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/Problem02_label25_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 07:51:34,109 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 07:51:34,112 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 07:51:34,129 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 07:51:34,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 07:51:34,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 07:51:34,131 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 07:51:34,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 07:51:34,137 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 07:51:34,138 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 07:51:34,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 07:51:34,139 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 07:51:34,140 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 07:51:34,144 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 07:51:34,146 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 07:51:34,147 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 07:51:34,148 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 07:51:34,161 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 07:51:34,163 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 07:51:34,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 07:51:34,165 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 07:51:34,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 07:51:34,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 07:51:34,186 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 07:51:34,206 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 07:51:34,206 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 07:51:34,211 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 07:51:34,212 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 07:51:34,212 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 07:51:34,212 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 07:51:34,212 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 07:51:34,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 07:51:34,212 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 07:51:34,213 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 07:51:34,213 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 07:51:34,213 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 07:51:34,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 07:51:34,214 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 07:51:34,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 07:51:34,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 07:51:34,215 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 07:51:34,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 07:51:34,216 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 07:51:34,216 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 07:51:34,216 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 07:51:34,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 07:51:34,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 07:51:34,217 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 07:51:34,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 07:51:34,217 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 07:51:34,217 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 07:51:34,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 07:51:34,218 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 07:51:34,218 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 07:51:34,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 07:51:34,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 07:51:34,219 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 07:51:34,219 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 07:51:34,220 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 07:51:34,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 07:51:34,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 07:51:34,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 07:51:34,298 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 07:51:34,299 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 07:51:34,300 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label25_true-unreach-call_false-termination.c [2018-07-21 07:51:34,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/99f4ac798/0961fd0c0de4446e853c8e60f1e922eb/FLAGff285c5e1 [2018-07-21 07:51:34,996 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 07:51:34,997 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label25_true-unreach-call_false-termination.c [2018-07-21 07:51:35,013 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/99f4ac798/0961fd0c0de4446e853c8e60f1e922eb/FLAGff285c5e1 [2018-07-21 07:51:35,029 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/99f4ac798/0961fd0c0de4446e853c8e60f1e922eb [2018-07-21 07:51:35,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 07:51:35,050 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 07:51:35,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 07:51:35,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 07:51:35,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 07:51:35,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d181515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35, skipping insertion in model container [2018-07-21 07:51:35,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,280 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 07:51:35,554 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:51:35,585 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 07:51:35,787 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:51:35,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35 WrapperNode [2018-07-21 07:51:35,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 07:51:35,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 07:51:35,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 07:51:35,834 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 07:51:35,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 07:51:35,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 07:51:35,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 07:51:35,938 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 07:51:35,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:35,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:36,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:36,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (1/1) ... [2018-07-21 07:51:36,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 07:51:36,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 07:51:36,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 07:51:36,023 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 07:51:36,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (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 07:51:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 07:51:36,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 07:51:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 07:51:36,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-07-21 07:51:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 07:51:36,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 07:51:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 07:51:36,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 07:51:39,775 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 07:51:39,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:51:39 BoogieIcfgContainer [2018-07-21 07:51:39,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 07:51:39,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 07:51:39,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 07:51:39,781 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 07:51:39,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:51:35" (1/3) ... [2018-07-21 07:51:39,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1159095a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:51:39, skipping insertion in model container [2018-07-21 07:51:39,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:51:35" (2/3) ... [2018-07-21 07:51:39,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1159095a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:51:39, skipping insertion in model container [2018-07-21 07:51:39,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:51:39" (3/3) ... [2018-07-21 07:51:39,785 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label25_true-unreach-call_false-termination.c [2018-07-21 07:51:39,796 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 07:51:39,809 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 07:51:39,880 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 07:51:39,881 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 07:51:39,882 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 07:51:39,882 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 07:51:39,882 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 07:51:39,882 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 07:51:39,883 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 07:51:39,883 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 07:51:39,883 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 07:51:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-21 07:51:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-21 07:51:39,936 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:51:39,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:51:39,937 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:51:39,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1914702647, now seen corresponding path program 1 times [2018-07-21 07:51:39,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:51:39,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:39,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:51:39,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:39,998 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:51:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:51:40,639 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 07:51:40,792 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 07:51:40,795 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:51:40,795 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 07:51:40,795 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:51:40,800 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 07:51:40,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 07:51:40,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:51:40,821 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-21 07:51:42,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:51:42,150 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-07-21 07:51:42,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 07:51:42,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-07-21 07:51:42,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:51:42,175 INFO L225 Difference]: With dead ends: 627 [2018-07-21 07:51:42,175 INFO L226 Difference]: Without dead ends: 388 [2018-07-21 07:51:42,182 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 07:51:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-07-21 07:51:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-07-21 07:51:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-07-21 07:51:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-07-21 07:51:42,259 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 141 [2018-07-21 07:51:42,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:51:42,261 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-07-21 07:51:42,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 07:51:42,261 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-07-21 07:51:42,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-21 07:51:42,268 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:51:42,268 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:51:42,270 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:51:42,270 INFO L82 PathProgramCache]: Analyzing trace with hash -754329270, now seen corresponding path program 1 times [2018-07-21 07:51:42,270 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:51:42,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:42,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:51:42,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:42,272 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:51:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:51:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:51:42,602 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:51:42,602 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 07:51:42,602 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:51:42,605 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 07:51:42,605 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 07:51:42,605 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:51:42,606 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 6 states. [2018-07-21 07:51:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:51:44,654 INFO L93 Difference]: Finished difference Result 1053 states and 1766 transitions. [2018-07-21 07:51:44,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 07:51:44,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-07-21 07:51:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:51:44,667 INFO L225 Difference]: With dead ends: 1053 [2018-07-21 07:51:44,668 INFO L226 Difference]: Without dead ends: 381 [2018-07-21 07:51:44,676 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:51:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-07-21 07:51:44,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-07-21 07:51:44,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-07-21 07:51:44,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 607 transitions. [2018-07-21 07:51:44,713 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 607 transitions. Word has length 150 [2018-07-21 07:51:44,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:51:44,713 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 607 transitions. [2018-07-21 07:51:44,713 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 07:51:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 607 transitions. [2018-07-21 07:51:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-21 07:51:44,718 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:51:44,719 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:51:44,719 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:51:44,719 INFO L82 PathProgramCache]: Analyzing trace with hash 555981262, now seen corresponding path program 1 times [2018-07-21 07:51:44,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:51:44,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:44,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:51:44,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:44,721 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:51:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:51:44,973 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 07:51:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:51:45,164 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:51:45,164 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 07:51:45,164 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:51:45,165 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 07:51:45,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 07:51:45,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 07:51:45,166 INFO L87 Difference]: Start difference. First operand 381 states and 607 transitions. Second operand 5 states. [2018-07-21 07:51:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:51:46,999 INFO L93 Difference]: Finished difference Result 761 states and 1228 transitions. [2018-07-21 07:51:47,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 07:51:47,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2018-07-21 07:51:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:51:47,008 INFO L225 Difference]: With dead ends: 761 [2018-07-21 07:51:47,008 INFO L226 Difference]: Without dead ends: 386 [2018-07-21 07:51:47,011 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:51:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-07-21 07:51:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 371. [2018-07-21 07:51:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-07-21 07:51:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 566 transitions. [2018-07-21 07:51:47,061 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 566 transitions. Word has length 152 [2018-07-21 07:51:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:51:47,062 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 566 transitions. [2018-07-21 07:51:47,062 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 07:51:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 566 transitions. [2018-07-21 07:51:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-21 07:51:47,069 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:51:47,069 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:51:47,069 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:51:47,070 INFO L82 PathProgramCache]: Analyzing trace with hash -130298114, now seen corresponding path program 1 times [2018-07-21 07:51:47,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:51:47,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:47,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:51:47,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:51:47,072 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:51:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:51:47,438 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-07-21 07:51:47,797 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-21 07:51:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 07:51:48,210 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:51:48,210 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:51:48,211 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-07-21 07:51:48,214 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [799], [801], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 07:51:48,310 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:51:48,311 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 07:53:17,253 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 07:53:17,254 INFO L272 AbstractInterpreter]: Visited 144 different actions 205 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-07-21 07:53:17,269 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 07:53:34,948 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 81.44% of their original sizes. [2018-07-21 07:53:34,949 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 07:54:03,795 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 07:54:03,796 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 07:54:03,796 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [7] total 30 [2018-07-21 07:54:03,797 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:54:03,797 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-21 07:54:03,797 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-21 07:54:03,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2018-07-21 07:54:03,798 INFO L87 Difference]: Start difference. First operand 371 states and 566 transitions. Second operand 25 states. [2018-07-21 07:54:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:54:39,336 INFO L93 Difference]: Finished difference Result 1357 states and 2152 transitions. [2018-07-21 07:54:39,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-21 07:54:39,336 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 155 [2018-07-21 07:54:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:54:39,347 INFO L225 Difference]: With dead ends: 1357 [2018-07-21 07:54:39,347 INFO L226 Difference]: Without dead ends: 992 [2018-07-21 07:54:39,350 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 49 SyntacticMatches, 82 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2349 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=495, Invalid=1667, Unknown=0, NotChecked=0, Total=2162 [2018-07-21 07:54:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2018-07-21 07:54:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 973. [2018-07-21 07:54:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-07-21 07:54:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1248 transitions. [2018-07-21 07:54:39,419 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1248 transitions. Word has length 155 [2018-07-21 07:54:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:54:39,421 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1248 transitions. [2018-07-21 07:54:39,421 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-21 07:54:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1248 transitions. [2018-07-21 07:54:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-21 07:54:39,426 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:54:39,426 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 07:54:39,426 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 07:54:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1512705523, now seen corresponding path program 1 times [2018-07-21 07:54:39,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:54:39,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:54:39,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:54:39,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:54:39,429 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:54:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:54:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-21 07:54:39,917 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:54:39,917 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:54:39,918 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-07-21 07:54:39,918 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [799], [801], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 07:54:39,927 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:54:39,927 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 07:55:48,570 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 07:55:48,570 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 07:55:48,571 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 07:55:48,571 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:55:48,571 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 07:55:48,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:55:48,580 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 07:55:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:55:48,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 07:55:48,735 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 07:55:48,936 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 07:55:48,936 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 07:55:48,940 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 07:55:48,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 07:55:48 BoogieIcfgContainer [2018-07-21 07:55:48,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 07:55:48,941 INFO L168 Benchmark]: Toolchain (without parser) took 253897.62 ms. Allocated memory was 308.3 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 252.2 MB in the beginning and 550.1 MB in the end (delta: -297.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 07:55:48,942 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 308.3 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 07:55:48,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.21 ms. Allocated memory is still 308.3 MB. Free memory was 252.2 MB in the beginning and 218.2 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 5.3 GB. [2018-07-21 07:55:48,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.22 ms. Allocated memory is still 308.3 MB. Free memory was 218.2 MB in the beginning and 212.2 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:55:48,944 INFO L168 Benchmark]: Boogie Preprocessor took 84.37 ms. Allocated memory is still 308.3 MB. Free memory was 212.2 MB in the beginning and 208.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:55:48,944 INFO L168 Benchmark]: RCFGBuilder took 3753.35 ms. Allocated memory was 308.3 MB in the beginning and 481.8 MB in the end (delta: 173.5 MB). Free memory was 208.2 MB in the beginning and 339.4 MB in the end (delta: -131.2 MB). Peak memory consumption was 58.5 MB. Max. memory is 5.3 GB. [2018-07-21 07:55:48,945 INFO L168 Benchmark]: TraceAbstraction took 249163.56 ms. Allocated memory was 481.8 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 339.4 MB in the beginning and 550.1 MB in the end (delta: -210.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. [2018-07-21 07:55:48,948 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 308.3 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 780.21 ms. Allocated memory is still 308.3 MB. Free memory was 252.2 MB in the beginning and 218.2 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 104.22 ms. Allocated memory is still 308.3 MB. Free memory was 218.2 MB in the beginning and 212.2 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 84.37 ms. Allocated memory is still 308.3 MB. Free memory was 212.2 MB in the beginning and 208.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3753.35 ms. Allocated memory was 308.3 MB in the beginning and 481.8 MB in the end (delta: 173.5 MB). Free memory was 208.2 MB in the beginning and 339.4 MB in the end (delta: -131.2 MB). Peak memory consumption was 58.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 249163.56 ms. Allocated memory was 481.8 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 339.4 MB in the beginning and 550.1 MB in the end (delta: -210.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 574]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 574). Cancelled while BasicCegarLoop was analyzing trace of length 193 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 249.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 40.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 580 SDtfs, 3685 SDslu, 537 SDs, 0 SdLazy, 3206 SolverSat, 757 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 196 GetRequests, 57 SyntacticMatches, 85 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2349 ImplicationChecksByTransitivity, 32.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=973occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 157.7s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9950259555522718 AbsIntWeakeningRatio, 0.17532467532467533 AbsIntAvgWeakeningVarsNumRemoved, 59.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 594 ConstructedInterpolants, 0 QuantifiedInterpolants, 437329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 14/25 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/Problem02_label25_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_07-55-48-964.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label25_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_07-55-48-964.csv Completed graceful shutdown