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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:18:18,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:18:18,902 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:18:18,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:18:18,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:18:18,920 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:18:18,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:18:18,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:18:18,925 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:18:18,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:18:18,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:18:18,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:18:18,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:18:18,929 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:18:18,930 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:18:18,931 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:18:18,932 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:18:18,934 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:18:18,936 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:18:18,937 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:18:18,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:18:18,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:18:18,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 10:18:18,952 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:18:18,982 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:18:18,982 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:18:18,986 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:18:18,986 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:18:18,986 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:18:18,987 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:18:18,987 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:18:18,987 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:18:18,987 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:18:18,987 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:18:18,987 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:18:18,988 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:18:18,988 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:18:18,989 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:18:18,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:18:18,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:18:18,989 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:18:18,989 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:18:18,989 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:18:18,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:18:18,990 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:18:18,990 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:18:18,990 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:18:18,990 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:18:18,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:18:18,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:18:18,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:18:18,991 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:18:18,991 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:18:18,992 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:18:18,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:18:18,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:18:18,992 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:18:18,992 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:18:18,993 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:18:19,035 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:18:19,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:18:19,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:18:19,053 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:18:19,053 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:18:19,054 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-09-19 10:18:19,392 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7704877/6d1320a1c01847ce9932de1e36c26906/FLAGf2712843c [2018-09-19 10:18:19,861 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:18:19,862 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-09-19 10:18:19,901 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7704877/6d1320a1c01847ce9932de1e36c26906/FLAGf2712843c [2018-09-19 10:18:19,924 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a7704877/6d1320a1c01847ce9932de1e36c26906 [2018-09-19 10:18:19,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:18:19,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:18:19,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:18:19,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:18:19,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:18:19,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:18:19" (1/1) ... [2018-09-19 10:18:19,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:19, skipping insertion in model container [2018-09-19 10:18:19,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:18:19" (1/1) ... [2018-09-19 10:18:19,971 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:18:21,296 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:18:21,318 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:18:21,957 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:18:22,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22 WrapperNode [2018-09-19 10:18:22,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:18:22,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:18:22,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:18:22,215 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:18:22,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:22,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:22,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:18:22,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:18:22,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:18:22,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:18:23,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (1/1) ... [2018-09-19 10:18:23,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:18:23,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:18:23,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:18:23,452 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:18:23,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (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 10:18:23,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:18:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:18:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:18:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:18:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:18:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:18:23,533 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:18:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:18:23,533 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:18:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:18:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:18:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:18:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:18:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:18:34,457 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:18:34,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:18:34 BoogieIcfgContainer [2018-09-19 10:18:34,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:18:34,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:18:34,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:18:34,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:18:34,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:18:19" (1/3) ... [2018-09-19 10:18:34,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:18:34, skipping insertion in model container [2018-09-19 10:18:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:18:22" (2/3) ... [2018-09-19 10:18:34,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:18:34, skipping insertion in model container [2018-09-19 10:18:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:18:34" (3/3) ... [2018-09-19 10:18:34,467 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label05_true-unreach-call.c [2018-09-19 10:18:34,478 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:18:34,489 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:18:34,551 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:18:34,552 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:18:34,552 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:18:34,552 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:18:34,552 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:18:34,552 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:18:34,553 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:18:34,553 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:18:34,553 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:18:34,594 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 10:18:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-19 10:18:34,605 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:18:34,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:18:34,608 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:18:34,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1226611092, now seen corresponding path program 1 times [2018-09-19 10:18:34,619 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:18:34,620 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 67 with the following transitions: [2018-09-19 10:18:34,624 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 10:18:34,691 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:18:34,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:18:36,874 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:18:36,876 INFO L272 AbstractInterpreter]: Visited 65 different actions 65 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:18:36,899 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:18:37,791 INFO L232 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 78.07% of their original sizes. [2018-09-19 10:18:37,791 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:18:38,167 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:18:38,170 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:18:38,170 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:18:38,170 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:18:38,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:18:38,185 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:18:38,186 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:18:38,189 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 10:18:57,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:18:57,390 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 10:18:57,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:18:57,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-09-19 10:18:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:18:57,453 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 10:18:57,454 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 10:18:57,472 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:18:57,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 10:18:57,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 10:18:57,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 10:18:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 10:18:57,705 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 66 [2018-09-19 10:18:57,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:18:57,707 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 10:18:57,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:18:57,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 10:18:57,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-19 10:18:57,724 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:18:57,724 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:18:57,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:18:57,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1332120426, now seen corresponding path program 1 times [2018-09-19 10:18:57,726 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:18:57,726 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-09-19 10:18:57,727 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:18:57,738 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:18:57,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:19:02,968 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:19:02,969 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:19:03,007 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:19:04,172 INFO L232 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 76.46% of their original sizes. [2018-09-19 10:19:04,172 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:19:05,210 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:19:05,211 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:19:05,211 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:19:05,211 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:19:05,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:19:05,213 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:19:05,213 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:19:05,214 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 14 states. [2018-09-19 10:20:01,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:20:01,861 INFO L93 Difference]: Finished difference Result 5514 states and 10027 transitions. [2018-09-19 10:20:01,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 10:20:01,868 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 142 [2018-09-19 10:20:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:20:01,892 INFO L225 Difference]: With dead ends: 5514 [2018-09-19 10:20:01,892 INFO L226 Difference]: Without dead ends: 4684 [2018-09-19 10:20:01,899 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 10:20:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2018-09-19 10:20:02,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4681. [2018-09-19 10:20:02,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2018-09-19 10:20:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 5484 transitions. [2018-09-19 10:20:02,037 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 5484 transitions. Word has length 142 [2018-09-19 10:20:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:20:02,038 INFO L480 AbstractCegarLoop]: Abstraction has 4681 states and 5484 transitions. [2018-09-19 10:20:02,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:20:02,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 5484 transitions. [2018-09-19 10:20:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-19 10:20:02,045 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:20:02,046 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:20:02,046 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:20:02,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1950012650, now seen corresponding path program 1 times [2018-09-19 10:20:02,046 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:20:02,047 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-09-19 10:20:02,047 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:20:02,058 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:20:02,059 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:20:07,486 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:20:18,828 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:20:18,829 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:20:18,836 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:20:20,016 INFO L232 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 75.98% of their original sizes. [2018-09-19 10:20:20,016 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:20:20,479 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:20:20,479 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:20:20,480 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:20:20,480 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:20:20,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:20:20,481 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:20:20,481 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:20:20,481 INFO L87 Difference]: Start difference. First operand 4681 states and 5484 transitions. Second operand 12 states. [2018-09-19 10:21:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:21:01,810 INFO L93 Difference]: Finished difference Result 6286 states and 8585 transitions. [2018-09-19 10:21:01,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:21:01,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 212 [2018-09-19 10:21:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:21:01,835 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 10:21:01,835 INFO L226 Difference]: Without dead ends: 5456 [2018-09-19 10:21:01,840 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:21:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-09-19 10:21:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5451. [2018-09-19 10:21:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5451 states. [2018-09-19 10:21:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6269 transitions. [2018-09-19 10:21:01,996 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6269 transitions. Word has length 212 [2018-09-19 10:21:01,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:21:01,997 INFO L480 AbstractCegarLoop]: Abstraction has 5451 states and 6269 transitions. [2018-09-19 10:21:01,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:21:01,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6269 transitions. [2018-09-19 10:21:02,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-19 10:21:02,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:21:02,006 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:02,006 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:21:02,007 INFO L82 PathProgramCache]: Analyzing trace with hash -435630046, now seen corresponding path program 1 times [2018-09-19 10:21:02,007 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:21:02,007 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-19 10:21:02,008 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:21:02,019 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:21:02,019 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:21:08,221 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:21:20,072 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:21:20,072 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:21:20,079 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:21:21,280 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 75.96% of their original sizes. [2018-09-19 10:21:21,280 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:21:21,852 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:21:21,852 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:21:21,853 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:21:21,853 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:21:21,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:21:21,854 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:21:21,854 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:21:21,854 INFO L87 Difference]: Start difference. First operand 5451 states and 6269 transitions. Second operand 14 states. [2018-09-19 10:22:05,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:22:05,702 INFO L93 Difference]: Finished difference Result 7157 states and 9570 transitions. [2018-09-19 10:22:05,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:22:05,703 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 216 [2018-09-19 10:22:05,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:22:05,729 INFO L225 Difference]: With dead ends: 7157 [2018-09-19 10:22:05,729 INFO L226 Difference]: Without dead ends: 6327 [2018-09-19 10:22:05,734 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 228 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:22:05,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2018-09-19 10:22:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6225. [2018-09-19 10:22:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6225 states. [2018-09-19 10:22:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 7083 transitions. [2018-09-19 10:22:05,875 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 7083 transitions. Word has length 216 [2018-09-19 10:22:05,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:22:05,876 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 7083 transitions. [2018-09-19 10:22:05,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:22:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 7083 transitions. [2018-09-19 10:22:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-19 10:22:05,882 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:22:05,882 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:05,883 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:22:05,883 INFO L82 PathProgramCache]: Analyzing trace with hash 214012780, now seen corresponding path program 1 times [2018-09-19 10:22:05,883 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:22:05,883 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 289 with the following transitions: [2018-09-19 10:22:05,884 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2295], [2297], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:22:05,888 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:22:05,889 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:22:12,565 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:22:28,118 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:22:28,118 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 10:22:28,124 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:22:29,712 INFO L232 lantSequenceWeakener]: Weakened 286 states. On average, predicates are now at 75.75% of their original sizes. [2018-09-19 10:22:29,713 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:22:30,505 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:22:30,505 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:22:30,505 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-19 10:22:30,505 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:22:30,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-19 10:22:30,506 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-19 10:22:30,507 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:22:30,507 INFO L87 Difference]: Start difference. First operand 6225 states and 7083 transitions. Second operand 17 states. Received shutdown request... [2018-09-19 10:22:35,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 10:22:35,613 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:22:35,618 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:22:35,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:22:35 BoogieIcfgContainer [2018-09-19 10:22:35,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:22:35,620 INFO L168 Benchmark]: Toolchain (without parser) took 255680.73 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 951.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:35,621 INFO L168 Benchmark]: CDTParser took 0.26 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 10:22:35,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2269.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:35,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 296.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:35,624 INFO L168 Benchmark]: Boogie Preprocessor took 940.57 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 907.5 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:35,625 INFO L168 Benchmark]: RCFGBuilder took 11006.75 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 650.5 MB). Peak memory consumption was 650.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:35,625 INFO L168 Benchmark]: TraceAbstraction took 241159.59 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 286.1 MB. Max. memory is 7.1 GB. [2018-09-19 10:22:35,631 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2269.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 296.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 940.57 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 907.5 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11006.75 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 650.5 MB). Peak memory consumption was 650.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241159.59 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 3.2 GB in the end (delta: -1.5 GB). Peak memory consumption was 286.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (6225states) and FLOYD_HOARE automaton (currently 22 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (452 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 241.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 166.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3374 SDtfs, 14524 SDslu, 2203 SDs, 0 SdLazy, 44005 SolverSat, 4538 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 150.8s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 974 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 64.6s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9951467592980106 AbsIntWeakeningRatio, 0.11425462459194777 AbsIntAvgWeakeningVarsNumRemoved, 1058.4602829162134 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 112 StatesRemovedByMinimization, 4 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: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label05_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-22-35-647.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label05_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-22-35-647.csv Completed graceful shutdown