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/loop-new/count_by_nondet_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:45,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:45,060 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:45,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:45,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:45,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:45,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:45,080 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:45,081 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:45,082 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:45,083 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:45,083 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:45,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:45,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:45,087 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:45,088 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:45,088 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:45,092 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:45,094 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:45,097 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:45,099 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:45,103 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:45,107 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:45,107 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:45,107 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:45,109 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:45,110 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:45,111 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:45,113 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:45,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:45,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:45,117 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:01:45,121 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 08:01:45,151 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:45,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:45,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:45,152 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:45,156 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:45,157 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:45,157 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:45,157 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:45,157 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:45,157 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:45,158 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:45,158 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:45,158 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:45,159 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:45,159 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:45,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:45,160 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:45,160 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:45,160 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:45,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:45,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:45,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:45,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:45,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:45,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:45,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:45,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:45,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:45,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:45,162 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:45,162 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:45,164 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:45,165 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:45,165 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:45,165 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:45,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:45,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:45,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:45,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:45,252 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:45,253 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_nondet_true-unreach-call_true-termination.i [2018-09-19 08:01:45,615 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47be631b1/cba6554f18664859a75e08cdb220dec7/FLAGc03309d8d [2018-09-19 08:01:45,761 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:45,762 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_nondet_true-unreach-call_true-termination.i [2018-09-19 08:01:45,768 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47be631b1/cba6554f18664859a75e08cdb220dec7/FLAGc03309d8d [2018-09-19 08:01:45,784 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47be631b1/cba6554f18664859a75e08cdb220dec7 [2018-09-19 08:01:45,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:45,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:45,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:45,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:45,806 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:45,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d602434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45, skipping insertion in model container [2018-09-19 08:01:45,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,823 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:46,029 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:46,051 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:46,058 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:46,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46 WrapperNode [2018-09-19 08:01:46,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:46,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:46,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:46,078 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:46,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:46,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:46,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:46,101 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:46,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (1/1) ... [2018-09-19 08:01:46,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:46,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:46,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:46,123 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:46,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (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 08:01:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:46,500 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:46,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:46 BoogieIcfgContainer [2018-09-19 08:01:46,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:46,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:46,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:46,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:46,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:45" (1/3) ... [2018-09-19 08:01:46,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1a7d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:46, skipping insertion in model container [2018-09-19 08:01:46,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:46" (2/3) ... [2018-09-19 08:01:46,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1a7d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:46, skipping insertion in model container [2018-09-19 08:01:46,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:46" (3/3) ... [2018-09-19 08:01:46,520 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_nondet_true-unreach-call_true-termination.i [2018-09-19 08:01:46,537 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:46,557 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:46,623 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:46,624 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:46,624 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:46,624 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:46,624 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:46,624 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:46,625 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:46,625 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:46,625 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-19 08:01:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 08:01:46,652 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:46,653 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:46,654 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash -722424895, now seen corresponding path program 1 times [2018-09-19 08:01:46,669 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:46,674 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 08:01:46,676 INFO L202 CegarAbsIntRunner]: [0], [4], [20], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 08:01:46,741 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:46,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:46,786 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:46,787 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 08:01:46,812 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:46,854 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 08:01:46,854 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:46,887 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:46,888 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:46,889 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 08:01:46,889 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:46,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 08:01:46,899 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 08:01:46,900 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:01:46,902 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-09-19 08:01:46,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:46,935 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-09-19 08:01:46,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 08:01:46,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 08:01:46,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:46,947 INFO L225 Difference]: With dead ends: 39 [2018-09-19 08:01:46,947 INFO L226 Difference]: Without dead ends: 17 [2018-09-19 08:01:46,950 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:01:46,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-19 08:01:46,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-09-19 08:01:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-19 08:01:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-19 08:01:46,985 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-09-19 08:01:46,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:46,985 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-19 08:01:46,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 08:01:46,986 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-19 08:01:46,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 08:01:46,986 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:46,987 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:46,987 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:46,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1289299715, now seen corresponding path program 1 times [2018-09-19 08:01:46,988 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:46,988 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 08:01:46,988 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 08:01:46,990 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:46,990 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:46,995 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:46,996 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 08:01:47,025 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:47,037 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 08:01:47,037 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:47,050 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:47,051 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:47,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 08:01:47,051 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:47,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 08:01:47,052 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 08:01:47,052 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:01:47,053 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-09-19 08:01:47,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:47,108 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-09-19 08:01:47,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 08:01:47,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-19 08:01:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:47,110 INFO L225 Difference]: With dead ends: 21 [2018-09-19 08:01:47,110 INFO L226 Difference]: Without dead ends: 16 [2018-09-19 08:01:47,112 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:01:47,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-19 08:01:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-09-19 08:01:47,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 08:01:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-19 08:01:47,117 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-09-19 08:01:47,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:47,117 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-19 08:01:47,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 08:01:47,118 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-19 08:01:47,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 08:01:47,118 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:47,118 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:47,119 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:47,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1003978365, now seen corresponding path program 1 times [2018-09-19 08:01:47,119 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:47,119 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 08:01:47,120 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [25], [28], [30], [36], [37], [38], [40] [2018-09-19 08:01:47,121 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:47,121 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:47,215 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:47,215 INFO L272 AbstractInterpreter]: Visited 13 different actions 128 times. Merged at 4 different actions 62 times. Widened at 1 different actions 12 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-19 08:01:47,238 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:47,255 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:47,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:47 BoogieIcfgContainer [2018-09-19 08:01:47,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:47,256 INFO L168 Benchmark]: Toolchain (without parser) took 1461.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -743.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:47,259 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:47,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:47,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.40 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 08:01:47,261 INFO L168 Benchmark]: Boogie Preprocessor took 21.58 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 08:01:47,262 INFO L168 Benchmark]: RCFGBuilder took 378.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:47,263 INFO L168 Benchmark]: TraceAbstraction took 745.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:47,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.40 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 21.58 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 378.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 745.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int i = 0; [L12] int k = 0; [L13] COND TRUE i < 1000000 [L14] int j = __VERIFIER_nondet_int(); [L15] COND FALSE !(!(1 <= j && j < 1000000)) [L16] i = i + j [L17] k ++ [L17] k ++ [L13] COND FALSE !(i < 1000000) [L19] CALL __VERIFIER_assert(k <= 1000000) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 7 SDslu, 28 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.42105263157894735 AbsIntAvgWeakeningVarsNumRemoved, 0.3157894736842105 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_nondet_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-47-291.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_nondet_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-47-291.csv Received shutdown request...