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/loops/trex04_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:19:57,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:19:57,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:19:57,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:19:57,046 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:19:57,047 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:19:57,048 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:19:57,050 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:19:57,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:19:57,052 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:19:57,053 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:19:57,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:19:57,054 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:19:57,056 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:19:57,057 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:19:57,058 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:19:57,058 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:19:57,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:19:57,062 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:19:57,064 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:19:57,065 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:19:57,066 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:19:57,069 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 17:19:57,069 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 17:19:57,070 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 17:19:57,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 17:19:57,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 17:19:57,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 17:19:57,073 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 17:19:57,075 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 17:19:57,075 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 17:19:57,078 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 17:19:57,078 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 17:19:57,079 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 17:19:57,080 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 17:19:57,080 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 17:19:57,081 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 [2018-09-15 17:19:57,115 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:19:57,116 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:19:57,120 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:19:57,120 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:19:57,120 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:19:57,120 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:19:57,121 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:19:57,121 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:19:57,121 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:19:57,121 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:19:57,122 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:19:57,122 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:19:57,123 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:19:57,123 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:19:57,123 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:19:57,123 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:19:57,123 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:19:57,124 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:19:57,124 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:19:57,124 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:19:57,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:19:57,125 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:19:57,125 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:19:57,125 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:19:57,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:19:57,126 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:19:57,126 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:19:57,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:19:57,127 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:19:57,127 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:19:57,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:19:57,127 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:19:57,128 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:19:57,128 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:19:57,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:19:57,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:19:57,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:19:57,226 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:19:57,227 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:19:57,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-09-15 17:19:57,619 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9772d1631/ec632d1916ba4fe1a9f32323756a1b09/FLAGb0461ee5f [2018-09-15 17:19:57,781 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:19:57,782 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-09-15 17:19:57,790 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9772d1631/ec632d1916ba4fe1a9f32323756a1b09/FLAGb0461ee5f [2018-09-15 17:19:57,808 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9772d1631/ec632d1916ba4fe1a9f32323756a1b09 [2018-09-15 17:19:57,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:19:57,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:19:57,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:57,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:19:57,833 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:19:57,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:57" (1/1) ... [2018-09-15 17:19:57,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64024991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:57, skipping insertion in model container [2018-09-15 17:19:57,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:57" (1/1) ... [2018-09-15 17:19:57,850 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:19:58,091 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:58,113 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:19:58,122 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:58,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58 WrapperNode [2018-09-15 17:19:58,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:58,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:58,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:19:58,141 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:19:58,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:58,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:19:58,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:19:58,169 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:19:58,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (1/1) ... [2018-09-15 17:19:58,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:19:58,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:19:58,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:19:58,209 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:19:58,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (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 [2018-09-15 17:19:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:19:58,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:19:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-09-15 17:19:58,289 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-09-15 17:19:58,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:19:58,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:19:58,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:19:58,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:19:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:19:58,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:19:58,913 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:19:58,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:58 BoogieIcfgContainer [2018-09-15 17:19:58,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:19:58,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:19:58,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:19:58,918 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:19:58,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:19:57" (1/3) ... [2018-09-15 17:19:58,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4cba97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:58, skipping insertion in model container [2018-09-15 17:19:58,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:58" (2/3) ... [2018-09-15 17:19:58,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4cba97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:58, skipping insertion in model container [2018-09-15 17:19:58,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:58" (3/3) ... [2018-09-15 17:19:58,922 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-09-15 17:19:58,932 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:19:58,941 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:19:58,992 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:19:58,993 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:19:58,993 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:19:58,993 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:19:58,993 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:19:58,993 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:19:58,993 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:19:58,993 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:19:58,994 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:19:59,012 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-09-15 17:19:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 17:19:59,020 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:59,021 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:59,022 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:59,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1294249659, now seen corresponding path program 1 times [2018-09-15 17:19:59,031 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:59,032 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 17:19:59,034 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [60], [64], [67], [69], [75], [76], [77], [83] [2018-09-15 17:19:59,094 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:59,095 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:59,168 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:19:59,181 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:19:59,183 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 17:19:59,202 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:19:59,286 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:19:59,287 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:19:59,401 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:19:59,403 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:19:59,403 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 17:19:59,403 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:19:59,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 17:19:59,414 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 17:19:59,414 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 17:19:59,417 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2018-09-15 17:19:59,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:19:59,648 INFO L93 Difference]: Finished difference Result 60 states and 84 transitions. [2018-09-15 17:19:59,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 17:19:59,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-09-15 17:19:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:19:59,661 INFO L225 Difference]: With dead ends: 60 [2018-09-15 17:19:59,661 INFO L226 Difference]: Without dead ends: 37 [2018-09-15 17:19:59,666 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 17:19:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-09-15 17:19:59,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2018-09-15 17:19:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-15 17:19:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2018-09-15 17:19:59,712 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2018-09-15 17:19:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:19:59,712 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2018-09-15 17:19:59,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 17:19:59,713 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-09-15 17:19:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 17:19:59,715 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:59,715 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:59,716 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:59,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1720438887, now seen corresponding path program 1 times [2018-09-15 17:19:59,716 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:59,717 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 17:19:59,717 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [52], [56], [64], [67], [69], [75], [76], [77], [83] [2018-09-15 17:19:59,719 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:59,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:59,724 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:19:59,745 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:19:59,746 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 17:19:59,793 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:19:59,829 INFO L232 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:19:59,829 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:00,164 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:00,164 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:00,164 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-15 17:20:00,165 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:00,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-15 17:20:00,166 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-15 17:20:00,166 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-15 17:20:00,167 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 8 states. [2018-09-15 17:20:00,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:00,734 INFO L93 Difference]: Finished difference Result 41 states and 54 transitions. [2018-09-15 17:20:00,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-15 17:20:00,735 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-09-15 17:20:00,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:00,737 INFO L225 Difference]: With dead ends: 41 [2018-09-15 17:20:00,737 INFO L226 Difference]: Without dead ends: 33 [2018-09-15 17:20:00,739 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-09-15 17:20:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-15 17:20:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-09-15 17:20:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-15 17:20:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2018-09-15 17:20:00,749 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 17 [2018-09-15 17:20:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:00,750 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-09-15 17:20:00,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-15 17:20:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2018-09-15 17:20:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-15 17:20:00,752 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:00,752 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:00,752 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:00,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1101228063, now seen corresponding path program 1 times [2018-09-15 17:20:00,753 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:00,753 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-15 17:20:00,753 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [52], [56], [58], [64], [67], [69], [75], [76], [77], [83] [2018-09-15 17:20:00,755 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:00,755 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:00,759 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:00,766 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:00,766 INFO L272 AbstractInterpreter]: Visited 17 different actions 17 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-09-15 17:20:00,775 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:00,811 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:20:00,811 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:01,011 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:01,011 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:01,012 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-15 17:20:01,012 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:01,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-15 17:20:01,013 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-15 17:20:01,013 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-15 17:20:01,014 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 9 states. [2018-09-15 17:20:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:01,278 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2018-09-15 17:20:01,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-15 17:20:01,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-09-15 17:20:01,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:01,280 INFO L225 Difference]: With dead ends: 42 [2018-09-15 17:20:01,281 INFO L226 Difference]: Without dead ends: 27 [2018-09-15 17:20:01,282 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-09-15 17:20:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-09-15 17:20:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-09-15 17:20:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-09-15 17:20:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-09-15 17:20:01,289 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 19 [2018-09-15 17:20:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:01,290 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-09-15 17:20:01,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-15 17:20:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-09-15 17:20:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-15 17:20:01,291 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:01,291 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:01,292 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:01,292 INFO L82 PathProgramCache]: Analyzing trace with hash 421169693, now seen corresponding path program 1 times [2018-09-15 17:20:01,292 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:01,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-15 17:20:01,293 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [46], [52], [56], [58], [64], [67], [69], [75], [76], [77], [83] [2018-09-15 17:20:01,295 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:01,295 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:01,298 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:20:01,337 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:01,337 INFO L272 AbstractInterpreter]: Visited 17 different actions 59 times. Merged at 2 different actions 28 times. Widened at 1 different actions 10 times. Found 15 fixpoints after 2 different actions. Largest state had 9 variables. [2018-09-15 17:20:01,366 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:01,391 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:20:01,391 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:01,516 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:01,517 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:01,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 17:20:01,517 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:01,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 17:20:01,519 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 17:20:01,519 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-09-15 17:20:01,519 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 10 states. [2018-09-15 17:20:01,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:01,680 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2018-09-15 17:20:01,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-15 17:20:01,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2018-09-15 17:20:01,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:01,682 INFO L225 Difference]: With dead ends: 27 [2018-09-15 17:20:01,682 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 17:20:01,683 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-09-15 17:20:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 17:20:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 17:20:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 17:20:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 17:20:01,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-09-15 17:20:01,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:01,685 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 17:20:01,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 17:20:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 17:20:01,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 17:20:01,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 17:20:02,049 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 21 [2018-09-15 17:20:02,152 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-15 17:20:02,153 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 17:20:02,153 INFO L426 ceAbstractionStarter]: For program point fooEXIT(lines 11 18) no Hoare annotation was computed. [2018-09-15 17:20:02,153 INFO L429 ceAbstractionStarter]: At program point fooENTRY(lines 11 18) the Hoare annotation is: true [2018-09-15 17:20:02,153 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-15 17:20:02,153 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 11 18) no Hoare annotation was computed. [2018-09-15 17:20:02,153 INFO L426 ceAbstractionStarter]: For program point L15-2(lines 12 18) no Hoare annotation was computed. [2018-09-15 17:20:02,154 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 17:20:02,154 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 17:20:02,154 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 17:20:02,154 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 17:20:02,154 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-15 17:20:02,154 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 19 35) no Hoare annotation was computed. [2018-09-15 17:20:02,155 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-15 17:20:02,155 INFO L426 ceAbstractionStarter]: For program point L25-2(lines 20 35) no Hoare annotation was computed. [2018-09-15 17:20:02,155 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 19 35) no Hoare annotation was computed. [2018-09-15 17:20:02,155 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 33) no Hoare annotation was computed. [2018-09-15 17:20:02,155 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 19 35) the Hoare annotation is: true [2018-09-15 17:20:02,155 INFO L426 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-09-15 17:20:02,155 INFO L426 ceAbstractionStarter]: For program point L30-2(lines 20 35) no Hoare annotation was computed. [2018-09-15 17:20:02,156 INFO L422 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: (let ((.cse0 (* 2 main_~d~0)) (.cse1 (+ main_~x~0 main_~d~0))) (or (and (<= .cse0 2) (<= .cse1 1000001) (<= main_~d~0 (+ main_~x~0 1000001)) (<= 2 .cse0)) (and (<= 0 .cse0) (<= .cse0 0) (<= .cse1 1000000) (<= main_~d~0 (+ main_~x~0 1000000))))) [2018-09-15 17:20:02,156 INFO L422 ceAbstractionStarter]: At program point L30-3(lines 30 33) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 0) (<= 0 (+ .cse0 2000000)))) [2018-09-15 17:20:02,156 INFO L422 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (* 2 main_~d~0)) (.cse1 (+ main_~x~0 main_~d~0))) (or (and (<= .cse0 2) (<= .cse1 1000001) (<= main_~d~0 (+ main_~x~0 1000001)) (<= 2 .cse0)) (and (<= 0 .cse0) (<= .cse0 0) (<= .cse1 1000000) (<= main_~d~0 (+ main_~x~0 1000000))))) [2018-09-15 17:20:02,156 INFO L426 ceAbstractionStarter]: For program point L28-3(lines 20 35) no Hoare annotation was computed. [2018-09-15 17:20:02,157 INFO L426 ceAbstractionStarter]: For program point L26-2(line 26) no Hoare annotation was computed. [2018-09-15 17:20:02,157 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 17:20:02,157 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 17:20:02,157 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 17:20:02,157 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 17:20:02,157 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 17:20:02,158 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 17:20:02,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:02 BoogieIcfgContainer [2018-09-15 17:20:02,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:02,161 INFO L168 Benchmark]: Toolchain (without parser) took 4340.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -649.6 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:02,163 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-15 17:20:02,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.52 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. [2018-09-15 17:20:02,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.87 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. [2018-09-15 17:20:02,165 INFO L168 Benchmark]: Boogie Preprocessor took 38.95 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. [2018-09-15 17:20:02,165 INFO L168 Benchmark]: RCFGBuilder took 705.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:02,167 INFO L168 Benchmark]: TraceAbstraction took 3246.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:02,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.52 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 27.87 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 38.95 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 705.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3246.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 120.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 146 SDtfs, 90 SDslu, 452 SDs, 0 SdLazy, 163 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9461028192371476 AbsIntWeakeningRatio, 0.47761194029850745 AbsIntAvgWeakeningVarsNumRemoved, 1.8208955223880596 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 22 NumberOfFragments, 105 HoareAnnotationTreeSize, 16 FomulaSimplifications, 369 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 92 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex04_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-02-195.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex04_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-02-195.csv Received shutdown request...