18:44, skipping insertion in model container [2018-07-21 06:18:44,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:18:44" (3/3) ... [2018-07-21 06:18:44,288 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label41_false-unreach-call.c [2018-07-21 06:18:44,296 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 06:18:44,307 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 06:18:44,379 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 06:18:44,380 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 06:18:44,380 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 06:18:44,380 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 06:18:44,380 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 06:18:44,380 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 06:18:44,380 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 06:18:44,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 06:18:44,381 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 06:18:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-21 06:18:44,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-21 06:18:44,447 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:18:44,448 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 06:18:44,448 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:18:44,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2112526600, now seen corresponding path program 1 times [2018-07-21 06:18:44,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:18:44,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:18:44,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:18:44,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:18:44,505 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:18:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:18:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:18:44,802 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:18:44,803 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 06:18:44,803 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:18:44,806 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 06:18:44,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 06:18:44,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 06:18:44,824 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-21 06:19:02,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:19:02,401 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-07-21 06:19:02,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 06:19:02,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-07-21 06:19:02,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:19:02,459 INFO L225 Difference]: With dead ends: 4998 [2018-07-21 06:19:02,459 INFO L226 Difference]: Without dead ends: 3218 [2018-07-21 06:19:02,477 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 06:19:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-07-21 06:19:02,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-07-21 06:19:02,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-07-21 06:19:02,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-07-21 06:19:02,708 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 13 [2018-07-21 06:19:02,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:19:02,708 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-07-21 06:19:02,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 06:19:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-07-21 06:19:02,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-21 06:19:02,715 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:19:02,716 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:19:02,716 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:19:02,716 INFO L82 PathProgramCache]: Analyzing trace with hash 555193490, now seen corresponding path program 1 times [2018-07-21 06:19:02,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:19:02,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:19:02,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:19:02,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:19:02,718 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:19:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:19:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:19:03,307 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:19:03,307 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 06:19:03,308 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:19:03,309 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 06:19:03,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 06:19:03,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 06:19:03,310 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-07-21 06:19:36,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:19:36,866 INFO L93 Difference]: Finished difference Result 9683 states and 17692 transitions. [2018-07-21 06:19:36,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 06:19:36,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2018-07-21 06:19:36,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:19:36,920 INFO L225 Difference]: With dead ends: 9683 [2018-07-21 06:19:36,920 INFO L226 Difference]: Without dead ends: 6474 [2018-07-21 06:19:36,931 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 06:19:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2018-07-21 06:19:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 6371. [2018-07-21 06:19:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6371 states. [2018-07-21 06:19:37,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 9959 transitions. [2018-07-21 06:19:37,185 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 9959 transitions. Word has length 85 [2018-07-21 06:19:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:19:37,186 INFO L471 AbstractCegarLoop]: Abstraction has 6371 states and 9959 transitions. [2018-07-21 06:19:37,186 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 06:19:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 9959 transitions. [2018-07-21 06:19:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-21 06:19:37,191 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:19:37,191 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:19:37,191 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:19:37,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1046784803, now seen corresponding path program 1 times [2018-07-21 06:19:37,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:19:37,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:19:37,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:19:37,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:19:37,195 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:19:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:19:37,550 WARN L169 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 06:19:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:19:37,733 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:19:37,733 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 06:19:37,734 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:19:37,734 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 06:19:37,734 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 06:19:37,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 06:19:37,735 INFO L87 Difference]: Start difference. First operand 6371 states and 9959 transitions. Second operand 6 states. [2018-07-21 06:19:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:19:55,635 INFO L93 Difference]: Finished difference Result 24567 states and 39571 transitions. [2018-07-21 06:19:55,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:19:55,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2018-07-21 06:19:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:19:55,755 INFO L225 Difference]: With dead ends: 24567 [2018-07-21 06:19:55,755 INFO L226 Difference]: Without dead ends: 18202 [2018-07-21 06:19:55,787 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 06:19:55,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18202 states. [2018-07-21 06:19:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18202 to 17991. [2018-07-21 06:19:56,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17991 states. [2018-07-21 06:19:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17991 states to 17991 states and 26535 transitions. [2018-07-21 06:19:56,292 INFO L78 Accepts]: Start accepts. Automaton has 17991 states and 26535 transitions. Word has length 87 [2018-07-21 06:19:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:19:56,294 INFO L471 AbstractCegarLoop]: Abstraction has 17991 states and 26535 transitions. [2018-07-21 06:19:56,295 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 06:19:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand 17991 states and 26535 transitions. [2018-07-21 06:19:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-21 06:19:56,310 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:19:56,311 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:19:56,311 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:19:56,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1384571478, now seen corresponding path program 1 times [2018-07-21 06:19:56,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:19:56,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:19:56,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:19:56,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:19:56,313 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:19:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:19:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:19:57,027 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:19:57,027 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-21 06:19:57,027 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:19:57,028 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 06:19:57,028 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 06:19:57,028 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 06:19:57,029 INFO L87 Difference]: Start difference. First operand 17991 states and 26535 transitions. Second operand 7 states. [2018-07-21 06:20:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:20:36,431 INFO L93 Difference]: Finished difference Result 72455 states and 117215 transitions. [2018-07-21 06:20:36,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 06:20:36,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2018-07-21 06:20:36,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:20:36,689 INFO L225 Difference]: With dead ends: 72455 [2018-07-21 06:20:36,689 INFO L226 Difference]: Without dead ends: 54470 [2018-07-21 06:20:36,819 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 06:20:36,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54470 states. [2018-07-21 06:20:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54470 to 54066. [2018-07-21 06:20:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54066 states. [2018-07-21 06:20:38,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54066 states to 54066 states and 76353 transitions. [2018-07-21 06:20:38,559 INFO L78 Accepts]: Start accepts. Automaton has 54066 states and 76353 transitions. Word has length 137 [2018-07-21 06:20:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:20:38,561 INFO L471 AbstractCegarLoop]: Abstraction has 54066 states and 76353 transitions. [2018-07-21 06:20:38,561 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 06:20:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 54066 states and 76353 transitions. [2018-07-21 06:20:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-21 06:20:38,563 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:20:38,564 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 06:20:38,565 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:20:38,565 INFO L82 PathProgramCache]: Analyzing trace with hash -648380803, now seen corresponding path program 1 times [2018-07-21 06:20:38,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:20:38,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:20:38,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:20:38,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:20:38,566 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:20:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:20:38,902 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 06:20:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 06:20:39,357 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 06:20:39,357 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 06:20:39,357 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:20:39,360 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 06:20:39,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 06:20:39,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 06:20:39,361 INFO L87 Difference]: Start difference. First operand 54066 states and 76353 transitions. Second operand 6 states. [2018-07-21 06:21:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 06:21:02,850 INFO L93 Difference]: Finished difference Result 146285 states and 221629 transitions. [2018-07-21 06:21:02,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 06:21:02,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-07-21 06:21:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 06:21:03,181 INFO L225 Difference]: With dead ends: 146285 [2018-07-21 06:21:03,182 INFO L226 Difference]: Without dead ends: 92225 [2018-07-21 06:21:03,301 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 06:21:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92225 states. [2018-07-21 06:21:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92225 to 91543. [2018-07-21 06:21:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91543 states. [2018-07-21 06:21:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91543 states to 91543 states and 130428 transitions. [2018-07-21 06:21:05,381 INFO L78 Accepts]: Start accepts. Automaton has 91543 states and 130428 transitions. Word has length 146 [2018-07-21 06:21:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 06:21:05,382 INFO L471 AbstractCegarLoop]: Abstraction has 91543 states and 130428 transitions. [2018-07-21 06:21:05,382 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 06:21:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 91543 states and 130428 transitions. [2018-07-21 06:21:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-21 06:21:05,386 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 06:21:05,386 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 06:21:05,387 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 06:21:05,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1475197391, now seen corresponding path program 1 times [2018-07-21 06:21:05,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 06:21:05,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:21:05,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 06:21:05,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 06:21:05,391 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 06:21:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 06:21:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 06:21:05,620 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 06:21:05,620 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 06:21:05,621 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-07-21 06:21:05,623 INFO L201 CegarAbsIntRunner]: [0], [1], [5230], [5234], [5240], [5244], [5246], [5251], [5254], [5256], [5259], [5267], [5275], [5283], [5291], [5299], [5307], [5315], [5323], [5331], [5339], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5723], [5731], [5739], [5743], [5746], [5750], [5751], [5755], [5766], [5770], [5774], [5778], [5782], [5786], [5790], [5794], [5798], [5802], [5806], [5810], [5821], [5832], [5835], [5838], [5842], [6826], [6833], [6834], [6835], [6839], [6840] [2018-07-21 06:21:05,689 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 06:21:05,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 06:21:19,288 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 06:21:19,289 INFO L272 AbstractInterpreter]: Visited 91 different actions 91 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 06:21:19,302 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 06:21:27,318 INFO L232 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 74.92% of their original sizes. [2018-07-21 06:21:27,318 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 06:21:28,334 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 06:21:28,335 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 06:21:28,335 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 06:21:28,335 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 06:21:28,336 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 06:21:28,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 06:21:28,336 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 06:21:28,336 INFO L87 Difference]: Start difference. First operand 91543 states and 130428 transitions. Second operand 7 states. [2018-07-21 06:21:43,313 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 06:21:51,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 06:21:51,170 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 06:21:51,177 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 06:21:51,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 06:21:51 BoogieIcfgContainer [2018-07-21 06:21:51,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 06:21:51,179 INFO L168 Benchmark]: Toolchain (without parser) took 210778.54 ms. Allocated memory was 303.6 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 223.3 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-07-21 06:21:51,180 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 303.6 MB. Free memory is still 268.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 06:21:51,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4742.49 ms. Allocated memory was 303.6 MB in the beginning and 387.4 MB in the end (delta: 83.9 MB). Free memory was 223.3 MB in the beginning and 113.7 MB in the end (delta: 109.6 MB). Peak memory consumption was 217.1 MB. Max. memory is 5.3 GB. [2018-07-21 06:21:51,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 1355.37 ms. Allocated memory was 387.4 MB in the beginning and 677.9 MB in the end (delta: 290.5 MB). Free memory was 113.7 MB in the beginning and 521.2 MB in the end (delta: -407.5 MB). Peak memory consumption was 100.5 MB. Max. memory is 5.3 GB. [2018-07-21 06:21:51,185 INFO L168 Benchmark]: Boogie Preprocessor took 760.74 ms. Allocated memory is still 677.9 MB. Free memory was 521.2 MB in the beginning and 423.0 MB in the end (delta: 98.2 MB). Peak memory consumption was 98.2 MB. Max. memory is 5.3 GB. [2018-07-21 06:21:51,186 INFO L168 Benchmark]: RCFGBuilder took 17008.08 ms. Allocated memory was 677.9 MB in the beginning and 1.0 GB in the end (delta: 351.8 MB). Free memory was 423.0 MB in the beginning and 808.2 MB in the end (delta: -385.2 MB). Peak memory consumption was 352.7 MB. Max. memory is 5.3 GB. [2018-07-21 06:21:51,187 INFO L168 Benchmark]: TraceAbstraction took 186898.15 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 808.2 MB in the beginning and 1.6 GB in the end (delta: -773.2 MB). Peak memory consumption was 895.6 MB. Max. memory is 5.3 GB. [2018-07-21 06:21:51,197 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 303.6 MB. Free memory is still 268.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4742.49 ms. Allocated memory was 303.6 MB in the beginning and 387.4 MB in the end (delta: 83.9 MB). Free memory was 223.3 MB in the beginning and 113.7 MB in the end (delta: 109.6 MB). Peak memory consumption was 217.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 1355.37 ms. Allocated memory was 387.4 MB in the beginning and 677.9 MB in the end (delta: 290.5 MB). Free memory was 113.7 MB in the beginning and 521.2 MB in the end (delta: -407.5 MB). Peak memory consumption was 100.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 760.74 ms. Allocated memory is still 677.9 MB. Free memory was 521.2 MB in the beginning and 423.0 MB in the end (delta: 98.2 MB). Peak memory consumption was 98.2 MB. Max. memory is 5.3 GB. * RCFGBuilder took 17008.08 ms. Allocated memory was 677.9 MB in the beginning and 1.0 GB in the end (delta: 351.8 MB). Free memory was 423.0 MB in the beginning and 808.2 MB in the end (delta: -385.2 MB). Peak memory consumption was 352.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 186898.15 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 808.2 MB in the beginning and 1.6 GB in the end (delta: -773.2 MB). Peak memory consumption was 895.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 34]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 34). Cancelled while BasicCegarLoop was constructing difference of abstraction (91543states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (728 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 186.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 155.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3225 SDtfs, 32067 SDslu, 4334 SDs, 0 SdLazy, 57214 SolverSat, 16854 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 133.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 218 GetRequests, 179 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91543occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.994830053667263 AbsIntWeakeningRatio, 0.1744186046511628 AbsIntAvgWeakeningVarsNumRemoved, 63.63953488372093 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 1403 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 635 ConstructedInterpolants, 0 QuantifiedInterpolants, 486737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 41/106 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label41_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_06-21-51-215.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label41_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_06-21-51-215.csv Completed graceful shutdown