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_1_variant_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:44,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:44,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:44,737 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:44,737 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:44,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:44,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:44,742 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:44,745 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:44,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:44,749 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:44,749 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:44,751 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:44,752 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:44,753 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:44,756 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:44,757 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:44,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:44,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:44,774 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:44,779 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:44,780 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:44,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:01:44,801 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 08:01:44,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:44,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:44,834 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:44,834 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:44,834 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:44,835 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:44,835 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:44,835 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:44,835 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:44,838 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:44,839 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:44,839 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:44,839 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:44,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:44,840 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:44,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:44,842 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:44,842 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:44,842 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:44,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:44,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:44,843 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:44,843 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:44,843 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:44,843 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:44,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:44,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:44,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:44,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:44,845 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:44,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:44,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:44,846 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:44,846 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:44,846 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:44,909 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:44,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:44,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:44,936 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:44,937 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:44,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-09-19 08:01:45,304 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a348f55b6/490eaa64814e4325a5bdd6d50c8da383/FLAG52b8f6871 [2018-09-19 08:01:45,425 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:45,426 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-09-19 08:01:45,431 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a348f55b6/490eaa64814e4325a5bdd6d50c8da383/FLAG52b8f6871 [2018-09-19 08:01:45,446 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a348f55b6/490eaa64814e4325a5bdd6d50c8da383 [2018-09-19 08:01:45,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:45,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:45,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:45,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:45,472 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:45,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737774f 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 08:01:45,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,488 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:45,677 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:45,695 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:45,699 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:45,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45 WrapperNode [2018-09-19 08:01:45,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:45,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:45,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:45,716 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:45,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:45,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:45,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:45,742 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:45,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (1/1) ... [2018-09-19 08:01:45,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:45,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:45,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:45,767 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:45,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (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 08:01:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:46,076 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:46,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:46 BoogieIcfgContainer [2018-09-19 08:01:46,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:46,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:46,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:46,081 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:46,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:45" (1/3) ... [2018-09-19 08:01:46,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85813cd 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 08:01:46,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:45" (2/3) ... [2018-09-19 08:01:46,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85813cd 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 08:01:46,083 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 08:01:46,085 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant_true-unreach-call_true-termination.i [2018-09-19 08:01:46,096 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:46,104 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:46,156 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:46,157 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:46,157 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:46,157 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:46,158 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:46,158 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:46,158 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:46,158 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:46,158 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-19 08:01:46,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 08:01:46,185 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:46,186 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:46,187 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:46,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1350619, now seen corresponding path program 1 times [2018-09-19 08:01:46,196 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:46,197 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 08:01:46,199 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [22], [25], [27], [33], [34], [35], [37] [2018-09-19 08:01:46,258 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:46,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:46,307 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:46,308 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 08:01:46,330 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:46,402 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 08:01:46,403 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:46,524 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:46,525 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:46,525 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 08:01:46,526 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:46,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 08:01:46,535 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 08:01:46,535 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-19 08:01:46,538 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-09-19 08:01:46,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:46,714 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-09-19 08:01:46,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 08:01:46,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-09-19 08:01:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:46,725 INFO L225 Difference]: With dead ends: 43 [2018-09-19 08:01:46,725 INFO L226 Difference]: Without dead ends: 23 [2018-09-19 08:01:46,729 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-19 08:01:46,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-19 08:01:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-09-19 08:01:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-19 08:01:46,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-09-19 08:01:46,770 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2018-09-19 08:01:46,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:46,770 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-09-19 08:01:46,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 08:01:46,771 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-09-19 08:01:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 08:01:46,772 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:46,772 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:46,775 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1691970717, now seen corresponding path program 1 times [2018-09-19 08:01:46,776 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:46,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 08:01:46,776 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [16], [22], [25], [27], [30], [32], [33], [34], [35], [37], [38] [2018-09-19 08:01:46,782 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:46,782 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:46,828 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:46,828 INFO L272 AbstractInterpreter]: Visited 14 different actions 68 times. Merged at 4 different actions 24 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-09-19 08:01:46,839 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:46,862 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 75% of their original sizes. [2018-09-19 08:01:46,863 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:46,927 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:46,927 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:46,928 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 08:01:46,928 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:46,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 08:01:46,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 08:01:46,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-19 08:01:46,931 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 6 states. [2018-09-19 08:01:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:47,018 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-09-19 08:01:47,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 08:01:47,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-09-19 08:01:47,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:47,020 INFO L225 Difference]: With dead ends: 22 [2018-09-19 08:01:47,020 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 08:01:47,022 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:01:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 08:01:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 08:01:47,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 08:01:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 08:01:47,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-09-19 08:01:47,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:47,023 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 08:01:47,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 08:01:47,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 08:01:47,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 08:01:47,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 08:01:47,449 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 8 [2018-09-19 08:01:47,452 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 08:01:47,452 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 08:01:47,452 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 08:01:47,452 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 08:01:47,453 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 08:01:47,453 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 08:01:47,453 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 16) the Hoare annotation is: true [2018-09-19 08:01:47,453 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 16) no Hoare annotation was computed. [2018-09-19 08:01:47,453 INFO L422 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 1999998) (<= 0 .cse0))) [2018-09-19 08:01:47,454 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 16) no Hoare annotation was computed. [2018-09-19 08:01:47,454 INFO L426 ceAbstractionStarter]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2018-09-19 08:01:47,454 INFO L426 ceAbstractionStarter]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2018-09-19 08:01:47,454 INFO L422 ceAbstractionStarter]: At program point L12-3(lines 12 14) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2000000))) [2018-09-19 08:01:47,454 INFO L426 ceAbstractionStarter]: For program point L12-4(lines 12 14) no Hoare annotation was computed. [2018-09-19 08:01:47,454 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-19 08:01:47,455 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-19 08:01:47,455 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-19 08:01:47,455 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-19 08:01:47,455 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-19 08:01:47,455 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-19 08:01:47,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:47 BoogieIcfgContainer [2018-09-19 08:01:47,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:47,465 INFO L168 Benchmark]: Toolchain (without parser) took 2004.98 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -714.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:47,467 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. [2018-09-19 08:01:47,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.56 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 08:01:47,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.75 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 08:01:47,469 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 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 08:01:47,470 INFO L168 Benchmark]: RCFGBuilder took 310.64 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:47,471 INFO L168 Benchmark]: TraceAbstraction took 1385.92 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:47,477 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 252.56 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 25.75 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 24.48 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 310.64 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -771.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1385.92 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 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 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 <= 2 * i && 2 * i <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 13 SDslu, 71 SDs, 0 SdLazy, 37 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.8571428571428571 AbsIntWeakeningRatio, 0.32142857142857145 AbsIntAvgWeakeningVarsNumRemoved, 1.1428571428571428 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 17 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.3s 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/count_by_1_variant_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-47-491.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_1_variant_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-47-491.csv Received shutdown request...