java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label23_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 03:15:01,874 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 03:15:01,876 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 03:15:01,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 03:15:01,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 03:15:01,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 03:15:01,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 03:15:01,899 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 03:15:01,903 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 03:15:01,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 03:15:01,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 03:15:01,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 03:15:01,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 03:15:01,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 03:15:01,916 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 03:15:01,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 03:15:01,918 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 03:15:01,920 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 03:15:01,924 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 03:15:01,926 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 03:15:01,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 03:15:01,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 03:15:01,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 03:15:01,947 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 03:15:01,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 03:15:01,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 03:15:01,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 03:15:01,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 03:15:01,972 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 03:15:01,973 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 03:15:01,973 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 03:15:01,973 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 03:15:01,973 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 03:15:01,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 03:15:01,974 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 03:15:01,974 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 03:15:01,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 03:15:01,975 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 03:15:01,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 03:15:01,975 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 03:15:01,975 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 03:15:01,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 03:15:01,976 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 03:15:01,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 03:15:01,976 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 03:15:01,976 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 03:15:01,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 03:15:01,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 03:15:01,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 03:15:01,977 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 03:15:01,977 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 03:15:01,977 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 03:15:01,977 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 03:15:01,978 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 03:15:01,978 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 03:15:01,978 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 03:15:01,978 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 03:15:01,978 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 03:15:01,979 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 03:15:02,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 03:15:02,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 03:15:02,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 03:15:02,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 03:15:02,056 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 03:15:02,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label23_false-unreach-call.c [2018-07-21 03:15:02,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8a497da11/b1f6473b43904cbea524937c7caebd2f/FLAG59d72c1ae [2018-07-21 03:15:03,091 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 03:15:03,092 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label23_false-unreach-call.c [2018-07-21 03:15:03,168 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8a497da11/b1f6473b43904cbea524937c7caebd2f/FLAG59d72c1ae [2018-07-21 03:15:03,189 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8a497da11/b1f6473b43904cbea524937c7caebd2f [2018-07-21 03:15:03,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 03:15:03,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 03:15:03,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 03:15:03,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 03:15:03,217 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 03:15:03,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:15:03" (1/1) ... [2018-07-21 03:15:03,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ab3998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:03, skipping insertion in model container [2018-07-21 03:15:03,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:15:03" (1/1) ... [2018-07-21 03:15:03,660 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 03:15:04,978 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:15:04,998 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 03:15:06,019 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:15:06,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06 WrapperNode [2018-07-21 03:15:06,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 03:15:06,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 03:15:06,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 03:15:06,389 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 03:15:06,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:06,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:06,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 03:15:06,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 03:15:06,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 03:15:06,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 03:15:06,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:06,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:07,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:07,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:07,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:08,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:08,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... [2018-07-21 03:15:08,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 03:15:08,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 03:15:08,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 03:15:08,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 03:15:08,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 03:15:08,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 03:15:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 03:15:08,551 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:15:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:15:08,551 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 03:15:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 03:15:08,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 03:15:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 03:15:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 03:15:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 03:15:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 03:15:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 03:15:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 03:15:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 03:15:20,750 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 03:15:20,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:15:20 BoogieIcfgContainer [2018-07-21 03:15:20,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 03:15:20,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 03:15:20,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 03:15:20,756 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 03:15:20,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:15:03" (1/3) ... [2018-07-21 03:15:20,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f2f7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:15:20, skipping insertion in model container [2018-07-21 03:15:20,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:15:06" (2/3) ... [2018-07-21 03:15:20,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f2f7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:15:20, skipping insertion in model container [2018-07-21 03:15:20,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:15:20" (3/3) ... [2018-07-21 03:15:20,760 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label23_false-unreach-call.c [2018-07-21 03:15:20,770 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 03:15:20,781 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 03:15:20,847 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 03:15:20,847 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 03:15:20,848 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 03:15:20,848 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 03:15:20,848 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 03:15:20,848 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 03:15:20,848 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 03:15:20,848 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 03:15:20,848 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 03:15:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 03:15:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-21 03:15:20,905 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:15:20,906 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:15:20,907 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:15:20,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1821305214, now seen corresponding path program 1 times [2018-07-21 03:15:20,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:15:20,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:20,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:15:20,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:20,969 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:15:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:15:21,355 WARN L169 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 03:15:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:15:21,461 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:15:21,462 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 03:15:21,462 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:15:21,466 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 03:15:21,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 03:15:21,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 03:15:21,485 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-21 03:15:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:15:29,847 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-07-21 03:15:29,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 03:15:29,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-07-21 03:15:29,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:15:29,890 INFO L225 Difference]: With dead ends: 3101 [2018-07-21 03:15:29,890 INFO L226 Difference]: Without dead ends: 1979 [2018-07-21 03:15:29,901 INFO L578 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 [2018-07-21 03:15:29,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-07-21 03:15:30,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-07-21 03:15:30,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-07-21 03:15:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-07-21 03:15:30,097 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 20 [2018-07-21 03:15:30,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:15:30,098 INFO L471 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-07-21 03:15:30,098 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 03:15:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-07-21 03:15:30,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-21 03:15:30,108 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:15:30,109 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 03:15:30,109 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:15:30,109 INFO L82 PathProgramCache]: Analyzing trace with hash 349822382, now seen corresponding path program 1 times [2018-07-21 03:15:30,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:15:30,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:30,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:15:30,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:30,113 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:15:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:15:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:15:30,389 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:15:30,390 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 03:15:30,390 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:15:30,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 03:15:30,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 03:15:30,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 03:15:30,394 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-07-21 03:15:48,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:15:48,243 INFO L93 Difference]: Finished difference Result 5716 states and 10466 transitions. [2018-07-21 03:15:48,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:15:48,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2018-07-21 03:15:48,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:15:48,280 INFO L225 Difference]: With dead ends: 5716 [2018-07-21 03:15:48,280 INFO L226 Difference]: Without dead ends: 3763 [2018-07-21 03:15:48,289 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:15:48,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3763 states. [2018-07-21 03:15:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3763 to 3680. [2018-07-21 03:15:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3680 states. [2018-07-21 03:15:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 6043 transitions. [2018-07-21 03:15:48,558 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 6043 transitions. Word has length 96 [2018-07-21 03:15:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:15:48,559 INFO L471 AbstractCegarLoop]: Abstraction has 3680 states and 6043 transitions. [2018-07-21 03:15:48,559 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 03:15:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 6043 transitions. [2018-07-21 03:15:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-21 03:15:48,564 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:15:48,565 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 03:15:48,565 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:15:48,565 INFO L82 PathProgramCache]: Analyzing trace with hash 510995437, now seen corresponding path program 1 times [2018-07-21 03:15:48,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:15:48,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:48,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:15:48,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:48,570 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:15:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:15:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:15:48,789 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:15:48,789 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 03:15:48,790 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:15:48,791 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 03:15:48,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 03:15:48,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-21 03:15:48,792 INFO L87 Difference]: Start difference. First operand 3680 states and 6043 transitions. Second operand 5 states. [2018-07-21 03:15:59,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:15:59,026 INFO L93 Difference]: Finished difference Result 12338 states and 20349 transitions. [2018-07-21 03:15:59,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 03:15:59,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-07-21 03:15:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:15:59,072 INFO L225 Difference]: With dead ends: 12338 [2018-07-21 03:15:59,072 INFO L226 Difference]: Without dead ends: 8664 [2018-07-21 03:15:59,091 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:15:59,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8664 states. [2018-07-21 03:15:59,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8664 to 8636. [2018-07-21 03:15:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8636 states. [2018-07-21 03:15:59,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 13022 transitions. [2018-07-21 03:15:59,371 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 13022 transitions. Word has length 97 [2018-07-21 03:15:59,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:15:59,372 INFO L471 AbstractCegarLoop]: Abstraction has 8636 states and 13022 transitions. [2018-07-21 03:15:59,372 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 03:15:59,372 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 13022 transitions. [2018-07-21 03:15:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-21 03:15:59,380 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:15:59,381 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 03:15:59,381 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:15:59,381 INFO L82 PathProgramCache]: Analyzing trace with hash 378298098, now seen corresponding path program 1 times [2018-07-21 03:15:59,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:15:59,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:59,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:15:59,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:15:59,383 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:15:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:15:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:15:59,674 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:15:59,675 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:15:59,675 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:15:59,675 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:15:59,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:15:59,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:15:59,676 INFO L87 Difference]: Start difference. First operand 8636 states and 13022 transitions. Second operand 4 states. [2018-07-21 03:16:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:16:07,996 INFO L93 Difference]: Finished difference Result 27050 states and 43279 transitions. [2018-07-21 03:16:07,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:16:07,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2018-07-21 03:16:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:16:08,106 INFO L225 Difference]: With dead ends: 27050 [2018-07-21 03:16:08,106 INFO L226 Difference]: Without dead ends: 18420 [2018-07-21 03:16:08,146 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:16:08,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18420 states. [2018-07-21 03:16:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18420 to 18419. [2018-07-21 03:16:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18419 states. [2018-07-21 03:16:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18419 states to 18419 states and 27255 transitions. [2018-07-21 03:16:08,621 INFO L78 Accepts]: Start accepts. Automaton has 18419 states and 27255 transitions. Word has length 141 [2018-07-21 03:16:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:16:08,622 INFO L471 AbstractCegarLoop]: Abstraction has 18419 states and 27255 transitions. [2018-07-21 03:16:08,622 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:16:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 18419 states and 27255 transitions. [2018-07-21 03:16:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-21 03:16:08,627 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:16:08,627 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:16:08,627 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:16:08,627 INFO L82 PathProgramCache]: Analyzing trace with hash -758053094, now seen corresponding path program 1 times [2018-07-21 03:16:08,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:16:08,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:16:08,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:16:08,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:16:08,629 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:16:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:16:08,972 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 03:16:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 26 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 03:16:09,076 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:16:09,077 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:16:09,078 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-07-21 03:16:09,079 INFO L201 CegarAbsIntRunner]: [0], [1], [2631], [2635], [2641], [2645], [2647], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2711], [2713], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3124], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3175], [3176], [3180], [3183], [4262], [4265], [4266], [4267], [4271], [4272] [2018-07-21 03:16:09,144 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:16:09,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:16:16,607 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:16:16,608 INFO L272 AbstractInterpreter]: Visited 83 different actions 83 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 03:16:16,616 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:16:24,467 INFO L232 lantSequenceWeakener]: Weakened 166 states. On average, predicates are now at 70.85% of their original sizes. [2018-07-21 03:16:24,467 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:16:25,167 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:16:25,168 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:16:25,168 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 03:16:25,168 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:16:25,169 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 03:16:25,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 03:16:25,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 03:16:25,170 INFO L87 Difference]: Start difference. First operand 18419 states and 27255 transitions. Second operand 7 states. [2018-07-21 03:16:35,234 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 03:18:31,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 03:18:31,805 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 03:18:31,810 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 03:18:31,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:18:31 BoogieIcfgContainer [2018-07-21 03:18:31,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 03:18:31,811 INFO L168 Benchmark]: Toolchain (without parser) took 208607.92 ms. Allocated memory was 304.6 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 234.6 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-21 03:18:31,812 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 03:18:31,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3178.47 ms. Allocated memory was 304.6 MB in the beginning and 380.1 MB in the end (delta: 75.5 MB). Free memory was 233.6 MB in the beginning and 181.0 MB in the end (delta: 52.5 MB). Peak memory consumption was 128.0 MB. Max. memory is 5.3 GB. [2018-07-21 03:18:31,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 594.78 ms. Allocated memory was 380.1 MB in the beginning and 388.5 MB in the end (delta: 8.4 MB). Free memory was 181.0 MB in the beginning and 258.2 MB in the end (delta: -77.2 MB). Peak memory consumption was 88.8 MB. Max. memory is 5.3 GB. [2018-07-21 03:18:31,814 INFO L168 Benchmark]: Boogie Preprocessor took 1495.66 ms. Allocated memory was 388.5 MB in the beginning and 653.8 MB in the end (delta: 265.3 MB). Free memory was 258.2 MB in the beginning and 512.8 MB in the end (delta: -254.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 5.3 GB. [2018-07-21 03:18:31,815 INFO L168 Benchmark]: RCFGBuilder took 12270.64 ms. Allocated memory was 653.8 MB in the beginning and 877.7 MB in the end (delta: 223.9 MB). Free memory was 512.8 MB in the beginning and 543.4 MB in the end (delta: -30.6 MB). Peak memory consumption was 320.5 MB. Max. memory is 5.3 GB. [2018-07-21 03:18:31,817 INFO L168 Benchmark]: TraceAbstraction took 191057.74 ms. Allocated memory was 877.7 MB in the beginning and 2.7 GB in the end (delta: 1.8 GB). Free memory was 543.4 MB in the beginning and 1.4 GB in the end (delta: -902.2 MB). Peak memory consumption was 892.4 MB. Max. memory is 5.3 GB. [2018-07-21 03:18:31,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 304.6 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3178.47 ms. Allocated memory was 304.6 MB in the beginning and 380.1 MB in the end (delta: 75.5 MB). Free memory was 233.6 MB in the beginning and 181.0 MB in the end (delta: 52.5 MB). Peak memory consumption was 128.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 594.78 ms. Allocated memory was 380.1 MB in the beginning and 388.5 MB in the end (delta: 8.4 MB). Free memory was 181.0 MB in the beginning and 258.2 MB in the end (delta: -77.2 MB). Peak memory consumption was 88.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1495.66 ms. Allocated memory was 388.5 MB in the beginning and 653.8 MB in the end (delta: 265.3 MB). Free memory was 258.2 MB in the beginning and 512.8 MB in the end (delta: -254.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 12270.64 ms. Allocated memory was 653.8 MB in the beginning and 877.7 MB in the end (delta: 223.9 MB). Free memory was 512.8 MB in the beginning and 543.4 MB in the end (delta: -30.6 MB). Peak memory consumption was 320.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 191057.74 ms. Allocated memory was 877.7 MB in the beginning and 2.7 GB in the end (delta: 1.8 GB). Free memory was 543.4 MB in the beginning and 1.4 GB in the end (delta: -902.2 MB). Peak memory consumption was 892.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 51). Cancelled while BasicCegarLoop was constructing difference of abstraction (18419states) and interpolant automaton (currently 7 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (9949 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 190.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 171.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3625 SDtfs, 12097 SDslu, 1637 SDs, 0 SdLazy, 18961 SolverSat, 5237 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 134.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 200 GetRequests, 179 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18419occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9943975100044463 AbsIntWeakeningRatio, 0.15606936416184972 AbsIntAvgWeakeningVarsNumRemoved, 58.225433526011564 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 132 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 523 ConstructedInterpolants, 0 QuantifiedInterpolants, 195841 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 70/141 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label23_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_03-18-31-836.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label23_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_03-18-31-836.csv Completed graceful shutdown