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_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 20:55:26,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 20:55:26,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 20:55:26,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 20:55:26,265 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 20:55:26,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 20:55:26,267 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 20:55:26,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 20:55:26,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 20:55:26,275 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 20:55:26,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 20:55:26,276 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 20:55:26,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 20:55:26,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 20:55:26,281 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 20:55:26,281 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 20:55:26,282 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 20:55:26,296 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 20:55:26,298 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 20:55:26,300 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 20:55:26,301 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 20:55:26,302 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 20:55:26,304 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 20:55:26,304 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 20:55:26,309 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 20:55:26,310 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 20:55:26,311 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 20:55:26,312 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 20:55:26,312 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 20:55:26,317 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 20:55:26,318 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 20:55:26,318 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 20:55:26,319 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 20:55:26,319 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 20:55:26,320 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 20:55:26,320 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 20:55:26,322 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 20:55:26,347 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 20:55:26,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 20:55:26,348 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 20:55:26,348 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 20:55:26,348 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 20:55:26,349 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 20:55:26,349 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 20:55:26,349 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 20:55:26,349 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 20:55:26,349 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 20:55:26,350 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 20:55:26,350 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 20:55:26,350 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 20:55:26,351 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 20:55:26,352 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 20:55:26,352 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 20:55:26,352 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 20:55:26,352 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 20:55:26,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 20:55:26,353 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 20:55:26,353 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 20:55:26,353 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 20:55:26,353 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 20:55:26,353 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 20:55:26,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:55:26,354 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 20:55:26,354 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 20:55:26,354 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 20:55:26,354 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 20:55:26,354 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 20:55:26,355 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 20:55:26,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 20:55:26,356 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 20:55:26,357 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 20:55:26,357 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 20:55:26,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 20:55:26,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 20:55:26,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 20:55:26,435 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 20:55:26,436 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 20:55:26,436 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label04_true-unreach-call.c [2018-07-21 20:55:26,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/4d3057f4a/8f967c8e8e284b298e33233192733a39/FLAG0404dce5c [2018-07-21 20:55:27,489 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 20:55:27,489 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label04_true-unreach-call.c [2018-07-21 20:55:27,881 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/4d3057f4a/8f967c8e8e284b298e33233192733a39/FLAG0404dce5c [2018-07-21 20:55:27,931 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/4d3057f4a/8f967c8e8e284b298e33233192733a39 [2018-07-21 20:55:27,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 20:55:27,946 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 20:55:27,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 20:55:27,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 20:55:27,955 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 20:55:27,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:55:27" (1/1) ... [2018-07-21 20:55:27,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4424207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:27, skipping insertion in model container [2018-07-21 20:55:27,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:55:27" (1/1) ... [2018-07-21 20:55:28,499 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 20:55:30,749 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:55:30,768 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 20:55:32,323 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:55:32,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32 WrapperNode [2018-07-21 20:55:32,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 20:55:32,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 20:55:32,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 20:55:32,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 20:55:32,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 20:55:34,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 20:55:34,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 20:55:34,173 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 20:55:34,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (1/1) ... [2018-07-21 20:55:34,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 20:55:34,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 20:55:34,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 20:55:34,956 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 20:55:34,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (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 20:55:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-21 20:55:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-21 20:55:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 20:55:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-21 20:55:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 20:55:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 20:55:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 20:55:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-21 20:55:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 20:55:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-21 20:55:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 20:55:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 20:55:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 20:55:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 20:55:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:55:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:55:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:55:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:55:53,657 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 20:55:53,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:55:53 BoogieIcfgContainer [2018-07-21 20:55:53,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 20:55:53,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 20:55:53,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 20:55:53,661 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 20:55:53,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:55:27" (1/3) ... [2018-07-21 20:55:53,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bf9d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:55:53, skipping insertion in model container [2018-07-21 20:55:53,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:55:32" (2/3) ... [2018-07-21 20:55:53,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bf9d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:55:53, skipping insertion in model container [2018-07-21 20:55:53,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:55:53" (3/3) ... [2018-07-21 20:55:53,664 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label04_true-unreach-call.c [2018-07-21 20:55:53,671 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 20:55:53,680 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 20:55:53,745 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 20:55:53,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 20:55:53,746 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 20:55:53,746 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 20:55:53,746 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 20:55:53,746 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 20:55:53,746 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 20:55:53,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 20:55:53,748 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 20:55:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-21 20:55:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-21 20:55:53,813 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:55:53,814 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:55:53,815 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:55:53,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1152033494, now seen corresponding path program 1 times [2018-07-21 20:55:53,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:55:53,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:55:53,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:55:53,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:55:53,870 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:55:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:55:54,366 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 20:55:54,472 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 20:55:54,474 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:55:54,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 20:55:54,474 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:55:54,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 20:55:54,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 20:55:54,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 20:55:54,497 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-21 20:56:06,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:56:06,272 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-07-21 20:56:06,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 20:56:06,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-07-21 20:56:06,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:56:06,340 INFO L225 Difference]: With dead ends: 4995 [2018-07-21 20:56:06,340 INFO L226 Difference]: Without dead ends: 3215 [2018-07-21 20:56:06,353 INFO L578 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 [2018-07-21 20:56:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-07-21 20:56:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-07-21 20:56:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-07-21 20:56:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-07-21 20:56:06,612 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 69 [2018-07-21 20:56:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:56:06,613 INFO L471 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-07-21 20:56:06,613 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 20:56:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-07-21 20:56:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-21 20:56:06,629 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:56:06,629 INFO L358 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, 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] [2018-07-21 20:56:06,629 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:56:06,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1703522534, now seen corresponding path program 1 times [2018-07-21 20:56:06,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:56:06,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:56:06,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:56:06,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:56:06,634 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:56:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:56:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:56:07,112 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:56:07,112 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 20:56:07,112 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:56:07,114 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 20:56:07,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 20:56:07,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 20:56:07,116 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-07-21 20:56:36,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:56:36,829 INFO L93 Difference]: Finished difference Result 9667 states and 17611 transitions. [2018-07-21 20:56:36,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 20:56:36,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-07-21 20:56:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:56:36,872 INFO L225 Difference]: With dead ends: 9667 [2018-07-21 20:56:36,873 INFO L226 Difference]: Without dead ends: 6460 [2018-07-21 20:56:36,883 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 20:56:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2018-07-21 20:56:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 6349. [2018-07-21 20:56:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6349 states. [2018-07-21 20:56:37,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 9904 transitions. [2018-07-21 20:56:37,138 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 9904 transitions. Word has length 143 [2018-07-21 20:56:37,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:56:37,139 INFO L471 AbstractCegarLoop]: Abstraction has 6349 states and 9904 transitions. [2018-07-21 20:56:37,139 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 20:56:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 9904 transitions. [2018-07-21 20:56:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-21 20:56:37,152 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:56:37,153 INFO L358 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, 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] [2018-07-21 20:56:37,153 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:56:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1505056326, now seen corresponding path program 1 times [2018-07-21 20:56:37,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:56:37,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:56:37,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:56:37,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:56:37,155 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:56:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:56:37,496 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 20:56:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:56:37,736 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:56:37,736 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:56:37,737 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:56:37,737 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:56:37,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:56:37,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:56:37,738 INFO L87 Difference]: Start difference. First operand 6349 states and 9904 transitions. Second operand 6 states. [2018-07-21 20:56:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:56:50,670 INFO L93 Difference]: Finished difference Result 15878 states and 24892 transitions. [2018-07-21 20:56:50,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:56:50,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-07-21 20:56:50,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:56:50,724 INFO L225 Difference]: With dead ends: 15878 [2018-07-21 20:56:50,724 INFO L226 Difference]: Without dead ends: 9535 [2018-07-21 20:56:50,743 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 20:56:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9535 states. [2018-07-21 20:56:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9535 to 9408. [2018-07-21 20:56:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9408 states. [2018-07-21 20:56:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9408 states to 9408 states and 13925 transitions. [2018-07-21 20:56:51,227 INFO L78 Accepts]: Start accepts. Automaton has 9408 states and 13925 transitions. Word has length 148 [2018-07-21 20:56:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:56:51,227 INFO L471 AbstractCegarLoop]: Abstraction has 9408 states and 13925 transitions. [2018-07-21 20:56:51,227 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:56:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 9408 states and 13925 transitions. [2018-07-21 20:56:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-21 20:56:51,232 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:56:51,232 INFO L358 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, 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] [2018-07-21 20:56:51,232 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:56:51,233 INFO L82 PathProgramCache]: Analyzing trace with hash 793113334, now seen corresponding path program 1 times [2018-07-21 20:56:51,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:56:51,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:56:51,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:56:51,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:56:51,237 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:56:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:56:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:56:51,617 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:56:51,617 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 20:56:51,617 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:56:51,618 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 20:56:51,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 20:56:51,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 20:56:51,618 INFO L87 Difference]: Start difference. First operand 9408 states and 13925 transitions. Second operand 5 states. [2018-07-21 20:57:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:57:08,651 INFO L93 Difference]: Finished difference Result 28365 states and 42599 transitions. [2018-07-21 20:57:08,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 20:57:08,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2018-07-21 20:57:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:57:08,731 INFO L225 Difference]: With dead ends: 28365 [2018-07-21 20:57:08,732 INFO L226 Difference]: Without dead ends: 18963 [2018-07-21 20:57:08,756 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 20:57:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18963 states. [2018-07-21 20:57:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18963 to 18613. [2018-07-21 20:57:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18613 states. [2018-07-21 20:57:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18613 states to 18613 states and 26444 transitions. [2018-07-21 20:57:09,178 INFO L78 Accepts]: Start accepts. Automaton has 18613 states and 26444 transitions. Word has length 151 [2018-07-21 20:57:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:57:09,179 INFO L471 AbstractCegarLoop]: Abstraction has 18613 states and 26444 transitions. [2018-07-21 20:57:09,180 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 20:57:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 18613 states and 26444 transitions. [2018-07-21 20:57:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-21 20:57:09,182 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:57:09,182 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:57:09,183 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:57:09,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1270686500, now seen corresponding path program 1 times [2018-07-21 20:57:09,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:57:09,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:57:09,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:57:09,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:57:09,185 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:57:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:57:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:57:09,446 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:57:09,446 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:57:09,446 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:57:09,447 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:57:09,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:57:09,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:57:09,447 INFO L87 Difference]: Start difference. First operand 18613 states and 26444 transitions. Second operand 6 states. [2018-07-21 20:57:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:57:28,852 INFO L93 Difference]: Finished difference Result 67181 states and 98630 transitions. [2018-07-21 20:57:28,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:57:28,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2018-07-21 20:57:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:57:29,027 INFO L225 Difference]: With dead ends: 67181 [2018-07-21 20:57:29,028 INFO L226 Difference]: Without dead ends: 48574 [2018-07-21 20:57:29,089 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:57:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48574 states. [2018-07-21 20:57:30,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48574 to 48140. [2018-07-21 20:57:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48140 states. [2018-07-21 20:57:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48140 states to 48140 states and 66903 transitions. [2018-07-21 20:57:30,324 INFO L78 Accepts]: Start accepts. Automaton has 48140 states and 66903 transitions. Word has length 178 [2018-07-21 20:57:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:57:30,324 INFO L471 AbstractCegarLoop]: Abstraction has 48140 states and 66903 transitions. [2018-07-21 20:57:30,324 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:57:30,324 INFO L276 IsEmpty]: Start isEmpty. Operand 48140 states and 66903 transitions. [2018-07-21 20:57:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-07-21 20:57:30,328 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:57:30,328 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:57:30,328 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:57:30,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1462804251, now seen corresponding path program 1 times [2018-07-21 20:57:30,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:57:30,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:57:30,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:57:30,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:57:30,330 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:57:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:57:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:57:30,973 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:57:30,993 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:57:30,994 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:57:30,994 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:57:30,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:57:30,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:57:30,995 INFO L87 Difference]: Start difference. First operand 48140 states and 66903 transitions. Second operand 6 states. [2018-07-21 20:58:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:58:11,832 INFO L93 Difference]: Finished difference Result 184947 states and 291346 transitions. [2018-07-21 20:58:11,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 20:58:11,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2018-07-21 20:58:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:58:12,330 INFO L225 Difference]: With dead ends: 184947 [2018-07-21 20:58:12,330 INFO L226 Difference]: Without dead ends: 136813 [2018-07-21 20:58:12,893 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 20:58:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136813 states. [2018-07-21 20:58:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136813 to 136206. [2018-07-21 20:58:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136206 states. [2018-07-21 20:58:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136206 states to 136206 states and 189372 transitions. [2018-07-21 20:58:15,384 INFO L78 Accepts]: Start accepts. Automaton has 136206 states and 189372 transitions. Word has length 232 [2018-07-21 20:58:15,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:58:15,385 INFO L471 AbstractCegarLoop]: Abstraction has 136206 states and 189372 transitions. [2018-07-21 20:58:15,385 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:58:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 136206 states and 189372 transitions. [2018-07-21 20:58:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2018-07-21 20:58:19,297 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:58:19,299 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:58:19,299 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:58:19,300 INFO L82 PathProgramCache]: Analyzing trace with hash 300655624, now seen corresponding path program 1 times [2018-07-21 20:58:19,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:58:19,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:58:19,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:58:19,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:58:19,301 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:58:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:58:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 401 proven. 78 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-21 20:58:20,716 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:58:20,716 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:58:20,718 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 956 with the following transitions: [2018-07-21 20:58:20,723 INFO L201 CegarAbsIntRunner]: [2006], [2007], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3116], [3127], [3131], [3135], [3146], [3150], [3154], [3158], [3169], [3173], [3184], [3188], [3192], [3196], [3200], [3204], [3208], [3212], [3216], [3220], [3224], [3228], [3232], [3236], [3240], [3251], [3255], [3259], [3263], [3267], [3271], [3275], [3279], [3283], [3287], [3291], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3361], [3365], [3376], [3380], [3384], [3395], [3399], [3403], [3407], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3449], [3454], [3456], [4195], [4199], [4203], [4209], [4213], [4215], [4220], [4224], [4228], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4303], [4314], [4318], [4322], [4333], [4337], [4341], [4345], [4349], [4353], [4357], [4361], [4365], [4369], [4373], [4377], [4381], [4385], [4389], [4393], [4397], [4401], [4405], [4409], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4478], [4482], [4486], [4490], [4494], [4498], [4502], [4506], [4510], [4514], [4518], [4522], [4526], [4530], [4534], [4538], [4542], [4546], [4550], [4554], [4558], [4562], [4566], [4577], [4581], [4585], [4589], [4593], [4597], [4601], [4605], [4609], [4613], [4617], [4621], [4625], [4629], [4633], [4644], [4648], [4652], [4656], [4660], [4671], [4675], [4679], [4683], [4687], [4691], [4695], [4699], [4703], [4714], [4718], [4722], [4733], [4737], [4741], [4745], [4749], [4753], [4757], [4761], [4765], [4769], [4773], [4777], [4788], [4792], [4796], [4800], [4804], [4808], [4812], [4816], [4827], [4831], [4835], [4839], [4843], [4847], [4851], [4855], [4859], [4863], [4867], [4871], [4882], [4886], [4897], [4901], [4905], [4909], [4920], [4924], [4928], [4932], [4936], [4940], [4944], [4948], [4959], [4963], [4967], [4978], [4982], [4986], [4990], [4994], [4998], [5002], [5006], [5010], [5014], [5018], [5022], [5026], [5030], [5034], [5038], [5042], [5046], [5050], [5054], [5058], [5062], [5066], [5070], [5074], [5078], [5082], [5086], [5090], [5094], [5098], [5102], [5106], [5110], [5114], [5118], [5129], [5133], [5144], [5148], [5152], [5156], [5160], [5164], [5168], [5172], [5176], [5180], [5191], [5195], [5199], [5203], [5207], [5211], [5215], [5219], [5223], [5227], [5231], [5235], [5239], [5243], [5247], [5249], [5250], [5251], [5254], [5256], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5650], [5658], [5666], [5674], [5682], [5690], [5698], [5702], [5704], [5707], [5715], [5723], [5731], [5739], [5751], [5755], [5766], [5770], [5774], [5778], [5782], [5786], [5790], [5793], [5794], [5798], [5802], [5806], [5810], [5821], [5832], [5843], [5847], [5851], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5970], [5974], [5978], [5982], [5986], [5990], [6001], [6005], [6009], [6020], [6024], [6028], [6032], [6036], [6040], [6044], [6048], [6052], [6056], [6060], [6064], [6075], [6079], [6083], [6087], [6091], [6095], [6099], [6103], [6107], [6111], [6115], [6126], [6130], [6134], [6145], [6149], [6153], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6244], [6248], [6252], [6256], [6260], [6264], [6275], [6279], [6283], [6287], [6291], [6302], [6306], [6310], [6314], [6318], [6322], [6326], [6330], [6334], [6338], [6349], [6353], [6357], [6368], [6372], [6376], [6380], [6384], [6395], [6399], [6403], [6407], [6411], [6415], [6426], [6437], [6441], [6444], [6445], [6449], [6453], [6464], [6468], [6479], [6483], [6487], [6491], [6495], [6499], [6510], [6514], [6518], [6522], [6526], [6530], [6534], [6538], [6549], [6553], [6557], [6561], [6565], [6569], [6573], [6577], [6581], [6585], [6589], [6593], [6597], [6601], [6605], [6609], [6613], [6617], [6628], [6632], [6643], [6647], [6658], [6669], [6673], [6677], [6681], [6685], [6689], [6693], [6697], [6701], [6705], [6709], [6713], [6717], [6721], [6725], [6736], [6740], [6751], [6755], [6759], [6763], [6767], [6771], [6775], [6779], [6783], [6787], [6791], [6795], [6799], [6803], [6807], [6811], [6815], [6819], [6823], [6825], [6826], [6833], [6834], [6835], [6837], [6838], [6839], [6840], [6841], [6842] [2018-07-21 20:58:20,850 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:58:20,851 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:58:52,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 20:59:11,281 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 20:59:11,282 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 20:59:11,283 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 20:59:11,283 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:59:11,283 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 20:59:11,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:59:11,291 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 20:59:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:59:11,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 20:59:11,692 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 20:59:11,894 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 20:59:11,894 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 20:59:11,898 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 20:59:11,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:59:11 BoogieIcfgContainer [2018-07-21 20:59:11,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 20:59:11,900 INFO L168 Benchmark]: Toolchain (without parser) took 223958.75 ms. Allocated memory was 308.8 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 229.5 MB in the beginning and 353.9 MB in the end (delta: -124.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 5.3 GB. [2018-07-21 20:59:11,901 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 308.8 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 20:59:11,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4918.24 ms. Allocated memory was 308.8 MB in the beginning and 392.7 MB in the end (delta: 83.9 MB). Free memory was 228.5 MB in the beginning and 106.7 MB in the end (delta: 121.8 MB). Peak memory consumption was 221.4 MB. Max. memory is 5.3 GB. [2018-07-21 20:59:11,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 1306.11 ms. Allocated memory was 392.7 MB in the beginning and 672.7 MB in the end (delta: 280.0 MB). Free memory was 106.7 MB in the beginning and 508.3 MB in the end (delta: -401.6 MB). Peak memory consumption was 81.0 MB. Max. memory is 5.3 GB. [2018-07-21 20:59:11,902 INFO L168 Benchmark]: Boogie Preprocessor took 782.03 ms. Allocated memory is still 672.7 MB. Free memory was 508.3 MB in the beginning and 408.3 MB in the end (delta: 100.0 MB). Peak memory consumption was 100.0 MB. Max. memory is 5.3 GB. [2018-07-21 20:59:11,903 INFO L168 Benchmark]: RCFGBuilder took 18702.13 ms. Allocated memory was 672.7 MB in the beginning and 1.0 GB in the end (delta: 360.7 MB). Free memory was 408.3 MB in the beginning and 813.3 MB in the end (delta: -404.9 MB). Peak memory consumption was 346.0 MB. Max. memory is 5.3 GB. [2018-07-21 20:59:11,903 INFO L168 Benchmark]: TraceAbstraction took 198240.95 ms. Allocated memory was 1.0 GB in the beginning and 2.9 GB in the end (delta: 1.8 GB). Free memory was 813.3 MB in the beginning and 353.9 MB in the end (delta: 459.4 MB). Peak memory consumption was 2.3 GB. Max. memory is 5.3 GB. [2018-07-21 20:59:11,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 308.8 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4918.24 ms. Allocated memory was 308.8 MB in the beginning and 392.7 MB in the end (delta: 83.9 MB). Free memory was 228.5 MB in the beginning and 106.7 MB in the end (delta: 121.8 MB). Peak memory consumption was 221.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 1306.11 ms. Allocated memory was 392.7 MB in the beginning and 672.7 MB in the end (delta: 280.0 MB). Free memory was 106.7 MB in the beginning and 508.3 MB in the end (delta: -401.6 MB). Peak memory consumption was 81.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 782.03 ms. Allocated memory is still 672.7 MB. Free memory was 508.3 MB in the beginning and 408.3 MB in the end (delta: 100.0 MB). Peak memory consumption was 100.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 18702.13 ms. Allocated memory was 672.7 MB in the beginning and 1.0 GB in the end (delta: 360.7 MB). Free memory was 408.3 MB in the beginning and 813.3 MB in the end (delta: -404.9 MB). Peak memory consumption was 346.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 198240.95 ms. Allocated memory was 1.0 GB in the beginning and 2.9 GB in the end (delta: 1.8 GB). Free memory was 813.3 MB in the beginning and 353.9 MB in the end (delta: 459.4 MB). Peak memory consumption was 2.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 202]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 202). Cancelled while BasicCegarLoop was analyzing trace of length 956 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 198.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 133.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3424 SDtfs, 39906 SDslu, 4124 SDs, 0 SdLazy, 55826 SolverSat, 14037 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 117.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136206occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 50.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1631 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 921 NumberOfCodeBlocks, 921 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 915 ConstructedInterpolants, 0 QuantifiedInterpolants, 664637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 310/310 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_label04_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_20-59-11-926.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem19_label04_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_20-59-11-926.csv Completed graceful shutdown