java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 05:01:08,821 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:08,823 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:08,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:08,836 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:08,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:08,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:08,840 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:08,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:08,843 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:08,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:08,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:08,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:08,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:08,848 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:08,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:08,849 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:08,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:08,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:08,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:08,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:08,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:08,860 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 05:01:08,877 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-19 05:01:08,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:08,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:08,911 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:08,912 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:08,912 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:08,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:08,912 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:08,913 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:08,914 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:08,914 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:08,914 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:08,914 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:08,915 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:08,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:08,916 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:08,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:08,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:08,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:08,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:08,919 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:08,919 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:08,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:08,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:08,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:08,920 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:08,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:08,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:08,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:08,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:08,921 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:08,922 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:08,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:08,922 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:08,922 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:08,922 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:08,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:09,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:09,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:09,013 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:09,013 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:09,014 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-19 05:01:09,376 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe4df8e6/1183f4f47fee4b18b8c51af9377fc94b/FLAG2d3092029 [2018-09-19 05:01:09,581 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:09,582 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-19 05:01:09,592 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe4df8e6/1183f4f47fee4b18b8c51af9377fc94b/FLAG2d3092029 [2018-09-19 05:01:09,606 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe4df8e6/1183f4f47fee4b18b8c51af9377fc94b [2018-09-19 05:01:09,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:09,625 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:09,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:09,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:09,636 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:09,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:09,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13108eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09, skipping insertion in model container [2018-09-19 05:01:09,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:09,651 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:09,886 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:09,919 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:09,964 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:09,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09 WrapperNode [2018-09-19 05:01:09,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:09,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:09,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:09,997 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:10,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:10,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:10,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:10,055 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:10,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... [2018-09-19 05:01:10,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:10,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:10,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:10,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:10,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:10,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:10,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:10,297 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-09-19 05:01:10,297 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-09-19 05:01:10,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:10,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:10,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:10,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:10,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 05:01:10,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 05:01:10,973 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:10,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:10 BoogieIcfgContainer [2018-09-19 05:01:10,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:10,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:10,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:10,979 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:10,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:09" (1/3) ... [2018-09-19 05:01:10,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689e14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:10, skipping insertion in model container [2018-09-19 05:01:10,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:09" (2/3) ... [2018-09-19 05:01:10,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689e14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:10, skipping insertion in model container [2018-09-19 05:01:10,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:10" (3/3) ... [2018-09-19 05:01:10,983 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-09-19 05:01:10,995 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:11,004 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:11,064 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:11,065 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:11,065 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:11,065 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:11,065 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:11,065 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:11,067 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:11,067 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:11,067 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-09-19 05:01:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 05:01:11,101 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:11,102 INFO L376 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] [2018-09-19 05:01:11,103 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:11,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1773514428, now seen corresponding path program 1 times [2018-09-19 05:01:11,112 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:11,113 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-09-19 05:01:11,116 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [30], [32], [35], [39], [65], [67], [70], [76], [82], [86], [108], [109], [113], [126], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:11,157 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:11,157 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:11,252 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:11,254 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 05:01:11,265 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:11,319 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 97.5% of their original sizes. [2018-09-19 05:01:11,319 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:11,335 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:11,336 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:11,337 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:11,337 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:11,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:11,349 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:11,349 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:11,352 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2018-09-19 05:01:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:11,419 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2018-09-19 05:01:11,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:11,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-09-19 05:01:11,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:11,430 INFO L225 Difference]: With dead ends: 97 [2018-09-19 05:01:11,430 INFO L226 Difference]: Without dead ends: 45 [2018-09-19 05:01:11,435 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-09-19 05:01:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-09-19 05:01:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-19 05:01:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-09-19 05:01:11,474 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 27 [2018-09-19 05:01:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:11,475 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-09-19 05:01:11,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-09-19 05:01:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-19 05:01:11,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:11,477 INFO L376 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] [2018-09-19 05:01:11,478 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:11,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1145549408, now seen corresponding path program 1 times [2018-09-19 05:01:11,479 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:11,479 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-09-19 05:01:11,479 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:11,482 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:11,483 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:11,490 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:11,490 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 05:01:11,528 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:11,554 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 91.67% of their original sizes. [2018-09-19 05:01:11,555 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:11,569 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:11,569 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:11,570 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:11,570 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:11,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:11,571 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:11,571 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:11,572 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 3 states. [2018-09-19 05:01:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:11,632 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2018-09-19 05:01:11,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:11,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-09-19 05:01:11,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:11,635 INFO L225 Difference]: With dead ends: 84 [2018-09-19 05:01:11,635 INFO L226 Difference]: Without dead ends: 48 [2018-09-19 05:01:11,637 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-19 05:01:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-09-19 05:01:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-19 05:01:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2018-09-19 05:01:11,645 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 34 [2018-09-19 05:01:11,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:11,646 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2018-09-19 05:01:11,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2018-09-19 05:01:11,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 05:01:11,647 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:11,648 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:11,648 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:11,648 INFO L82 PathProgramCache]: Analyzing trace with hash 381128697, now seen corresponding path program 1 times [2018-09-19 05:01:11,649 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:11,649 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 05:01:11,649 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:11,652 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:11,652 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:11,710 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:11,710 INFO L272 AbstractInterpreter]: Visited 20 different actions 40 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-09-19 05:01:11,727 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:11,763 INFO L232 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 80.72% of their original sizes. [2018-09-19 05:01:11,763 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:11,944 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:11,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:11,945 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 05:01:11,945 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:11,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 05:01:11,946 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 05:01:11,946 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-19 05:01:11,946 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 9 states. [2018-09-19 05:01:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:12,570 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2018-09-19 05:01:12,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 05:01:12,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-09-19 05:01:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:12,574 INFO L225 Difference]: With dead ends: 107 [2018-09-19 05:01:12,575 INFO L226 Difference]: Without dead ends: 75 [2018-09-19 05:01:12,576 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-19 05:01:12,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-19 05:01:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 53. [2018-09-19 05:01:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-19 05:01:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2018-09-19 05:01:12,594 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 37 [2018-09-19 05:01:12,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:12,594 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2018-09-19 05:01:12,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 05:01:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2018-09-19 05:01:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 05:01:12,596 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:12,596 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:12,598 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:12,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1613016009, now seen corresponding path program 1 times [2018-09-19 05:01:12,598 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:12,598 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 05:01:12,599 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:12,602 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:12,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:12,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:12,632 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-09-19 05:01:12,643 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:12,686 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 78.01% of their original sizes. [2018-09-19 05:01:12,686 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:12,894 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:12,895 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:12,895 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 05:01:12,895 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:12,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 05:01:12,897 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 05:01:12,897 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-09-19 05:01:12,898 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand 12 states. [2018-09-19 05:01:13,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:13,882 INFO L93 Difference]: Finished difference Result 127 states and 163 transitions. [2018-09-19 05:01:13,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 05:01:13,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-09-19 05:01:13,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:13,884 INFO L225 Difference]: With dead ends: 127 [2018-09-19 05:01:13,884 INFO L226 Difference]: Without dead ends: 85 [2018-09-19 05:01:13,885 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-09-19 05:01:13,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-19 05:01:13,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2018-09-19 05:01:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-19 05:01:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2018-09-19 05:01:13,895 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 37 [2018-09-19 05:01:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:13,895 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2018-09-19 05:01:13,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 05:01:13,896 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2018-09-19 05:01:13,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-19 05:01:13,897 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:13,897 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:13,897 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:13,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1402087609, now seen corresponding path program 1 times [2018-09-19 05:01:13,898 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:13,898 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-09-19 05:01:13,898 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [37], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:13,901 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:13,901 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:13,926 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:13,926 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 51 variables. [2018-09-19 05:01:13,962 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:13,998 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 78.01% of their original sizes. [2018-09-19 05:01:13,998 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:14,178 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:14,178 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:14,179 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 05:01:14,179 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:14,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 05:01:14,180 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 05:01:14,180 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-09-19 05:01:14,181 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 11 states. [2018-09-19 05:01:14,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:14,724 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2018-09-19 05:01:14,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 05:01:14,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-09-19 05:01:14,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:14,727 INFO L225 Difference]: With dead ends: 120 [2018-09-19 05:01:14,727 INFO L226 Difference]: Without dead ends: 76 [2018-09-19 05:01:14,728 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-19 05:01:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-19 05:01:14,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2018-09-19 05:01:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-19 05:01:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2018-09-19 05:01:14,740 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 37 [2018-09-19 05:01:14,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:14,740 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2018-09-19 05:01:14,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 05:01:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2018-09-19 05:01:14,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-19 05:01:14,742 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:14,742 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 05:01:14,742 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:14,744 INFO L82 PathProgramCache]: Analyzing trace with hash -976115869, now seen corresponding path program 1 times [2018-09-19 05:01:14,744 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:14,745 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-19 05:01:14,745 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:14,747 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:14,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:14,780 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:14,780 INFO L272 AbstractInterpreter]: Visited 21 different actions 86 times. Merged at 7 different actions 51 times. Widened at 2 different actions 6 times. Found 2 fixpoints after 2 different actions. Largest state had 53 variables. [2018-09-19 05:01:14,814 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:14,850 INFO L232 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 79.24% of their original sizes. [2018-09-19 05:01:14,851 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:14,965 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:14,966 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:14,966 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 05:01:14,966 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:14,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 05:01:14,967 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 05:01:14,968 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-09-19 05:01:14,968 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand 10 states. [2018-09-19 05:01:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:15,210 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2018-09-19 05:01:15,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 05:01:15,211 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-09-19 05:01:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:15,213 INFO L225 Difference]: With dead ends: 125 [2018-09-19 05:01:15,214 INFO L226 Difference]: Without dead ends: 91 [2018-09-19 05:01:15,215 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-19 05:01:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-09-19 05:01:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 64. [2018-09-19 05:01:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 05:01:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2018-09-19 05:01:15,231 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 41 [2018-09-19 05:01:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:15,232 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2018-09-19 05:01:15,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 05:01:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-09-19 05:01:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-19 05:01:15,233 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:15,233 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:15,233 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:15,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1324706721, now seen corresponding path program 1 times [2018-09-19 05:01:15,234 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:15,234 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-19 05:01:15,234 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [22], [26], [28], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:15,236 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:15,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:15,290 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:15,291 INFO L272 AbstractInterpreter]: Visited 33 different actions 200 times. Merged at 19 different actions 143 times. Widened at 3 different actions 10 times. Found 13 fixpoints after 4 different actions. Largest state had 53 variables. [2018-09-19 05:01:15,298 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:15,328 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 77.46% of their original sizes. [2018-09-19 05:01:15,328 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:15,515 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:15,515 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:15,516 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 05:01:15,516 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:15,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 05:01:15,516 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 05:01:15,516 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-09-19 05:01:15,517 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand 13 states. [2018-09-19 05:01:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:16,188 INFO L93 Difference]: Finished difference Result 112 states and 142 transitions. [2018-09-19 05:01:16,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 05:01:16,188 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-09-19 05:01:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:16,190 INFO L225 Difference]: With dead ends: 112 [2018-09-19 05:01:16,190 INFO L226 Difference]: Without dead ends: 53 [2018-09-19 05:01:16,191 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2018-09-19 05:01:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-19 05:01:16,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-09-19 05:01:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-19 05:01:16,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-09-19 05:01:16,198 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 41 [2018-09-19 05:01:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:16,199 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-09-19 05:01:16,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 05:01:16,199 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-09-19 05:01:16,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 05:01:16,200 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:16,200 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 05:01:16,201 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:16,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1521687200, now seen corresponding path program 1 times [2018-09-19 05:01:16,201 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:16,201 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-19 05:01:16,202 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [20], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:16,204 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:16,204 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:16,253 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:16,254 INFO L272 AbstractInterpreter]: Visited 24 different actions 130 times. Merged at 12 different actions 92 times. Widened at 3 different actions 10 times. Found 3 fixpoints after 3 different actions. Largest state had 53 variables. [2018-09-19 05:01:16,259 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:16,281 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 78.67% of their original sizes. [2018-09-19 05:01:16,281 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:16,410 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:16,410 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:16,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 05:01:16,411 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:16,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 05:01:16,412 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 05:01:16,412 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-19 05:01:16,413 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 10 states. [2018-09-19 05:01:16,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:16,617 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2018-09-19 05:01:16,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 05:01:16,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-09-19 05:01:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:16,619 INFO L225 Difference]: With dead ends: 108 [2018-09-19 05:01:16,619 INFO L226 Difference]: Without dead ends: 76 [2018-09-19 05:01:16,620 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-19 05:01:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-19 05:01:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2018-09-19 05:01:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-19 05:01:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2018-09-19 05:01:16,631 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 42 [2018-09-19 05:01:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:16,631 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2018-09-19 05:01:16,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 05:01:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2018-09-19 05:01:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-19 05:01:16,632 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:16,632 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 05:01:16,633 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash 779135390, now seen corresponding path program 1 times [2018-09-19 05:01:16,633 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:16,633 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-09-19 05:01:16,634 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [57], [61], [67], [70], [76], [82], [86], [93], [95], [97], [102], [108], [109], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-09-19 05:01:16,635 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:16,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:16,698 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:16,698 INFO L272 AbstractInterpreter]: Visited 40 different actions 259 times. Merged at 25 different actions 190 times. Widened at 4 different actions 14 times. Found 3 fixpoints after 3 different actions. Largest state had 53 variables. [2018-09-19 05:01:16,737 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:16,769 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:16,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:16 BoogieIcfgContainer [2018-09-19 05:01:16,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:16,770 INFO L168 Benchmark]: Toolchain (without parser) took 7150.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -454.4 MB). Peak memory consumption was 307.3 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:16,772 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:16,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:16,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.55 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:16,774 INFO L168 Benchmark]: Boogie Preprocessor took 45.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:16,775 INFO L168 Benchmark]: RCFGBuilder took 873.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:16,776 INFO L168 Benchmark]: TraceAbstraction took 5794.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 334.6 MB). Peak memory consumption was 334.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:16,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 370.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.55 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 873.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5794.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 334.6 MB). Peak memory consumption was 334.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L79] CALL char A [2 + 2 + 4 +1]; [L79] RET char A [2 + 2 + 4 +1]; [L81] int i = 0; [L81] COND TRUE i < 2 + 2 + 4 [L82] CALL A[i] = __VERIFIER_nondet_char() [L82] RET A[i] = __VERIFIER_nondet_char() [L81] i++ [L81] i++ [L81] COND FALSE !(i < 2 + 2 + 4) [L85] CALL A[2 + 2 + 4] = 0 [L85] RET A[2 + 2 + 4] = 0 [L86] CALL parse_expression_list (A) [L50] int start=0, i=-1, j=-1; [L50] int start=0, i=-1, j=-1; [L50] int start=0, i=-1, j=-1; [L51] CALL char str2[2]; [L51] RET char str2[2]; [L52] COND FALSE !(!str) [L54] i++ [L54] i++ [L55] CALL str[i] [L55] RET str[i] [L56] case 0: [L56] COND FALSE !(case 0:) [L74] CALL, EXPR str[i] [L74] RET, EXPR str[i] [L74] COND TRUE str[i] != 0 [L54] i++ [L54] i++ [L55] CALL str[i] [L55] RET str[i] [L56] case 0: [L56] COND TRUE case 0: [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] (str[start] == ' ') || (str[start] == '\t') [L57] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] (str[start] == ' ') || (str[start] == '\t') [L57] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L58] CALL, EXPR str[start] [L58] RET, EXPR str[start] [L58] COND TRUE str[start] == '"' [L58] start++ [L58] start++ [L59] j = i-1 [L60] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L60] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L61] (0 < j) && (str[j] == '"') [L61] COND TRUE (0 < j) && (str[j] == '"') [L61] CALL, EXPR str[j] [L61] RET, EXPR str[j] [L61] (0 < j) && (str[j] == '"') [L61] COND TRUE (0 < j) && (str[j] == '"') [L61] j-- [L61] j-- [L62] COND TRUE start<=j [L63] COND FALSE !(j-start+1>=2) [L66] FCALL r_strncpy(str2, str+start, j-start+1) [L67] CALL __VERIFIER_assert(j - start + 1 < 2) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. UNKNOWN Result, 5.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 378 SDtfs, 644 SDslu, 1486 SDs, 0 SdLazy, 1090 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 316 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 9 AbstIntIterations, 8 AbstIntStrong, 0.8153871302308798 AbsIntWeakeningRatio, 2.298611111111111 AbsIntAvgWeakeningVarsNumRemoved, 4.59375 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 112 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_05-01-16-797.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_05-01-16-797.csv Received shutdown request...