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/Problem10_label47_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 02:10:01,824 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 02:10:01,827 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 02:10:01,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 02:10:01,842 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 02:10:01,845 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 02:10:01,847 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 02:10:01,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 02:10:01,852 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 02:10:01,854 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 02:10:01,855 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 02:10:01,855 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 02:10:01,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 02:10:01,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 02:10:01,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 02:10:01,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 02:10:01,864 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 02:10:01,866 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 02:10:01,876 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 02:10:01,878 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 02:10:01,879 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 02:10:01,880 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 02:10:01,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 02:10:01,899 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 02:10:01,931 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 02:10:01,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 02:10:01,932 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 02:10:01,932 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 02:10:01,933 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 02:10:01,933 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 02:10:01,933 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 02:10:01,933 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 02:10:01,933 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 02:10:01,934 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 02:10:01,934 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 02:10:01,935 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 02:10:01,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 02:10:01,936 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 02:10:01,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 02:10:01,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 02:10:01,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 02:10:01,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 02:10:01,936 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 02:10:01,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 02:10:01,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 02:10:01,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 02:10:01,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 02:10:01,937 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 02:10:01,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 02:10:01,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 02:10:01,938 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 02:10:01,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 02:10:01,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 02:10:01,938 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 02:10:01,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 02:10:01,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 02:10:01,939 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 02:10:01,939 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 02:10:01,939 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 02:10:01,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 02:10:02,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 02:10:02,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 02:10:02,017 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 02:10:02,018 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 02:10:02,019 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label47_false-unreach-call.c [2018-07-21 02:10:02,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/085fe29a4/562dd3cdbca343e8a69b92421168e21e/FLAG9a1923e00 [2018-07-21 02:10:02,734 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 02:10:02,734 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label47_false-unreach-call.c [2018-07-21 02:10:02,763 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/085fe29a4/562dd3cdbca343e8a69b92421168e21e/FLAG9a1923e00 [2018-07-21 02:10:02,787 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/085fe29a4/562dd3cdbca343e8a69b92421168e21e [2018-07-21 02:10:02,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 02:10:02,808 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 02:10:02,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 02:10:02,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 02:10:02,820 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 02:10:02,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:10:02" (1/1) ... [2018-07-21 02:10:02,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6545fe07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:02, skipping insertion in model container [2018-07-21 02:10:02,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:10:02" (1/1) ... [2018-07-21 02:10:03,074 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 02:10:03,356 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:10:03,380 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 02:10:03,539 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:10:03,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03 WrapperNode [2018-07-21 02:10:03,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 02:10:03,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 02:10:03,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 02:10:03,603 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 02:10:03,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:03,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:03,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 02:10:03,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 02:10:03,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 02:10:03,754 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 02:10:03,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:03,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:03,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:03,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:03,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:04,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:04,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (1/1) ... [2018-07-21 02:10:04,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 02:10:04,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 02:10:04,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 02:10:04,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 02:10:04,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (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 02:10:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 02:10:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 02:10:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 02:10:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 02:10:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 02:10:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 02:10:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 02:10:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 02:10:08,656 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 02:10:08,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:10:08 BoogieIcfgContainer [2018-07-21 02:10:08,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 02:10:08,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 02:10:08,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 02:10:08,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 02:10:08,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:10:02" (1/3) ... [2018-07-21 02:10:08,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0e8b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:10:08, skipping insertion in model container [2018-07-21 02:10:08,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:10:03" (2/3) ... [2018-07-21 02:10:08,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0e8b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:10:08, skipping insertion in model container [2018-07-21 02:10:08,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:10:08" (3/3) ... [2018-07-21 02:10:08,666 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label47_false-unreach-call.c [2018-07-21 02:10:08,677 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 02:10:08,687 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 02:10:08,744 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 02:10:08,745 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 02:10:08,745 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 02:10:08,745 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 02:10:08,745 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 02:10:08,745 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 02:10:08,745 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 02:10:08,746 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 02:10:08,746 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 02:10:08,795 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-21 02:10:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-21 02:10:08,803 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:10:08,804 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] [2018-07-21 02:10:08,804 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:10:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1887172300, now seen corresponding path program 1 times [2018-07-21 02:10:08,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:10:08,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:10:08,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:10:08,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:10:08,871 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:10:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:10:09,256 WARN L169 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:10:09,372 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 02:10:09,380 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:10:09,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:10:09,381 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:10:09,385 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:10:09,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:10:09,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:10:09,405 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-07-21 02:10:10,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:10:10,976 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-07-21 02:10:10,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:10:10,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-07-21 02:10:10,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:10:11,034 INFO L225 Difference]: With dead ends: 574 [2018-07-21 02:10:11,034 INFO L226 Difference]: Without dead ends: 356 [2018-07-21 02:10:11,047 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:10:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-07-21 02:10:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-07-21 02:10:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-21 02:10:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 612 transitions. [2018-07-21 02:10:11,126 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 612 transitions. Word has length 26 [2018-07-21 02:10:11,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:10:11,126 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 612 transitions. [2018-07-21 02:10:11,127 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:10:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 612 transitions. [2018-07-21 02:10:11,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-21 02:10:11,133 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:10:11,134 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:10:11,134 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:10:11,135 INFO L82 PathProgramCache]: Analyzing trace with hash -271036101, now seen corresponding path program 1 times [2018-07-21 02:10:11,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:10:11,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:10:11,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:10:11,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:10:11,137 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:10:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:10:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-21 02:10:11,378 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:10:11,378 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:10:11,379 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 98 with the following transitions: [2018-07-21 02:10:11,382 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [522], [816], [817], [818], [819], [821], [822] [2018-07-21 02:10:11,464 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:10:11,465 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:10:15,867 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:10:19,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:10:19,898 INFO L272 AbstractInterpreter]: Visited 78 different actions 222 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 02:10:19,936 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:10:21,430 INFO L232 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 73.19% of their original sizes. [2018-07-21 02:10:21,431 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:10:22,303 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:10:22,304 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:10:22,304 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-07-21 02:10:22,304 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:10:22,307 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-21 02:10:22,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-21 02:10:22,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-07-21 02:10:22,308 INFO L87 Difference]: Start difference. First operand 356 states and 612 transitions. Second operand 12 states. [2018-07-21 02:11:00,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:11:00,961 INFO L93 Difference]: Finished difference Result 1371 states and 2484 transitions. [2018-07-21 02:11:00,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-21 02:11:00,961 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2018-07-21 02:11:00,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:11:00,971 INFO L225 Difference]: With dead ends: 1371 [2018-07-21 02:11:00,971 INFO L226 Difference]: Without dead ends: 1021 [2018-07-21 02:11:00,979 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 107 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2018-07-21 02:11:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2018-07-21 02:11:01,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1015. [2018-07-21 02:11:01,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2018-07-21 02:11:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1320 transitions. [2018-07-21 02:11:01,064 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1320 transitions. Word has length 97 [2018-07-21 02:11:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:11:01,065 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1320 transitions. [2018-07-21 02:11:01,065 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-21 02:11:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1320 transitions. [2018-07-21 02:11:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-21 02:11:01,074 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:11:01,075 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:11:01,075 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:11:01,075 INFO L82 PathProgramCache]: Analyzing trace with hash -563812937, now seen corresponding path program 1 times [2018-07-21 02:11:01,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:11:01,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:11:01,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:11:01,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:11:01,077 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:11:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:11:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-21 02:11:01,389 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:11:01,389 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:11:01,390 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-07-21 02:11:01,390 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [522], [523], [527], [531], [535], [539], [542], [816], [817], [818], [819], [821], [822] [2018-07-21 02:11:01,396 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:11:01,396 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:11:04,262 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:11:10,602 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:11:10,602 INFO L272 AbstractInterpreter]: Visited 84 different actions 324 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-07-21 02:11:10,606 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:11:12,917 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 73.05% of their original sizes. [2018-07-21 02:11:12,917 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:11:13,517 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:11:13,517 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:11:13,517 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-07-21 02:11:13,517 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:11:13,518 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-21 02:11:13,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-21 02:11:13,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-07-21 02:11:13,519 INFO L87 Difference]: Start difference. First operand 1015 states and 1320 transitions. Second operand 12 states. [2018-07-21 02:11:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:11:52,969 INFO L93 Difference]: Finished difference Result 2567 states and 3675 transitions. [2018-07-21 02:11:52,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-21 02:11:52,970 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2018-07-21 02:11:52,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:11:52,981 INFO L225 Difference]: With dead ends: 2567 [2018-07-21 02:11:52,981 INFO L226 Difference]: Without dead ends: 1702 [2018-07-21 02:11:52,986 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2018-07-21 02:11:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2018-07-21 02:11:53,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1536. [2018-07-21 02:11:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1536 states. [2018-07-21 02:11:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 1884 transitions. [2018-07-21 02:11:53,095 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 1884 transitions. Word has length 173 [2018-07-21 02:11:53,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:11:53,097 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 1884 transitions. [2018-07-21 02:11:53,097 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-21 02:11:53,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 1884 transitions. [2018-07-21 02:11:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-21 02:11:53,102 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:11:53,102 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:11:53,103 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:11:53,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1601736072, now seen corresponding path program 1 times [2018-07-21 02:11:53,103 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:11:53,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:11:53,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:11:53,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:11:53,104 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:11:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:11:53,626 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:11:53,627 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:11:53,627 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:11:53,627 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-07-21 02:11:53,628 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [558], [816], [817], [818], [819], [821], [822] [2018-07-21 02:11:53,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:11:53,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:11:56,501 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:12:11,204 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:12:11,204 INFO L272 AbstractInterpreter]: Visited 88 different actions 498 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 02:12:11,213 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:12:13,960 INFO L232 lantSequenceWeakener]: Weakened 178 states. On average, predicates are now at 73% of their original sizes. [2018-07-21 02:12:13,960 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:12:17,205 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:12:17,205 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:12:17,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-07-21 02:12:17,206 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:12:17,206 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-21 02:12:17,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-21 02:12:17,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-07-21 02:12:17,207 INFO L87 Difference]: Start difference. First operand 1536 states and 1884 transitions. Second operand 14 states. [2018-07-21 02:13:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:13:04,081 INFO L93 Difference]: Finished difference Result 3503 states and 4714 transitions. [2018-07-21 02:13:04,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-21 02:13:04,081 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 180 [2018-07-21 02:13:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:13:04,097 INFO L225 Difference]: With dead ends: 3503 [2018-07-21 02:13:04,097 INFO L226 Difference]: Without dead ends: 2117 [2018-07-21 02:13:04,102 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 141 SyntacticMatches, 26 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2018-07-21 02:13:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2018-07-21 02:13:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1793. [2018-07-21 02:13:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2018-07-21 02:13:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2176 transitions. [2018-07-21 02:13:04,217 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2176 transitions. Word has length 180 [2018-07-21 02:13:04,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:13:04,218 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2176 transitions. [2018-07-21 02:13:04,218 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-21 02:13:04,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2176 transitions. [2018-07-21 02:13:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-07-21 02:13:04,223 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:13:04,223 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:04,224 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:13:04,224 INFO L82 PathProgramCache]: Analyzing trace with hash 663991296, now seen corresponding path program 1 times [2018-07-21 02:13:04,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:13:04,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:13:04,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:13:04,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:13:04,227 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:13:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:13:04,606 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:13:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 02:13:05,046 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:13:05,098 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:13:05,099 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-07-21 02:13:05,099 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [816], [817], [818], [819], [821], [822] [2018-07-21 02:13:05,104 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:13:05,104 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:13:08,147 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:13:31,402 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:13:31,402 INFO L272 AbstractInterpreter]: Visited 124 different actions 360 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 02:13:31,413 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:13:35,136 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 72.99% of their original sizes. [2018-07-21 02:13:35,136 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:13:38,360 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:13:38,360 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:13:38,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-07-21 02:13:38,361 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:13:38,361 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-21 02:13:38,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-21 02:13:38,362 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2018-07-21 02:13:38,362 INFO L87 Difference]: Start difference. First operand 1793 states and 2176 transitions. Second operand 20 states. Received shutdown request... [2018-07-21 02:13:54,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-21 02:13:54,090 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 02:13:54,094 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 02:13:54,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:13:54 BoogieIcfgContainer [2018-07-21 02:13:54,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 02:13:54,096 INFO L168 Benchmark]: Toolchain (without parser) took 231294.32 ms. Allocated memory was 316.1 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 260.6 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 673.6 MB. Max. memory is 5.3 GB. [2018-07-21 02:13:54,097 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 316.1 MB. Free memory is still 281.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 02:13:54,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.95 ms. Allocated memory is still 316.1 MB. Free memory was 259.6 MB in the beginning and 225.7 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 5.3 GB. [2018-07-21 02:13:54,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.56 ms. Allocated memory is still 316.1 MB. Free memory was 225.7 MB in the beginning and 216.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. [2018-07-21 02:13:54,098 INFO L168 Benchmark]: Boogie Preprocessor took 299.56 ms. Allocated memory was 316.1 MB in the beginning and 495.5 MB in the end (delta: 179.3 MB). Free memory was 216.6 MB in the beginning and 461.3 MB in the end (delta: -244.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 5.3 GB. [2018-07-21 02:13:54,099 INFO L168 Benchmark]: RCFGBuilder took 4603.79 ms. Allocated memory is still 495.5 MB. Free memory was 461.3 MB in the beginning and 351.6 MB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 5.3 GB. [2018-07-21 02:13:54,099 INFO L168 Benchmark]: TraceAbstraction took 225436.82 ms. Allocated memory was 495.5 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 351.6 MB in the beginning and 1.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 585.2 MB. Max. memory is 5.3 GB. [2018-07-21 02:13:54,103 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 316.1 MB. Free memory is still 281.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 792.95 ms. Allocated memory is still 316.1 MB. Free memory was 259.6 MB in the beginning and 225.7 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 150.56 ms. Allocated memory is still 316.1 MB. Free memory was 225.7 MB in the beginning and 216.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 299.56 ms. Allocated memory was 316.1 MB in the beginning and 495.5 MB in the end (delta: 179.3 MB). Free memory was 216.6 MB in the beginning and 461.3 MB in the end (delta: -244.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 4603.79 ms. Allocated memory is still 495.5 MB. Free memory was 461.3 MB in the beginning and 351.6 MB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 225436.82 ms. Allocated memory was 495.5 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 351.6 MB in the beginning and 1.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 585.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 61). Cancelled while BasicCegarLoop was constructing difference of abstraction (1793states) and interpolant automaton (currently 17 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (805 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 225.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 142.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 814 SDtfs, 6499 SDslu, 1006 SDs, 0 SdLazy, 4298 SolverSat, 1427 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.1s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 714 GetRequests, 587 SyntacticMatches, 30 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1793occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 61.6s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9932598844082487 AbsIntWeakeningRatio, 0.14803625377643503 AbsIntAvgWeakeningVarsNumRemoved, 138.702416918429 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 496 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 687 ConstructedInterpolants, 0 QuantifiedInterpolants, 321241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 301/352 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/Problem10_label47_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_02-13-54-119.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem10_label47_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_02-13-54-119.csv Completed graceful shutdown