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_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-07 13:23:50,789 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-07 13:23:50,792 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-07 13:23:50,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-07 13:23:50,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-07 13:23:50,814 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-07 13:23:50,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-07 13:23:50,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-07 13:23:50,822 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-07 13:23:50,828 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-07 13:23:50,829 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-07 13:23:50,832 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-07 13:23:50,833 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-07 13:23:50,834 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-07 13:23:50,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-07 13:23:50,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-07 13:23:50,839 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-07 13:23:50,841 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-07 13:23:50,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-07 13:23:50,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-07 13:23:50,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-07 13:23:50,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-07 13:23:50,848 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-07 13:23:50,848 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-07 13:23:50,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-07 13:23:50,849 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-07 13:23:50,850 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-07 13:23:50,851 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-07 13:23:50,853 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-07 13:23:50,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-07 13:23:50,854 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-07 13:23:50,855 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-07 13:23:50,855 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-07 13:23:50,858 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-07 13:23:50,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-07 13:23:50,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-07 13:23:50,860 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 [2018-08-07 13:23:50,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-07 13:23:50,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-07 13:23:50,890 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-07 13:23:50,891 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-07 13:23:50,891 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-07 13:23:50,891 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-07 13:23:50,891 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-07 13:23:50,891 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-07 13:23:50,892 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-07 13:23:50,892 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-07 13:23:50,892 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-07 13:23:50,893 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-07 13:23:50,893 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-07 13:23:50,894 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-07 13:23:50,894 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-07 13:23:50,894 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-07 13:23:50,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-07 13:23:50,896 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-07 13:23:50,896 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-07 13:23:50,896 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-07 13:23:50,897 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-07 13:23:50,897 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-07 13:23:50,897 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-07 13:23:50,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 13:23:50,897 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-07 13:23:50,898 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-07 13:23:50,898 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-07 13:23:50,898 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-08-07 13:23:50,898 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-07 13:23:50,898 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-07 13:23:50,899 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-07 13:23:50,899 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-07 13:23:50,899 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-07 13:23:50,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-07 13:23:50,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-07 13:23:50,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-07 13:23:50,980 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-07 13:23:50,981 INFO L276 PluginConnector]: CDTParser initialized [2018-08-07 13:23:50,982 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label37_true-unreach-call.c [2018-08-07 13:23:51,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364470979/e784db7f0ec34561a2c6d1337553b3db/FLAG02f47af66 [2018-08-07 13:23:51,909 INFO L276 CDTParser]: Found 1 translation units. [2018-08-07 13:23:51,910 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label37_true-unreach-call.c [2018-08-07 13:23:51,960 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364470979/e784db7f0ec34561a2c6d1337553b3db/FLAG02f47af66 [2018-08-07 13:23:51,982 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364470979/e784db7f0ec34561a2c6d1337553b3db [2018-08-07 13:23:51,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-07 13:23:51,997 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-07 13:23:51,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-07 13:23:51,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-07 13:23:52,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-07 13:23:52,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 01:23:51" (1/1) ... [2018-08-07 13:23:52,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad4346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:52, skipping insertion in model container [2018-08-07 13:23:52,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 01:23:51" (1/1) ... [2018-08-07 13:23:52,459 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-07 13:23:54,187 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 13:23:54,204 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-07 13:23:55,272 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 13:23:56,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56 WrapperNode [2018-08-07 13:23:56,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-07 13:23:56,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-07 13:23:56,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-07 13:23:56,038 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-07 13:23:56,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:56,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:56,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-07 13:23:56,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-07 13:23:56,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-07 13:23:56,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-07 13:23:57,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:57,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:57,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:57,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:57,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:58,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:58,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (1/1) ... [2018-08-07 13:23:58,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-07 13:23:58,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-07 13:23:58,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-07 13:23:58,228 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-07 13:23:58,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (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 [2018-08-07 13:23:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-07 13:23:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-07 13:23:58,301 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 [2018-08-07 13:23:58,301 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 [2018-08-07 13:23:58,301 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 [2018-08-07 13:23:58,301 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 [2018-08-07 13:23:58,301 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 [2018-08-07 13:23:58,302 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 [2018-08-07 13:23:58,302 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 [2018-08-07 13:23:58,302 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 [2018-08-07 13:23:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-07 13:23:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-07 13:23:58,303 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 [2018-08-07 13:23:58,303 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 [2018-08-07 13:23:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-07 13:23:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-07 13:23:58,304 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 [2018-08-07 13:23:58,304 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 [2018-08-07 13:24:19,031 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-07 13:24:19,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:24:19 BoogieIcfgContainer [2018-08-07 13:24:19,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-07 13:24:19,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-07 13:24:19,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-07 13:24:19,036 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-07 13:24:19,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 01:23:51" (1/3) ... [2018-08-07 13:24:19,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad26a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 01:24:19, skipping insertion in model container [2018-08-07 13:24:19,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:23:56" (2/3) ... [2018-08-07 13:24:19,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad26a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 01:24:19, skipping insertion in model container [2018-08-07 13:24:19,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:24:19" (3/3) ... [2018-08-07 13:24:19,039 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label37_true-unreach-call.c [2018-08-07 13:24:19,049 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-07 13:24:19,060 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-07 13:24:19,128 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-07 13:24:19,128 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-07 13:24:19,129 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-07 13:24:19,129 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-07 13:24:19,129 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-07 13:24:19,129 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-07 13:24:19,129 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-07 13:24:19,129 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-07 13:24:19,129 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-07 13:24:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-08-07 13:24:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-08-07 13:24:19,188 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:24:19,189 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] [2018-08-07 13:24:19,191 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]=== [2018-08-07 13:24:19,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1483591544, now seen corresponding path program 1 times [2018-08-07 13:24:19,199 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:24:19,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:19,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:24:19,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:19,250 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:24:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:24:19,694 WARN L170 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 13:24:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:24:19,819 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:24:19,819 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-07 13:24:19,820 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:24:19,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 13:24:19,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 13:24:19,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 13:24:19,846 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-08-07 13:24:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:24:38,662 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-08-07 13:24:38,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 13:24:38,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-08-07 13:24:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:24:38,709 INFO L225 Difference]: With dead ends: 4999 [2018-08-07 13:24:38,709 INFO L226 Difference]: Without dead ends: 3219 [2018-08-07 13:24:38,725 INFO L603 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 [2018-08-07 13:24:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-08-07 13:24:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-08-07 13:24:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-08-07 13:24:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-08-07 13:24:38,925 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 45 [2018-08-07 13:24:38,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:24:38,926 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-08-07 13:24:38,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 13:24:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-08-07 13:24:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-08-07 13:24:38,933 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:24:38,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:24:38,934 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]=== [2018-08-07 13:24:38,934 INFO L82 PathProgramCache]: Analyzing trace with hash 157539840, now seen corresponding path program 1 times [2018-08-07 13:24:38,934 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:24:38,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:38,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:24:38,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:38,936 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:24:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:24:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:24:39,249 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:24:39,249 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 13:24:39,249 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:24:39,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 13:24:39,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 13:24:39,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-08-07 13:24:39,252 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-08-07 13:25:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:25:15,556 INFO L93 Difference]: Finished difference Result 9679 states and 17673 transitions. [2018-08-07 13:25:15,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-07 13:25:15,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-08-07 13:25:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:25:15,621 INFO L225 Difference]: With dead ends: 9679 [2018-08-07 13:25:15,621 INFO L226 Difference]: Without dead ends: 6470 [2018-08-07 13:25:15,632 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-08-07 13:25:15,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2018-08-07 13:25:15,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 6362. [2018-08-07 13:25:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6362 states. [2018-08-07 13:25:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6362 states to 6362 states and 9934 transitions. [2018-08-07 13:25:15,837 INFO L78 Accepts]: Start accepts. Automaton has 6362 states and 9934 transitions. Word has length 117 [2018-08-07 13:25:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:25:15,838 INFO L480 AbstractCegarLoop]: Abstraction has 6362 states and 9934 transitions. [2018-08-07 13:25:15,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 13:25:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6362 states and 9934 transitions. [2018-08-07 13:25:15,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-08-07 13:25:15,850 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:25:15,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:25:15,850 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]=== [2018-08-07 13:25:15,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1787936944, now seen corresponding path program 1 times [2018-08-07 13:25:15,851 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:25:15,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:15,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:25:15,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:15,856 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:25:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:25:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:25:16,148 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:25:16,148 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 13:25:16,148 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:25:16,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 13:25:16,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 13:25:16,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 13:25:16,150 INFO L87 Difference]: Start difference. First operand 6362 states and 9934 transitions. Second operand 6 states. [2018-08-07 13:25:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:25:39,482 INFO L93 Difference]: Finished difference Result 20125 states and 31386 transitions. [2018-08-07 13:25:39,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 13:25:39,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-08-07 13:25:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:25:39,543 INFO L225 Difference]: With dead ends: 20125 [2018-08-07 13:25:39,543 INFO L226 Difference]: Without dead ends: 13769 [2018-08-07 13:25:39,565 INFO L603 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 [2018-08-07 13:25:39,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13769 states. [2018-08-07 13:25:39,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13769 to 13660. [2018-08-07 13:25:39,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13660 states. [2018-08-07 13:25:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13660 states to 13660 states and 19193 transitions. [2018-08-07 13:25:39,901 INFO L78 Accepts]: Start accepts. Automaton has 13660 states and 19193 transitions. Word has length 118 [2018-08-07 13:25:39,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:25:39,902 INFO L480 AbstractCegarLoop]: Abstraction has 13660 states and 19193 transitions. [2018-08-07 13:25:39,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 13:25:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13660 states and 19193 transitions. [2018-08-07 13:25:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-08-07 13:25:39,905 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:25:39,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:25:39,906 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]=== [2018-08-07 13:25:39,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1445706178, now seen corresponding path program 1 times [2018-08-07 13:25:39,907 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:25:39,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:39,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:25:39,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:39,908 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:25:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:25:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:25:40,395 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:25:40,395 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 13:25:40,395 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:25:40,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 13:25:40,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 13:25:40,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-08-07 13:25:40,396 INFO L87 Difference]: Start difference. First operand 13660 states and 19193 transitions. Second operand 6 states. [2018-08-07 13:26:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:26:34,074 INFO L93 Difference]: Finished difference Result 52368 states and 80638 transitions. [2018-08-07 13:26:34,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-07 13:26:34,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-08-07 13:26:34,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:26:34,228 INFO L225 Difference]: With dead ends: 52368 [2018-08-07 13:26:34,228 INFO L226 Difference]: Without dead ends: 38714 [2018-08-07 13:26:34,305 INFO L603 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 [2018-08-07 13:26:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38714 states. [2018-08-07 13:26:35,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38714 to 38372. [2018-08-07 13:26:35,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38372 states. [2018-08-07 13:26:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38372 states to 38372 states and 52531 transitions. [2018-08-07 13:26:35,223 INFO L78 Accepts]: Start accepts. Automaton has 38372 states and 52531 transitions. Word has length 135 [2018-08-07 13:26:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:26:35,223 INFO L480 AbstractCegarLoop]: Abstraction has 38372 states and 52531 transitions. [2018-08-07 13:26:35,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 13:26:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 38372 states and 52531 transitions. [2018-08-07 13:26:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-08-07 13:26:35,231 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:26:35,231 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 13:26:35,231 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]=== [2018-08-07 13:26:35,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1096402876, now seen corresponding path program 1 times [2018-08-07 13:26:35,232 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:26:35,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:26:35,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:26:35,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:26:35,233 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:26:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:26:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 76 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:26:35,540 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:26:35,540 INFO L194 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 [2018-08-07 13:26:35,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:26:35,555 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:26:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:26:35,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:26:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-08-07 13:26:35,928 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:26:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 76 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:26:36,556 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 13:26:36,556 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-08-07 13:26:36,557 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:26:36,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 13:26:36,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 13:26:36,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-08-07 13:26:36,558 INFO L87 Difference]: Start difference. First operand 38372 states and 52531 transitions. Second operand 5 states. [2018-08-07 13:27:01,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:27:01,714 INFO L93 Difference]: Finished difference Result 116550 states and 168672 transitions. [2018-08-07 13:27:01,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-07 13:27:01,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2018-08-07 13:27:01,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:27:02,071 INFO L225 Difference]: With dead ends: 116550 [2018-08-07 13:27:02,071 INFO L226 Difference]: Without dead ends: 78184 [2018-08-07 13:27:02,268 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-08-07 13:27:02,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78184 states. [2018-08-07 13:27:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78184 to 76606. [2018-08-07 13:27:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76606 states. [2018-08-07 13:27:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76606 states to 76606 states and 103018 transitions. [2018-08-07 13:27:03,959 INFO L78 Accepts]: Start accepts. Automaton has 76606 states and 103018 transitions. Word has length 200 [2018-08-07 13:27:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:27:03,959 INFO L480 AbstractCegarLoop]: Abstraction has 76606 states and 103018 transitions. [2018-08-07 13:27:03,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 13:27:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 76606 states and 103018 transitions. [2018-08-07 13:27:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-08-07 13:27:04,460 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:27:04,460 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 13:27:04,461 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]=== [2018-08-07 13:27:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash -127797574, now seen corresponding path program 1 times [2018-08-07 13:27:04,463 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:27:04,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:27:04,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:27:04,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:27:04,464 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:27:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:27:04,764 WARN L170 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 13:27:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:27:05,172 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:27:05,172 INFO L194 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 [2018-08-07 13:27:05,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:27:05,188 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:27:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:27:05,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:27:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-08-07 13:27:05,711 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:27:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:27:05,868 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 13:27:05,869 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-08-07 13:27:05,869 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:27:05,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 13:27:05,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 13:27:05,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-08-07 13:27:05,870 INFO L87 Difference]: Start difference. First operand 76606 states and 103018 transitions. Second operand 5 states. [2018-08-07 13:27:24,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:27:24,179 INFO L93 Difference]: Finished difference Result 170632 states and 243786 transitions. [2018-08-07 13:27:24,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 13:27:24,181 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-08-07 13:27:24,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:27:24,470 INFO L225 Difference]: With dead ends: 170632 [2018-08-07 13:27:24,471 INFO L226 Difference]: Without dead ends: 94032 [2018-08-07 13:27:24,581 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 426 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-08-07 13:27:24,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94032 states. [2018-08-07 13:27:26,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94032 to 92642. [2018-08-07 13:27:26,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92642 states. [2018-08-07 13:27:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92642 states to 92642 states and 121955 transitions. [2018-08-07 13:27:26,236 INFO L78 Accepts]: Start accepts. Automaton has 92642 states and 121955 transitions. Word has length 216 [2018-08-07 13:27:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:27:26,237 INFO L480 AbstractCegarLoop]: Abstraction has 92642 states and 121955 transitions. [2018-08-07 13:27:26,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 13:27:26,237 INFO L276 IsEmpty]: Start isEmpty. Operand 92642 states and 121955 transitions. [2018-08-07 13:27:26,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2018-08-07 13:27:26,271 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:27:26,272 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:27:26,273 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]=== [2018-08-07 13:27:26,273 INFO L82 PathProgramCache]: Analyzing trace with hash 559104308, now seen corresponding path program 1 times [2018-08-07 13:27:26,273 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:27:26,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:27:26,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:27:26,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:27:26,275 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:27:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:27:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 329 proven. 89 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 13:27:28,010 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:27:28,010 INFO L194 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 [2018-08-07 13:27:28,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:27:28,023 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:27:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:27:28,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:27:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 465 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-08-07 13:27:28,885 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:27:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 329 proven. 89 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 13:27:29,773 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:27:29,773 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 13:27:29,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:27:29,788 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:27:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:27:30,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:27:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 465 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-08-07 13:27:31,152 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:27:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 329 proven. 89 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 13:27:31,970 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 13:27:31,971 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-08-07 13:27:31,972 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 13:27:31,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-07 13:27:31,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-07 13:27:31,974 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-08-07 13:27:31,974 INFO L87 Difference]: Start difference. First operand 92642 states and 121955 transitions. Second operand 9 states. Received shutdown request... [2018-08-07 13:27:49,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-07 13:27:49,985 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-07 13:27:49,990 WARN L202 ceAbstractionStarter]: Timeout [2018-08-07 13:27:49,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 01:27:49 BoogieIcfgContainer [2018-08-07 13:27:49,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-07 13:27:49,991 INFO L168 Benchmark]: Toolchain (without parser) took 237994.95 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 894.8 MB. Max. memory is 7.1 GB. [2018-08-07 13:27:49,992 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. [2018-08-07 13:27:49,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4038.46 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 222.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -141.7 MB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. [2018-08-07 13:27:49,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 355.46 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: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. [2018-08-07 13:27:49,995 INFO L168 Benchmark]: Boogie Preprocessor took 1834.40 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 843.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -852.0 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-08-07 13:27:49,995 INFO L168 Benchmark]: RCFGBuilder took 20803.72 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 292.6 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 241.1 MB). Peak memory consumption was 998.8 MB. Max. memory is 7.1 GB. [2018-08-07 13:27:49,996 INFO L168 Benchmark]: TraceAbstraction took 210957.82 ms. Allocated memory was 2.9 GB in the beginning and 3.8 GB in the end (delta: 942.7 MB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -719.9 MB). Peak memory consumption was 222.7 MB. Max. memory is 7.1 GB. [2018-08-07 13:27:50,001 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 4038.46 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 222.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -141.7 MB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 355.46 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: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1834.40 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 843.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -852.0 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20803.72 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 292.6 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 241.1 MB). Peak memory consumption was 998.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210957.82 ms. Allocated memory was 2.9 GB in the beginning and 3.8 GB in the end (delta: 942.7 MB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -719.9 MB). Peak memory consumption was 222.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (92642states) and FLOYD_HOARE automaton (currently 14 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (44952 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 195.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3597 SDtfs, 41009 SDslu, 5396 SDs, 0 SdLazy, 76116 SolverSat, 15939 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 170.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4670 GetRequests, 4598 SyntacticMatches, 9 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92642occurred 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: 4.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 3531 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 4073 NumberOfCodeBlocks, 4073 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 6358 ConstructedInterpolants, 0 QuantifiedInterpolants, 8300736 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3334 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 2992/3529 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_label37_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-07_13-27-50-018.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label37_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-07_13-27-50-018.csv Completed graceful shutdown