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_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:47:25,627 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:47:25,628 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:47:25,648 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:47:25,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:47:25,650 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:47:25,651 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:47:25,653 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:47:25,657 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:47:25,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:47:25,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:47:25,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:47:25,660 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:47:25,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:47:25,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:47:25,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:47:25,664 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:47:25,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:47:25,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:47:25,669 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:47:25,670 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:47:25,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:47:25,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:47:25,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:47:25,675 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:47:25,676 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:47:25,677 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:47:25,677 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:47:25,678 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:47:25,679 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:47:25,680 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:47:25,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:47:25,681 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:47:25,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:47:25,682 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:47:25,683 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:47:25,683 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 12:47:25,709 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:47:25,710 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:47:25,711 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:47:25,711 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:47:25,711 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:47:25,711 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:47:25,711 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:47:25,712 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:47:25,712 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:47:25,712 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:47:25,712 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:47:25,713 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:47:25,713 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:47:25,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:47:25,713 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:47:25,714 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:47:25,714 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:47:25,714 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:47:25,714 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:47:25,715 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:47:25,715 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:47:25,715 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:47:25,716 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:47:25,716 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:47:25,716 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:47:25,716 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:47:25,717 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:47:25,717 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:47:25,717 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:47:25,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:47:25,717 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:47:25,718 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:47:25,718 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:47:25,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:47:25,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:47:25,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:47:25,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:47:25,804 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:47:25,805 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label34_true-unreach-call.c [2018-09-10 12:47:26,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513cd0c68/b459003178c14953a39989d0d22539c3/FLAGfb83e99a8 [2018-09-10 12:47:26,758 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:47:26,759 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label34_true-unreach-call.c [2018-09-10 12:47:26,820 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513cd0c68/b459003178c14953a39989d0d22539c3/FLAGfb83e99a8 [2018-09-10 12:47:26,838 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513cd0c68/b459003178c14953a39989d0d22539c3 [2018-09-10 12:47:26,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:47:26,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:47:26,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:47:26,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:47:26,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:47:26,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:47:26" (1/1) ... [2018-09-10 12:47:26,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782dc4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:26, skipping insertion in model container [2018-09-10 12:47:26,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:47:26" (1/1) ... [2018-09-10 12:47:27,402 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:47:29,182 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:47:29,201 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:47:30,363 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:47:30,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30 WrapperNode [2018-09-10 12:47:30,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:47:30,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:47:30,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:47:30,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:47:30,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:30,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:31,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:47:31,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:47:31,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:47:31,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:47:32,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (1/1) ... [2018-09-10 12:47:32,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:47:32,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:47:32,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:47:32,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:47:32,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (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 12:47:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:47:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:47:33,037 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 12:47:33,037 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 12:47:33,037 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 12:47:33,037 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 12:47:33,038 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 12:47:33,038 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 12:47:33,038 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 12:47:33,038 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 12:47:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:47:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:47:33,039 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 12:47:33,039 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 12:47:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:47:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:47:33,039 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 12:47:33,040 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 12:47:53,767 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:47:53,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:47:53 BoogieIcfgContainer [2018-09-10 12:47:53,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:47:53,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:47:53,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:47:53,772 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:47:53,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:47:26" (1/3) ... [2018-09-10 12:47:53,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256d1263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:47:53, skipping insertion in model container [2018-09-10 12:47:53,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:47:30" (2/3) ... [2018-09-10 12:47:53,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256d1263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:47:53, skipping insertion in model container [2018-09-10 12:47:53,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:47:53" (3/3) ... [2018-09-10 12:47:53,776 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label34_true-unreach-call.c [2018-09-10 12:47:53,785 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:47:53,794 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:47:53,861 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:47:53,862 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:47:53,862 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:47:53,863 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:47:53,863 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:47:53,863 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:47:53,863 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:47:53,863 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:47:53,863 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:47:53,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-10 12:47:53,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-10 12:47:53,929 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:47:53,930 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, 1] [2018-09-10 12:47:53,931 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 12:47:53,936 INFO L82 PathProgramCache]: Analyzing trace with hash 408283688, now seen corresponding path program 1 times [2018-09-10 12:47:53,938 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:47:53,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:53,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:47:53,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:47:53,989 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:47:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:47:54,459 WARN L175 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:47:54,571 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 12:47:54,573 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:47:54,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 12:47:54,574 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:47:54,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:47:54,598 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:47:54,598 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:47:54,601 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-10 12:48:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:48:12,761 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-09-10 12:48:12,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:48:12,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-09-10 12:48:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:48:12,819 INFO L225 Difference]: With dead ends: 4999 [2018-09-10 12:48:12,819 INFO L226 Difference]: Without dead ends: 3219 [2018-09-10 12:48:12,838 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:48:12,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-09-10 12:48:13,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-09-10 12:48:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-10 12:48:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-09-10 12:48:13,035 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 57 [2018-09-10 12:48:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:48:13,035 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-09-10 12:48:13,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:48:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-09-10 12:48:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-10 12:48:13,049 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:48:13,050 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, 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] [2018-09-10 12:48:13,050 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 12:48:13,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2002605040, now seen corresponding path program 1 times [2018-09-10 12:48:13,051 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:48:13,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:13,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:48:13,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:13,053 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:48:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:48:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:48:13,599 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:48:13,600 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:48:13,600 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:48:13,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:48:13,603 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:48:13,603 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:48:13,604 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-09-10 12:48:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:48:51,437 INFO L93 Difference]: Finished difference Result 9676 states and 17669 transitions. [2018-09-10 12:48:51,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:48:51,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-09-10 12:48:51,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:48:51,477 INFO L225 Difference]: With dead ends: 9676 [2018-09-10 12:48:51,478 INFO L226 Difference]: Without dead ends: 6467 [2018-09-10 12:48:51,489 INFO L604 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 [2018-09-10 12:48:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2018-09-10 12:48:51,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 6359. [2018-09-10 12:48:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6359 states. [2018-09-10 12:48:51,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6359 states to 6359 states and 9930 transitions. [2018-09-10 12:48:51,655 INFO L78 Accepts]: Start accepts. Automaton has 6359 states and 9930 transitions. Word has length 129 [2018-09-10 12:48:51,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:48:51,655 INFO L480 AbstractCegarLoop]: Abstraction has 6359 states and 9930 transitions. [2018-09-10 12:48:51,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:48:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6359 states and 9930 transitions. [2018-09-10 12:48:51,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-10 12:48:51,660 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:48:51,660 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, 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 12:48:51,661 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 12:48:51,661 INFO L82 PathProgramCache]: Analyzing trace with hash 938956480, now seen corresponding path program 1 times [2018-09-10 12:48:51,661 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:48:51,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:51,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:48:51,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:48:51,663 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:48:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:48:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:48:51,888 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:48:51,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:48:51,888 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:48:51,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:48:51,889 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:48:51,889 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:48:51,889 INFO L87 Difference]: Start difference. First operand 6359 states and 9930 transitions. Second operand 6 states. [2018-09-10 12:49:16,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:49:16,872 INFO L93 Difference]: Finished difference Result 18727 states and 29412 transitions. [2018-09-10 12:49:16,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:49:16,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-09-10 12:49:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:49:17,139 INFO L225 Difference]: With dead ends: 18727 [2018-09-10 12:49:17,139 INFO L226 Difference]: Without dead ends: 12374 [2018-09-10 12:49:17,159 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 12:49:17,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12374 states. [2018-09-10 12:49:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12374 to 12259. [2018-09-10 12:49:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12259 states. [2018-09-10 12:49:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12259 states to 12259 states and 17244 transitions. [2018-09-10 12:49:17,443 INFO L78 Accepts]: Start accepts. Automaton has 12259 states and 17244 transitions. Word has length 130 [2018-09-10 12:49:17,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:49:17,444 INFO L480 AbstractCegarLoop]: Abstraction has 12259 states and 17244 transitions. [2018-09-10 12:49:17,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:49:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 12259 states and 17244 transitions. [2018-09-10 12:49:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-10 12:49:17,450 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:49:17,450 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:49:17,450 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 12:49:17,450 INFO L82 PathProgramCache]: Analyzing trace with hash -36942670, now seen corresponding path program 1 times [2018-09-10 12:49:17,451 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:49:17,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:49:17,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:49:17,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:49:17,453 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:49:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:49:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:49:17,945 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:49:17,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:49:17,946 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:49:17,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:49:17,946 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:49:17,947 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:49:17,947 INFO L87 Difference]: Start difference. First operand 12259 states and 17244 transitions. Second operand 6 states. [2018-09-10 12:50:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:50:02,740 INFO L93 Difference]: Finished difference Result 49560 states and 76033 transitions. [2018-09-10 12:50:02,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 12:50:02,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-09-10 12:50:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:50:02,916 INFO L225 Difference]: With dead ends: 49560 [2018-09-10 12:50:02,917 INFO L226 Difference]: Without dead ends: 37307 [2018-09-10 12:50:03,005 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:50:03,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37307 states. [2018-09-10 12:50:03,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37307 to 36977. [2018-09-10 12:50:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36977 states. [2018-09-10 12:50:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36977 states to 36977 states and 50131 transitions. [2018-09-10 12:50:03,901 INFO L78 Accepts]: Start accepts. Automaton has 36977 states and 50131 transitions. Word has length 147 [2018-09-10 12:50:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:50:03,901 INFO L480 AbstractCegarLoop]: Abstraction has 36977 states and 50131 transitions. [2018-09-10 12:50:03,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:50:03,902 INFO L276 IsEmpty]: Start isEmpty. Operand 36977 states and 50131 transitions. [2018-09-10 12:50:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-10 12:50:03,911 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:50:03,911 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, 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 12:50:03,911 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 12:50:03,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1635593612, now seen corresponding path program 1 times [2018-09-10 12:50:03,915 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:50:03,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:03,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:03,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:03,916 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:50:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 100 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:50:04,302 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:50:04,302 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 12:50:04,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:04,319 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:50:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:04,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:50:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-09-10 12:50:04,674 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:50:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 100 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:50:05,603 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:50:05,604 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-10 12:50:05,604 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:50:05,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:50:05,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:50:05,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:50:05,605 INFO L87 Difference]: Start difference. First operand 36977 states and 50131 transitions. Second operand 5 states. [2018-09-10 12:50:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:50:28,248 INFO L93 Difference]: Finished difference Result 112375 states and 160605 transitions. [2018-09-10 12:50:28,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:50:28,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2018-09-10 12:50:28,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:50:28,520 INFO L225 Difference]: With dead ends: 112375 [2018-09-10 12:50:28,520 INFO L226 Difference]: Without dead ends: 75404 [2018-09-10 12:50:28,597 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 422 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:50:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75404 states. [2018-09-10 12:50:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75404 to 73836. [2018-09-10 12:50:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73836 states. [2018-09-10 12:50:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73836 states to 73836 states and 98528 transitions. [2018-09-10 12:50:30,451 INFO L78 Accepts]: Start accepts. Automaton has 73836 states and 98528 transitions. Word has length 212 [2018-09-10 12:50:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:50:30,452 INFO L480 AbstractCegarLoop]: Abstraction has 73836 states and 98528 transitions. [2018-09-10 12:50:30,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:50:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 73836 states and 98528 transitions. [2018-09-10 12:50:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-09-10 12:50:30,459 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:50:30,459 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, 3, 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] [2018-09-10 12:50:30,460 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 12:50:30,460 INFO L82 PathProgramCache]: Analyzing trace with hash 748025450, now seen corresponding path program 1 times [2018-09-10 12:50:30,460 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:50:30,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:30,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:30,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:30,461 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:50:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:30,777 WARN L175 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:50:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 100 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:50:31,202 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:50:31,202 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 12:50:31,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:31,219 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:50:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:31,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:50:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-09-10 12:50:31,660 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:50:31,884 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 100 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:50:31,905 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:50:31,906 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 12:50:31,906 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:50:31,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:50:31,907 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:50:31,907 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:50:31,907 INFO L87 Difference]: Start difference. First operand 73836 states and 98528 transitions. Second operand 5 states. [2018-09-10 12:50:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:50:53,387 INFO L93 Difference]: Finished difference Result 167914 states and 240987 transitions. [2018-09-10 12:50:53,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:50:53,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2018-09-10 12:50:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:50:53,684 INFO L225 Difference]: With dead ends: 167914 [2018-09-10 12:50:53,684 INFO L226 Difference]: Without dead ends: 94084 [2018-09-10 12:50:53,829 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 450 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:50:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94084 states. [2018-09-10 12:50:56,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94084 to 92702. [2018-09-10 12:50:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92702 states. [2018-09-10 12:50:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92702 states to 92702 states and 124289 transitions. [2018-09-10 12:50:56,322 INFO L78 Accepts]: Start accepts. Automaton has 92702 states and 124289 transitions. Word has length 228 [2018-09-10 12:50:56,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:50:56,323 INFO L480 AbstractCegarLoop]: Abstraction has 92702 states and 124289 transitions. [2018-09-10 12:50:56,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:50:56,323 INFO L276 IsEmpty]: Start isEmpty. Operand 92702 states and 124289 transitions. [2018-09-10 12:50:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2018-09-10 12:50:56,354 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:50:56,355 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:56,355 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 12:50:56,355 INFO L82 PathProgramCache]: Analyzing trace with hash -977179680, now seen corresponding path program 1 times [2018-09-10 12:50:56,355 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:50:56,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:56,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:56,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:50:56,358 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:50:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 9 proven. 94 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-10 12:50:57,988 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:50:57,988 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 12:50:57,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:50:57,997 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:50:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:50:58,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:50:58,571 WARN L175 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-10 12:51:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-09-10 12:51:00,333 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:51:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 100 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:51:03,292 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:51:03,293 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 10] total 19 [2018-09-10 12:51:03,294 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:51:03,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-10 12:51:03,296 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-10 12:51:03,296 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2018-09-10 12:51:03,297 INFO L87 Difference]: Start difference. First operand 92702 states and 124289 transitions. Second operand 10 states. Received shutdown request... [2018-09-10 12:51:22,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-10 12:51:22,217 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:51:22,224 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:51:22,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:51:22 BoogieIcfgContainer [2018-09-10 12:51:22,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:51:22,225 INFO L168 Benchmark]: Toolchain (without parser) took 235374.27 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -107.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:51:22,226 INFO L168 Benchmark]: CDTParser took 0.19 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 12:51:22,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3976.37 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 208.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -140.9 MB). Peak memory consumption was 490.4 MB. Max. memory is 7.1 GB. [2018-09-10 12:51:22,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 338.15 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: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:51:22,229 INFO L168 Benchmark]: Boogie Preprocessor took 1801.55 ms. Allocated memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: 766.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.7 MB). Peak memory consumption was 125.5 MB. Max. memory is 7.1 GB. [2018-09-10 12:51:22,230 INFO L168 Benchmark]: RCFGBuilder took 20796.36 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 297.8 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 238.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:51:22,231 INFO L168 Benchmark]: TraceAbstraction took 208455.37 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 806.9 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 509.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-10 12:51:22,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 3976.37 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 208.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -140.9 MB). Peak memory consumption was 490.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 338.15 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: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1801.55 ms. Allocated memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: 766.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.7 MB). Peak memory consumption was 125.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20796.36 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 297.8 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 238.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 208455.37 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 806.9 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 509.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was constructing difference of abstraction (92702states) and FLOYD_HOARE automaton (currently 23 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (50690 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 208.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 190.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3501 SDtfs, 42658 SDslu, 5088 SDs, 0 SdLazy, 71734 SolverSat, 16277 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 166.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2444 GetRequests, 2360 SyntacticMatches, 10 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92702occurred in iteration=6, 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: 5.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 3507 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 2825 NumberOfCodeBlocks, 2825 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3993 ConstructedInterpolants, 0 QuantifiedInterpolants, 18612186 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1861 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 1304/1749 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_label34_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-51-22-252.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label34_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-51-22-252.csv Completed graceful shutdown