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_label01_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 07:21:38,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 07:21:38,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 07:21:38,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 07:21:38,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 07:21:38,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 07:21:38,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 07:21:38,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 07:21:38,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 07:21:38,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 07:21:38,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 07:21:38,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 07:21:38,546 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 07:21:38,547 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 07:21:38,548 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 07:21:38,549 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 07:21:38,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 07:21:38,555 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 07:21:38,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 07:21:38,568 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 07:21:38,570 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 07:21:38,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 07:21:38,573 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 07:21:38,590 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 07:21:38,615 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 07:21:38,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 07:21:38,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 07:21:38,620 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 07:21:38,620 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 07:21:38,620 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 07:21:38,621 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 07:21:38,621 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 07:21:38,621 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 07:21:38,621 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 07:21:38,621 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 07:21:38,622 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 07:21:38,622 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 07:21:38,623 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 07:21:38,623 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 07:21:38,623 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 07:21:38,623 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 07:21:38,623 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 07:21:38,623 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 07:21:38,625 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 07:21:38,625 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 07:21:38,625 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 07:21:38,625 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 07:21:38,625 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 07:21:38,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 07:21:38,626 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 07:21:38,626 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 07:21:38,626 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 07:21:38,626 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 07:21:38,627 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 07:21:38,627 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 07:21:38,627 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 07:21:38,627 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 07:21:38,627 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 07:21:38,627 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 07:21:38,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 07:21:38,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 07:21:38,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 07:21:38,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 07:21:38,704 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 07:21:38,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label01_true-unreach-call_false-termination.c [2018-07-21 07:21:39,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8f91d1e3a/17b65e001c5a47a5bde4f993e18f99a4/FLAGb7d176d0c [2018-07-21 07:21:39,401 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 07:21:39,402 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label01_true-unreach-call_false-termination.c [2018-07-21 07:21:39,418 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8f91d1e3a/17b65e001c5a47a5bde4f993e18f99a4/FLAGb7d176d0c [2018-07-21 07:21:39,447 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8f91d1e3a/17b65e001c5a47a5bde4f993e18f99a4 [2018-07-21 07:21:39,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 07:21:39,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 07:21:39,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 07:21:39,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 07:21:39,478 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 07:21:39,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:21:39" (1/1) ... [2018-07-21 07:21:39,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a16f28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:39, skipping insertion in model container [2018-07-21 07:21:39,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:21:39" (1/1) ... [2018-07-21 07:21:39,693 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 07:21:39,968 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:21:39,986 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 07:21:40,138 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 07:21:40,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40 WrapperNode [2018-07-21 07:21:40,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 07:21:40,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 07:21:40,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 07:21:40,201 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 07:21:40,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 07:21:40,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 07:21:40,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 07:21:40,335 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 07:21:40,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (1/1) ... [2018-07-21 07:21:40,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 07:21:40,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 07:21:40,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 07:21:40,414 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 07:21:40,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (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 07:21:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 07:21:40,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 07:21:40,667 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 07:21:40,667 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 07:21:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 07:21:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 07:21:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 07:21:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 07:21:44,159 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 07:21:44,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:21:44 BoogieIcfgContainer [2018-07-21 07:21:44,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 07:21:44,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 07:21:44,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 07:21:44,174 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 07:21:44,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:21:39" (1/3) ... [2018-07-21 07:21:44,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec8d9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:21:44, skipping insertion in model container [2018-07-21 07:21:44,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:21:40" (2/3) ... [2018-07-21 07:21:44,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec8d9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:21:44, skipping insertion in model container [2018-07-21 07:21:44,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:21:44" (3/3) ... [2018-07-21 07:21:44,178 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label01_true-unreach-call_false-termination.c [2018-07-21 07:21:44,194 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 07:21:44,203 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 07:21:44,254 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 07:21:44,255 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 07:21:44,255 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 07:21:44,255 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 07:21:44,256 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 07:21:44,256 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 07:21:44,256 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 07:21:44,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 07:21:44,256 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 07:21:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-07-21 07:21:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-21 07:21:44,300 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:21:44,301 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] [2018-07-21 07:21:44,302 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 07:21:44,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1161887336, now seen corresponding path program 1 times [2018-07-21 07:21:44,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:21:44,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:44,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:21:44,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:44,353 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:21:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:21:44,944 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 07:21:44,996 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 07:21:44,998 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:21:44,999 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 07:21:44,999 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:21:45,003 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 07:21:45,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 07:21:45,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:21:45,026 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-07-21 07:21:46,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:21:46,593 INFO L93 Difference]: Finished difference Result 627 states and 1072 transitions. [2018-07-21 07:21:46,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 07:21:46,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2018-07-21 07:21:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:21:46,618 INFO L225 Difference]: With dead ends: 627 [2018-07-21 07:21:46,618 INFO L226 Difference]: Without dead ends: 388 [2018-07-21 07:21:46,626 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 07:21:46,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-07-21 07:21:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2018-07-21 07:21:46,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-07-21 07:21:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 619 transitions. [2018-07-21 07:21:46,713 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 619 transitions. Word has length 120 [2018-07-21 07:21:46,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:21:46,715 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 619 transitions. [2018-07-21 07:21:46,715 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 07:21:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 619 transitions. [2018-07-21 07:21:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-21 07:21:46,725 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:21:46,726 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] [2018-07-21 07:21:46,726 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 07:21:46,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1154273883, now seen corresponding path program 1 times [2018-07-21 07:21:46,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:21:46,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:46,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:21:46,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:46,731 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:21:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:21:47,274 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 07:21:47,276 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:21:47,298 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 07:21:47,299 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:21:47,301 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 07:21:47,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 07:21:47,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:21:47,305 INFO L87 Difference]: Start difference. First operand 383 states and 619 transitions. Second operand 6 states. [2018-07-21 07:21:48,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:21:48,840 INFO L93 Difference]: Finished difference Result 1053 states and 1766 transitions. [2018-07-21 07:21:48,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 07:21:48,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-07-21 07:21:48,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:21:48,847 INFO L225 Difference]: With dead ends: 1053 [2018-07-21 07:21:48,847 INFO L226 Difference]: Without dead ends: 381 [2018-07-21 07:21:48,855 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-21 07:21:48,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-07-21 07:21:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-07-21 07:21:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-07-21 07:21:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 607 transitions. [2018-07-21 07:21:48,892 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 607 transitions. Word has length 129 [2018-07-21 07:21:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:21:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 607 transitions. [2018-07-21 07:21:48,893 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 07:21:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 607 transitions. [2018-07-21 07:21:48,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-21 07:21:48,897 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:21:48,897 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] [2018-07-21 07:21:48,898 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 07:21:48,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1301127841, now seen corresponding path program 1 times [2018-07-21 07:21:48,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:21:48,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:48,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:21:48,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:48,900 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:21:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:21:49,084 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 07:21:49,233 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 07:21:49,233 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 07:21:49,233 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 07:21:49,234 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:21:49,234 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 07:21:49,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 07:21:49,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 07:21:49,235 INFO L87 Difference]: Start difference. First operand 381 states and 607 transitions. Second operand 5 states. [2018-07-21 07:21:51,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:21:51,108 INFO L93 Difference]: Finished difference Result 761 states and 1228 transitions. [2018-07-21 07:21:51,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 07:21:51,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-07-21 07:21:51,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:21:51,114 INFO L225 Difference]: With dead ends: 761 [2018-07-21 07:21:51,114 INFO L226 Difference]: Without dead ends: 386 [2018-07-21 07:21:51,116 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 07:21:51,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-07-21 07:21:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 371. [2018-07-21 07:21:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-07-21 07:21:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 566 transitions. [2018-07-21 07:21:51,162 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 566 transitions. Word has length 131 [2018-07-21 07:21:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:21:51,162 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 566 transitions. [2018-07-21 07:21:51,162 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 07:21:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 566 transitions. [2018-07-21 07:21:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-21 07:21:51,165 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:21:51,165 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] [2018-07-21 07:21:51,166 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 07:21:51,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1754755215, now seen corresponding path program 1 times [2018-07-21 07:21:51,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:21:51,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:51,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:21:51,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:21:51,168 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:21:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:21:51,451 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 07:21:51,451 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:21:51,451 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:21:51,452 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-07-21 07:21:51,454 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], [631], [633], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 07:21:51,540 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:21:51,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 07:23:18,795 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 07:23:18,796 INFO L272 AbstractInterpreter]: Visited 123 different actions 184 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 07:23:18,806 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 07:23:36,791 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 81.14% of their original sizes. [2018-07-21 07:23:36,791 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 07:24:03,860 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 07:24:03,861 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 07:24:03,861 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [7] total 30 [2018-07-21 07:24:03,861 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 07:24:03,862 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-21 07:24:03,862 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-21 07:24:03,863 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2018-07-21 07:24:03,863 INFO L87 Difference]: Start difference. First operand 371 states and 566 transitions. Second operand 25 states. [2018-07-21 07:24:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 07:24:38,761 INFO L93 Difference]: Finished difference Result 1357 states and 2152 transitions. [2018-07-21 07:24:38,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-21 07:24:38,762 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 134 [2018-07-21 07:24:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 07:24:38,769 INFO L225 Difference]: With dead ends: 1357 [2018-07-21 07:24:38,769 INFO L226 Difference]: Without dead ends: 992 [2018-07-21 07:24:38,772 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 49 SyntacticMatches, 61 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1635 ImplicationChecksByTransitivity, 30.1s TimeCoverageRelationStatistics Valid=495, Invalid=1667, Unknown=0, NotChecked=0, Total=2162 [2018-07-21 07:24:38,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2018-07-21 07:24:38,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 973. [2018-07-21 07:24:38,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-07-21 07:24:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1248 transitions. [2018-07-21 07:24:38,837 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1248 transitions. Word has length 134 [2018-07-21 07:24:38,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 07:24:38,838 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1248 transitions. [2018-07-21 07:24:38,838 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-21 07:24:38,838 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1248 transitions. [2018-07-21 07:24:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-21 07:24:38,844 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 07:24:38,845 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] [2018-07-21 07:24:38,845 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 07:24:38,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1536835326, now seen corresponding path program 1 times [2018-07-21 07:24:38,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 07:24:38,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:24:38,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:24:38,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 07:24:38,847 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 07:24:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:24:39,505 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 07:24:39,505 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:24:39,505 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 07:24:39,505 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-07-21 07:24:39,506 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], [631], [633], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-07-21 07:24:39,514 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 07:24:39,515 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-21 07:25:49,964 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 07:25:49,964 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 07:25:49,965 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 07:25:49,966 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 07:25:49,966 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 07:25:49,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 07:25:49,976 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 07:25:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 07:25:50,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 07:25:50,144 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 07:25:50,345 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 07:25:50,345 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 07:25:50,350 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 07:25:50,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 07:25:50 BoogieIcfgContainer [2018-07-21 07:25:50,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 07:25:50,353 INFO L168 Benchmark]: Toolchain (without parser) took 250891.77 ms. Allocated memory was 304.1 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 248.5 MB in the beginning and 505.9 MB in the end (delta: -257.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-21 07:25:50,354 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 304.1 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 07:25:50,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.92 ms. Allocated memory is still 304.1 MB. Free memory was 247.5 MB in the beginning and 214.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:25:50,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.40 ms. Allocated memory is still 304.1 MB. Free memory was 214.5 MB in the beginning and 208.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:25:50,355 INFO L168 Benchmark]: Boogie Preprocessor took 79.22 ms. Allocated memory is still 304.1 MB. Free memory was 208.5 MB in the beginning and 204.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. [2018-07-21 07:25:50,357 INFO L168 Benchmark]: RCFGBuilder took 3746.04 ms. Allocated memory was 304.1 MB in the beginning and 471.9 MB in the end (delta: 167.8 MB). Free memory was 204.5 MB in the beginning and 330.0 MB in the end (delta: -125.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 5.3 GB. [2018-07-21 07:25:50,358 INFO L168 Benchmark]: TraceAbstraction took 246180.18 ms. Allocated memory was 471.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 328.5 MB in the beginning and 505.9 MB in the end (delta: -177.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 07:25:50,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 304.1 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 729.92 ms. Allocated memory is still 304.1 MB. Free memory was 247.5 MB in the beginning and 214.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 133.40 ms. Allocated memory is still 304.1 MB. Free memory was 214.5 MB in the beginning and 208.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 79.22 ms. Allocated memory is still 304.1 MB. Free memory was 208.5 MB in the beginning and 204.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3746.04 ms. Allocated memory was 304.1 MB in the beginning and 471.9 MB in the end (delta: 167.8 MB). Free memory was 204.5 MB in the beginning and 330.0 MB in the end (delta: -125.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 246180.18 ms. Allocated memory was 471.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 328.5 MB in the beginning and 505.9 MB in the end (delta: -177.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 511]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 511). Cancelled while BasicCegarLoop was analyzing trace of length 172 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, 246.1s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 39.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 580 SDtfs, 3633 SDslu, 842 SDs, 0 SdLazy, 3730 SolverSat, 718 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 175 GetRequests, 57 SyntacticMatches, 64 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1635 ImplicationChecksByTransitivity, 30.7s 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, 157.8s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9942405801131561 AbsIntWeakeningRatio, 0.20300751879699247 AbsIntAvgWeakeningVarsNumRemoved, 68.3157894736842 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, 1.3s InterpolantComputationTime, 514 NumberOfCodeBlocks, 514 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 344796 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_label01_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_07-25-50-375.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem02_label01_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_07-25-50-375.csv Completed graceful shutdown