java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:43:35,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:43:35,608 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:43:35,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:43:35,626 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:43:35,627 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:43:35,628 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:43:35,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:43:35,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:43:35,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:43:35,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:43:35,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:43:35,636 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:43:35,637 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:43:35,638 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:43:35,639 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:43:35,640 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:43:35,642 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:43:35,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:43:35,646 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:43:35,647 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:43:35,648 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:43:35,650 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:43:35,650 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:43:35,651 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:43:35,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:43:35,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:43:35,653 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:43:35,654 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:43:35,655 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:43:35,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:43:35,656 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:43:35,657 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:43:35,657 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:43:35,658 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:43:35,659 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:43:35,659 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 12:43:35,680 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:43:35,680 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:43:35,681 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:43:35,685 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:43:35,686 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:43:35,686 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:43:35,686 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:43:35,686 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:43:35,686 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:43:35,687 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:43:35,687 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:43:35,688 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:43:35,688 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:43:35,688 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:43:35,689 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:43:35,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:43:35,689 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:43:35,690 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:43:35,690 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:43:35,690 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:43:35,690 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:43:35,690 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:43:35,691 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:43:35,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:43:35,691 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:43:35,691 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:43:35,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:43:35,693 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:43:35,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:43:35,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:43:35,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:43:35,694 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:43:35,694 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:43:35,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:43:35,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:43:35,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:43:35,793 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:43:35,793 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:43:35,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label09_true-unreach-call.c [2018-09-10 12:43:36,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a362eb78/368f3a1346ba4aa083ef66a4972a3769/FLAGd97f55295 [2018-09-10 12:43:36,747 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:43:36,748 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label09_true-unreach-call.c [2018-09-10 12:43:36,794 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a362eb78/368f3a1346ba4aa083ef66a4972a3769/FLAGd97f55295 [2018-09-10 12:43:36,809 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a362eb78/368f3a1346ba4aa083ef66a4972a3769 [2018-09-10 12:43:36,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:43:36,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:43:36,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:43:36,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:43:36,833 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:43:36,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:43:36" (1/1) ... [2018-09-10 12:43:36,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a96985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:36, skipping insertion in model container [2018-09-10 12:43:36,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:43:36" (1/1) ... [2018-09-10 12:43:37,284 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:43:38,951 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:43:38,970 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:43:40,127 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:43:40,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40 WrapperNode [2018-09-10 12:43:40,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:43:40,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:43:40,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:43:40,948 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:43:40,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:41,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:41,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:43:41,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:43:41,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:43:41,319 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:43:42,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:42,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:42,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:42,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:42,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:42,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:43,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... [2018-09-10 12:43:43,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:43:43,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:43:43,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:43:43,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:43:43,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:43:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:43:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:43:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-09-10 12:43:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-09-10 12:43:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 12:43:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 12:43:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-09-10 12:43:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-09-10 12:43:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 12:43:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 12:43:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:43:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:43:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 12:43:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 12:43:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:43:43,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:43:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 12:43:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 12:44:04,805 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:44:04,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:44:04 BoogieIcfgContainer [2018-09-10 12:44:04,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:44:04,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:44:04,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:44:04,810 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:44:04,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:43:36" (1/3) ... [2018-09-10 12:44:04,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce68dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:44:04, skipping insertion in model container [2018-09-10 12:44:04,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:43:40" (2/3) ... [2018-09-10 12:44:04,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce68dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:44:04, skipping insertion in model container [2018-09-10 12:44:04,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:44:04" (3/3) ... [2018-09-10 12:44:04,814 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label09_true-unreach-call.c [2018-09-10 12:44:04,824 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:44:04,834 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:44:04,903 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:44:04,903 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:44:04,904 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:44:04,904 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:44:04,904 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:44:04,904 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:44:04,904 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:44:04,904 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:44:04,904 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:44:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-10 12:44:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-10 12:44:04,966 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:44:04,968 INFO L376 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] [2018-09-10 12:44:04,969 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:44:04,974 INFO L82 PathProgramCache]: Analyzing trace with hash 705906926, now seen corresponding path program 1 times [2018-09-10 12:44:04,977 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:44:05,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:44:05,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:44:05,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:44:05,033 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:44:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:44:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:44:05,488 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:44:05,489 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:44:05,489 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:44:05,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:44:05,511 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:44:05,512 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:44:05,514 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-09-10 12:44:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:44:32,298 INFO L93 Difference]: Finished difference Result 6510 states and 12381 transitions. [2018-09-10 12:44:32,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:44:32,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-09-10 12:44:32,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:44:32,365 INFO L225 Difference]: With dead ends: 6510 [2018-09-10 12:44:32,365 INFO L226 Difference]: Without dead ends: 4726 [2018-09-10 12:44:32,379 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:44:32,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2018-09-10 12:44:32,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4687. [2018-09-10 12:44:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4687 states. [2018-09-10 12:44:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 7413 transitions. [2018-09-10 12:44:32,654 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 7413 transitions. Word has length 56 [2018-09-10 12:44:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:44:32,655 INFO L480 AbstractCegarLoop]: Abstraction has 4687 states and 7413 transitions. [2018-09-10 12:44:32,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:44:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 7413 transitions. [2018-09-10 12:44:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-10 12:44:32,668 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:44:32,668 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:44:32,669 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:44:32,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1294215997, now seen corresponding path program 1 times [2018-09-10 12:44:32,669 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:44:32,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:44:32,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:44:32,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:44:32,673 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:44:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:44:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:44:33,097 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:44:33,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:44:33,097 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:44:33,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:44:33,100 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:44:33,100 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:44:33,100 INFO L87 Difference]: Start difference. First operand 4687 states and 7413 transitions. Second operand 6 states. [2018-09-10 12:45:11,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:45:11,536 INFO L93 Difference]: Finished difference Result 14138 states and 22630 transitions. [2018-09-10 12:45:11,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:45:11,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-09-10 12:45:11,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:45:11,587 INFO L225 Difference]: With dead ends: 14138 [2018-09-10 12:45:11,587 INFO L226 Difference]: Without dead ends: 9457 [2018-09-10 12:45:11,601 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:45:11,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9457 states. [2018-09-10 12:45:11,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9457 to 9310. [2018-09-10 12:45:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9310 states. [2018-09-10 12:45:11,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9310 states to 9310 states and 13127 transitions. [2018-09-10 12:45:11,826 INFO L78 Accepts]: Start accepts. Automaton has 9310 states and 13127 transitions. Word has length 128 [2018-09-10 12:45:11,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:45:11,826 INFO L480 AbstractCegarLoop]: Abstraction has 9310 states and 13127 transitions. [2018-09-10 12:45:11,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:45:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 9310 states and 13127 transitions. [2018-09-10 12:45:11,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-10 12:45:11,831 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:45:11,831 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:45:11,832 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:45:11,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1359304614, now seen corresponding path program 1 times [2018-09-10 12:45:11,832 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:45:11,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:45:11,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:45:11,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:45:11,834 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:45:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:45:12,059 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:45:12,059 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:45:12,059 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:45:12,060 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:45:12,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:45:12,060 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:45:12,061 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:45:12,061 INFO L87 Difference]: Start difference. First operand 9310 states and 13127 transitions. Second operand 6 states. [2018-09-10 12:45:40,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:45:40,298 INFO L93 Difference]: Finished difference Result 36359 states and 53322 transitions. [2018-09-10 12:45:40,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:45:40,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-09-10 12:45:40,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:45:40,419 INFO L225 Difference]: With dead ends: 36359 [2018-09-10 12:45:40,420 INFO L226 Difference]: Without dead ends: 27055 [2018-09-10 12:45:40,465 INFO L604 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 [2018-09-10 12:45:40,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27055 states. [2018-09-10 12:45:41,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27055 to 26796. [2018-09-10 12:45:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26796 states. [2018-09-10 12:45:41,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26796 states to 26796 states and 36599 transitions. [2018-09-10 12:45:41,143 INFO L78 Accepts]: Start accepts. Automaton has 26796 states and 36599 transitions. Word has length 130 [2018-09-10 12:45:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:45:41,144 INFO L480 AbstractCegarLoop]: Abstraction has 26796 states and 36599 transitions. [2018-09-10 12:45:41,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:45:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 26796 states and 36599 transitions. [2018-09-10 12:45:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-09-10 12:45:41,154 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:45:41,155 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:45:41,155 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:45:41,155 INFO L82 PathProgramCache]: Analyzing trace with hash 114698359, now seen corresponding path program 1 times [2018-09-10 12:45:41,159 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:45:41,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:45:41,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:45:41,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:45:41,161 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:45:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:45:41,505 WARN L175 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:45:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 98 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:45:41,922 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:45:41,923 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:45:41,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:45:41,942 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:45:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:45:42,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:45:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-10 12:45:42,579 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:45:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 98 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:45:43,094 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:45:43,095 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 12:45:43,095 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:45:43,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:45:43,096 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:45:43,096 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:45:43,096 INFO L87 Difference]: Start difference. First operand 26796 states and 36599 transitions. Second operand 5 states. [2018-09-10 12:46:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:46:07,830 INFO L93 Difference]: Finished difference Result 70525 states and 103368 transitions. [2018-09-10 12:46:07,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:46:07,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2018-09-10 12:46:07,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:46:08,076 INFO L225 Difference]: With dead ends: 70525 [2018-09-10 12:46:08,076 INFO L226 Difference]: Without dead ends: 43735 [2018-09-10 12:46:08,170 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 412 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:46:08,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43735 states. [2018-09-10 12:46:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43735 to 43319. [2018-09-10 12:46:09,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43319 states. [2018-09-10 12:46:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43319 states to 43319 states and 61545 transitions. [2018-09-10 12:46:09,794 INFO L78 Accepts]: Start accepts. Automaton has 43319 states and 61545 transitions. Word has length 209 [2018-09-10 12:46:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:46:09,794 INFO L480 AbstractCegarLoop]: Abstraction has 43319 states and 61545 transitions. [2018-09-10 12:46:09,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:46:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 43319 states and 61545 transitions. [2018-09-10 12:46:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-10 12:46:09,806 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:46:09,807 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:46:09,807 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:46:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2084332957, now seen corresponding path program 1 times [2018-09-10 12:46:09,809 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:46:09,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:46:09,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:46:09,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:46:09,812 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:46:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:46:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:46:10,343 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:46:10,344 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:46:10,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:46:10,361 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:46:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:46:10,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:46:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-10 12:46:10,634 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:46:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 12:46:10,913 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:46:10,913 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-09-10 12:46:10,913 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:46:10,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:46:10,915 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:46:10,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:46:10,915 INFO L87 Difference]: Start difference. First operand 43319 states and 61545 transitions. Second operand 3 states. [2018-09-10 12:46:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:46:26,275 INFO L93 Difference]: Finished difference Result 105090 states and 152879 transitions. [2018-09-10 12:46:26,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:46:26,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2018-09-10 12:46:26,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:46:26,487 INFO L225 Difference]: With dead ends: 105090 [2018-09-10 12:46:26,487 INFO L226 Difference]: Without dead ends: 61777 [2018-09-10 12:46:26,570 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-10 12:46:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61777 states. [2018-09-10 12:46:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61777 to 61701. [2018-09-10 12:46:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61701 states. [2018-09-10 12:46:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61701 states to 61701 states and 84476 transitions. [2018-09-10 12:46:28,137 INFO L78 Accepts]: Start accepts. Automaton has 61701 states and 84476 transitions. Word has length 216 [2018-09-10 12:46:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:46:28,138 INFO L480 AbstractCegarLoop]: Abstraction has 61701 states and 84476 transitions. [2018-09-10 12:46:28,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:46:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 61701 states and 84476 transitions. [2018-09-10 12:46:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-10 12:46:28,147 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:46:28,147 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:46:28,148 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:46:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash -529025382, now seen corresponding path program 1 times [2018-09-10 12:46:28,148 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:46:28,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:46:28,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:46:28,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:46:28,150 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:46:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:46:28,436 WARN L175 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:46:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:46:28,497 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:46:28,497 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:46:28,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:46:28,510 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:46:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:46:28,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:46:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-10 12:46:28,671 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:46:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-10 12:46:28,748 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:46:28,748 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-10 12:46:28,748 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:46:28,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:46:28,749 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:46:28,749 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:46:28,750 INFO L87 Difference]: Start difference. First operand 61701 states and 84476 transitions. Second operand 3 states. [2018-09-10 12:46:46,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:46:46,817 INFO L93 Difference]: Finished difference Result 146285 states and 207107 transitions. [2018-09-10 12:46:46,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:46:46,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-09-10 12:46:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:46:47,855 INFO L225 Difference]: With dead ends: 146285 [2018-09-10 12:46:47,856 INFO L226 Difference]: Without dead ends: 84590 [2018-09-10 12:46:47,955 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 437 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:46:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84590 states. [2018-09-10 12:46:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84590 to 84464. [2018-09-10 12:46:49,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84464 states. [2018-09-10 12:46:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84464 states to 84464 states and 112614 transitions. [2018-09-10 12:46:49,355 INFO L78 Accepts]: Start accepts. Automaton has 84464 states and 112614 transitions. Word has length 219 [2018-09-10 12:46:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:46:49,355 INFO L480 AbstractCegarLoop]: Abstraction has 84464 states and 112614 transitions. [2018-09-10 12:46:49,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:46:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 84464 states and 112614 transitions. [2018-09-10 12:46:49,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-09-10 12:46:49,365 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:46:49,365 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:46:49,365 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:46:49,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1978536822, now seen corresponding path program 1 times [2018-09-10 12:46:49,366 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:46:49,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:46:49,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:46:49,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:46:49,368 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:46:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:46:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 98 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:46:49,656 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:46:49,656 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:46:49,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:46:49,663 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:46:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:46:49,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:46:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-10 12:46:49,903 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:46:50,786 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 98 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:46:50,817 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:46:50,818 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-10 12:46:50,818 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:46:50,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:46:50,819 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:46:50,819 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:46:50,819 INFO L87 Difference]: Start difference. First operand 84464 states and 112614 transitions. Second operand 5 states. [2018-09-10 12:47:17,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:47:17,301 INFO L93 Difference]: Finished difference Result 226230 states and 316337 transitions. [2018-09-10 12:47:17,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:47:17,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2018-09-10 12:47:17,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:47:17,827 INFO L225 Difference]: With dead ends: 226230 [2018-09-10 12:47:17,827 INFO L226 Difference]: Without dead ends: 141772 [2018-09-10 12:47:17,994 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 448 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:47:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141772 states. [2018-09-10 12:47:20,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141772 to 139986. [2018-09-10 12:47:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139986 states. [2018-09-10 12:47:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139986 states to 139986 states and 188456 transitions. [2018-09-10 12:47:21,317 INFO L78 Accepts]: Start accepts. Automaton has 139986 states and 188456 transitions. Word has length 225 [2018-09-10 12:47:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:47:21,317 INFO L480 AbstractCegarLoop]: Abstraction has 139986 states and 188456 transitions. [2018-09-10 12:47:21,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:47:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 139986 states and 188456 transitions. [2018-09-10 12:47:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1093 [2018-09-10 12:47:21,381 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:47:21,382 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:47:21,382 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:47:21,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1167873453, now seen corresponding path program 1 times [2018-09-10 12:47:21,383 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:47:21,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:21,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:47:21,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:21,384 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:47:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:47:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 416 proven. 192 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2018-09-10 12:47:23,766 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:47:23,766 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:47:23,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:47:23,774 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:47:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:47:24,137 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:47:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 698 proven. 2 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-09-10 12:47:25,759 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:47:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 416 proven. 192 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2018-09-10 12:47:27,016 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:47:27,016 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:47:27,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:47:27,033 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Received shutdown request... [2018-09-10 12:47:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:47:27,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:47:27,904 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-10 12:47:28,105 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:47:28,106 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:47:28,112 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:47:28,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:47:28 BoogieIcfgContainer [2018-09-10 12:47:28,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:47:28,113 INFO L168 Benchmark]: Toolchain (without parser) took 231292.07 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -353.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-10 12:47:28,114 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:47:28,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4121.19 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 201.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -123.8 MB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. [2018-09-10 12:47:28,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 371.17 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 7.1 GB. [2018-09-10 12:47:28,116 INFO L168 Benchmark]: Boogie Preprocessor took 1944.54 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 879.8 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -882.1 MB). Peak memory consumption was 127.0 MB. Max. memory is 7.1 GB. [2018-09-10 12:47:28,117 INFO L168 Benchmark]: RCFGBuilder took 21542.15 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 235.4 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 276.6 MB). Peak memory consumption was 999.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:47:28,118 INFO L168 Benchmark]: TraceAbstraction took 203305.82 ms. Allocated memory was 2.8 GB in the beginning and 3.5 GB in the end (delta: 688.4 MB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 313.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:47:28,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 4121.19 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 201.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -123.8 MB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 371.17 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1944.54 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 879.8 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -882.1 MB). Peak memory consumption was 127.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 21542.15 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 235.4 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 276.6 MB). Peak memory consumption was 999.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203305.82 ms. Allocated memory was 2.8 GB in the beginning and 3.5 GB in the end (delta: 688.4 MB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 313.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was analyzing trace of length 1093 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 203.2s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 180.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8608 SDtfs, 36057 SDslu, 4562 SDs, 0 SdLazy, 57423 SolverSat, 16459 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 156.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1792 GetRequests, 1739 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139986occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 9.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2849 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2052 NumberOfCodeBlocks, 2052 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2906 ConstructedInterpolants, 0 QuantifiedInterpolants, 1296189 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1718 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 1736/2156 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label09_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-47-28-142.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label09_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-47-28-142.csv Completed graceful shutdown