java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:20:11,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:20:11,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:20:11,855 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:20:11,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:20:11,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:20:11,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:20:11,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:20:11,865 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:20:11,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:20:11,876 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:20:11,876 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:20:11,877 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:20:11,878 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:20:11,879 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:20:11,880 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:20:11,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:20:11,882 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:20:11,884 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:20:11,885 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:20:11,887 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:20:11,888 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:20:11,890 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 22:20:11,897 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:20:11,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:20:11,899 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:20:11,900 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:20:11,900 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 22:20:11,931 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:20:11,932 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:20:11,933 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:20:11,933 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:20:11,933 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:20:11,933 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:20:11,934 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:20:11,934 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:20:11,934 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:20:11,934 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:20:11,935 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:20:11,936 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:20:11,936 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:20:11,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:20:11,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:20:11,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:20:11,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:20:11,937 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:20:11,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:20:11,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:20:11,939 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:20:11,939 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:20:11,939 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:20:11,940 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:20:11,940 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:20:11,940 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:20:11,940 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:20:11,940 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:20:11,941 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:20:11,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:20:11,941 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:20:11,941 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:20:11,941 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:20:12,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:20:12,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:20:12,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:20:12,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:20:12,038 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:20:12,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-07-23 22:20:12,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ef257c4/d7f30bce60174a5f80687a62a185a111/FLAGe6a1d47fd [2018-07-23 22:20:12,912 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:20:12,913 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-07-23 22:20:12,966 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ef257c4/d7f30bce60174a5f80687a62a185a111/FLAGe6a1d47fd [2018-07-23 22:20:12,984 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86ef257c4/d7f30bce60174a5f80687a62a185a111 [2018-07-23 22:20:12,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:20:12,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:20:13,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:20:13,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:20:13,008 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:20:13,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:20:12" (1/1) ... [2018-07-23 22:20:13,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa5e025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:13, skipping insertion in model container [2018-07-23 22:20:13,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:20:12" (1/1) ... [2018-07-23 22:20:13,401 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:20:14,620 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:20:14,648 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:20:15,361 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:20:15,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15 WrapperNode [2018-07-23 22:20:15,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:20:15,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:20:15,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:20:15,811 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:20:15,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:15,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:16,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:20:16,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:20:16,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:20:16,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:20:17,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (1/1) ... [2018-07-23 22:20:17,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:20:17,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:20:17,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:20:17,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:20:17,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (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 [2018-07-23 22:20:17,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:20:17,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:20:17,658 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 [2018-07-23 22:20:17,658 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 [2018-07-23 22:20:17,658 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 [2018-07-23 22:20:17,658 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 [2018-07-23 22:20:17,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:20:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:20:17,659 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 [2018-07-23 22:20:17,659 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 [2018-07-23 22:20:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:20:17,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:20:17,660 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 [2018-07-23 22:20:17,660 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 [2018-07-23 22:20:30,714 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:20:30,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:20:30 BoogieIcfgContainer [2018-07-23 22:20:30,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:20:30,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:20:30,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:20:30,720 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:20:30,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:20:12" (1/3) ... [2018-07-23 22:20:30,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9b0949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:20:30, skipping insertion in model container [2018-07-23 22:20:30,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:20:15" (2/3) ... [2018-07-23 22:20:30,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9b0949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:20:30, skipping insertion in model container [2018-07-23 22:20:30,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:20:30" (3/3) ... [2018-07-23 22:20:30,724 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label13_true-unreach-call.c [2018-07-23 22:20:30,734 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:20:30,744 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:20:30,805 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:20:30,806 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:20:30,806 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:20:30,806 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:20:30,806 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:20:30,806 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:20:30,807 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:20:30,807 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:20:30,807 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:20:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-23 22:20:30,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-23 22:20:30,870 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:20:30,872 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:20:30,873 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:20:30,879 INFO L82 PathProgramCache]: Analyzing trace with hash -100649492, now seen corresponding path program 1 times [2018-07-23 22:20:30,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:20:30,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:30,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:20:30,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:30,938 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:20:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:20:31,376 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:20:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:20:31,526 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:20:31,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:20:31,527 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:20:31,533 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:20:31,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:20:31,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:20:31,558 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-23 22:20:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:20:44,615 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-07-23 22:20:44,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:20:44,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-07-23 22:20:44,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:20:44,661 INFO L225 Difference]: With dead ends: 3093 [2018-07-23 22:20:44,661 INFO L226 Difference]: Without dead ends: 1971 [2018-07-23 22:20:44,676 INFO L573 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 [2018-07-23 22:20:44,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-07-23 22:20:44,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-07-23 22:20:44,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-07-23 22:20:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-07-23 22:20:44,846 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 64 [2018-07-23 22:20:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:20:44,847 INFO L471 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-07-23 22:20:44,847 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:20:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-07-23 22:20:44,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 22:20:44,861 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:20:44,862 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:20:44,862 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:20:44,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1481263410, now seen corresponding path program 1 times [2018-07-23 22:20:44,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:20:44,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:44,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:20:44,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:20:44,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:20:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:20:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:20:45,348 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:20:45,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 22:20:45,348 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:20:45,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:20:45,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:20:45,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:20:45,351 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 7 states. [2018-07-23 22:21:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:21:13,150 INFO L93 Difference]: Finished difference Result 7403 states and 13853 transitions. [2018-07-23 22:21:13,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 22:21:13,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2018-07-23 22:21:13,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:21:13,192 INFO L225 Difference]: With dead ends: 7403 [2018-07-23 22:21:13,192 INFO L226 Difference]: Without dead ends: 5452 [2018-07-23 22:21:13,204 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 22:21:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5452 states. [2018-07-23 22:21:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5452 to 5389. [2018-07-23 22:21:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5389 states. [2018-07-23 22:21:13,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 8256 transitions. [2018-07-23 22:21:13,379 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 8256 transitions. Word has length 147 [2018-07-23 22:21:13,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:21:13,379 INFO L471 AbstractCegarLoop]: Abstraction has 5389 states and 8256 transitions. [2018-07-23 22:21:13,379 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:21:13,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 8256 transitions. [2018-07-23 22:21:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-23 22:21:13,386 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:21:13,386 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:21:13,386 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:21:13,387 INFO L82 PathProgramCache]: Analyzing trace with hash 830443648, now seen corresponding path program 1 times [2018-07-23 22:21:13,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:21:13,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:13,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:21:13,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:13,484 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:21:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:21:13,725 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:21:13,726 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:21:13,726 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 22:21:13,726 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:21:13,727 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 22:21:13,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 22:21:13,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 22:21:13,728 INFO L87 Difference]: Start difference. First operand 5389 states and 8256 transitions. Second operand 5 states. [2018-07-23 22:21:32,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:21:32,224 INFO L93 Difference]: Finished difference Result 15825 states and 25181 transitions. [2018-07-23 22:21:32,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 22:21:32,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2018-07-23 22:21:32,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:21:32,275 INFO L225 Difference]: With dead ends: 15825 [2018-07-23 22:21:32,276 INFO L226 Difference]: Without dead ends: 10442 [2018-07-23 22:21:32,304 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:21:32,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10442 states. [2018-07-23 22:21:32,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10442 to 10433. [2018-07-23 22:21:32,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10433 states. [2018-07-23 22:21:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10433 states to 10433 states and 15591 transitions. [2018-07-23 22:21:32,565 INFO L78 Accepts]: Start accepts. Automaton has 10433 states and 15591 transitions. Word has length 154 [2018-07-23 22:21:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:21:32,566 INFO L471 AbstractCegarLoop]: Abstraction has 10433 states and 15591 transitions. [2018-07-23 22:21:32,566 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 22:21:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 10433 states and 15591 transitions. [2018-07-23 22:21:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-23 22:21:32,570 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:21:32,571 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:21:32,571 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:21:32,571 INFO L82 PathProgramCache]: Analyzing trace with hash -991517960, now seen corresponding path program 1 times [2018-07-23 22:21:32,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:21:32,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:32,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:21:32,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:32,573 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:21:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:21:32,851 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:21:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:21:32,923 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:21:32,923 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:21:32,923 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:21:32,924 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:21:32,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:21:32,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:21:32,925 INFO L87 Difference]: Start difference. First operand 10433 states and 15591 transitions. Second operand 6 states. [2018-07-23 22:21:43,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:21:43,854 INFO L93 Difference]: Finished difference Result 29752 states and 47957 transitions. [2018-07-23 22:21:43,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:21:43,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-07-23 22:21:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:21:43,941 INFO L225 Difference]: With dead ends: 29752 [2018-07-23 22:21:43,941 INFO L226 Difference]: Without dead ends: 19325 [2018-07-23 22:21:43,981 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 22:21:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2018-07-23 22:21:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 19186. [2018-07-23 22:21:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19186 states. [2018-07-23 22:21:44,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19186 states to 19186 states and 28218 transitions. [2018-07-23 22:21:44,494 INFO L78 Accepts]: Start accepts. Automaton has 19186 states and 28218 transitions. Word has length 174 [2018-07-23 22:21:44,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:21:44,495 INFO L471 AbstractCegarLoop]: Abstraction has 19186 states and 28218 transitions. [2018-07-23 22:21:44,495 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:21:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 19186 states and 28218 transitions. [2018-07-23 22:21:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-23 22:21:44,506 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:21:44,506 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:21:44,507 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:21:44,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1104518048, now seen corresponding path program 1 times [2018-07-23 22:21:44,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:21:44,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:44,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:21:44,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:21:44,508 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:21:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:21:44,846 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:21:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 114 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 22:21:45,224 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:21:45,224 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:21:45,225 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-07-23 22:21:45,228 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [522], [526], [530], [533], [534], [538], [542], [553], [557], [561], [565], [569], [573], [577], [581], [592], [596], [600], [604], [608], [612], [616], [619], [1612], [3064], [3068], [3074], [3078], [3080], [4267], [4268], [4269], [4271], [4272] [2018-07-23 22:21:45,312 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:21:45,312 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:21:54,535 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:21:54,536 INFO L272 AbstractInterpreter]: Visited 101 different actions 101 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-23 22:21:54,550 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:22:02,116 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 71.64% of their original sizes. [2018-07-23 22:22:02,117 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:22:02,630 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:22:02,631 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:22:02,632 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 22:22:02,632 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:22:02,633 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:22:02,633 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:22:02,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:22:02,634 INFO L87 Difference]: Start difference. First operand 19186 states and 28218 transitions. Second operand 7 states. [2018-07-23 22:22:25,552 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 22:23:57,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:23:57,870 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:23:57,875 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:23:57,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:23:57 BoogieIcfgContainer [2018-07-23 22:23:57,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:23:57,876 INFO L168 Benchmark]: Toolchain (without parser) took 224879.52 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 32.1 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-23 22:23:57,877 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-07-23 22:23:57,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2810.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-07-23 22:23:57,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 343.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 988.7 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:23:57,880 INFO L168 Benchmark]: Boogie Preprocessor took 1426.26 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 949.0 MB). Free memory was 988.7 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:23:57,881 INFO L168 Benchmark]: RCFGBuilder took 13134.33 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 178.3 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 74.7 MB). Peak memory consumption was 750.5 MB. Max. memory is 7.1 GB. [2018-07-23 22:23:57,882 INFO L168 Benchmark]: TraceAbstraction took 207159.25 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 2.2 GB in the beginning and 1.3 GB in the end (delta: 837.3 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-23 22:23:57,888 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2810.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 343.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 988.7 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1426.26 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 949.0 MB). Free memory was 988.7 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13134.33 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 178.3 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 74.7 MB). Peak memory consumption was 750.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207159.25 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 2.2 GB in the beginning and 1.3 GB in the end (delta: 837.3 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (19186states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (9683 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 207.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 185.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2115 SDtfs, 14007 SDslu, 2239 SDs, 0 SdLazy, 24167 SolverSat, 5962 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 156.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 273 GetRequests, 242 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19186occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9959104186952288 AbsIntWeakeningRatio, 0.11392405063291139 AbsIntAvgWeakeningVarsNumRemoved, 1025.9240506329113 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 225 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 777 NumberOfCodeBlocks, 777 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 772 ConstructedInterpolants, 0 QuantifiedInterpolants, 403452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 290/363 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/Problem13_label13_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-23-57-903.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label13_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-23-57-903.csv Completed graceful shutdown