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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 03:30:32,041 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 03:30:32,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 03:30:32,062 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 03:30:32,063 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 03:30:32,064 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 03:30:32,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 03:30:32,069 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 03:30:32,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 03:30:32,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 03:30:32,074 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 03:30:32,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 03:30:32,078 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 03:30:32,082 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 03:30:32,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 03:30:32,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 03:30:32,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 03:30:32,090 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 03:30:32,100 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 03:30:32,105 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 03:30:32,106 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 03:30:32,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 03:30:32,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 03:30:32,115 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 03:30:32,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 03:30:32,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 03:30:32,119 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 03:30:32,120 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 03:30:32,121 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 03:30:32,123 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 03:30:32,124 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 03:30:32,125 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 03:30:32,125 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 03:30:32,125 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 03:30:32,127 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 03:30:32,128 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 03:30:32,128 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-08-08 03:30:32,157 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 03:30:32,158 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 03:30:32,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 03:30:32,159 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 03:30:32,159 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 03:30:32,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 03:30:32,160 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 03:30:32,160 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 03:30:32,161 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 03:30:32,161 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 03:30:32,161 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 03:30:32,162 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 03:30:32,162 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 03:30:32,162 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 03:30:32,163 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 03:30:32,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 03:30:32,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 03:30:32,164 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 03:30:32,164 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 03:30:32,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 03:30:32,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 03:30:32,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 03:30:32,166 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 03:30:32,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 03:30:32,167 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 03:30:32,167 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 03:30:32,167 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 03:30:32,168 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 03:30:32,168 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 03:30:32,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 03:30:32,168 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 03:30:32,169 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 03:30:32,169 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 03:30:32,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 03:30:32,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 03:30:32,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 03:30:32,239 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 03:30:32,239 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 03:30:32,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-08-08 03:30:32,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/502d4e51f/e3fabc23363945b4a0809a0522050f8b/FLAG42281bbc6 [2018-08-08 03:30:32,776 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 03:30:32,776 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-08-08 03:30:32,784 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/502d4e51f/e3fabc23363945b4a0809a0522050f8b/FLAG42281bbc6 [2018-08-08 03:30:32,800 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/502d4e51f/e3fabc23363945b4a0809a0522050f8b [2018-08-08 03:30:32,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 03:30:32,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 03:30:32,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:32,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 03:30:32,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 03:30:32,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:32" (1/1) ... [2018-08-08 03:30:32,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b795c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:32, skipping insertion in model container [2018-08-08 03:30:32,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 03:30:32" (1/1) ... [2018-08-08 03:30:32,976 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 03:30:33,012 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:33,029 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 03:30:33,035 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 03:30:33,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33 WrapperNode [2018-08-08 03:30:33,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 03:30:33,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:33,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 03:30:33,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 03:30:33,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 03:30:33,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 03:30:33,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 03:30:33,076 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 03:30:33,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (1/1) ... [2018-08-08 03:30:33,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 03:30:33,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 03:30:33,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 03:30:33,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 03:30:33,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (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 [2018-08-08 03:30:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 03:30:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 03:30:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 03:30:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 03:30:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 03:30:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 03:30:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_NetBSD_loop_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 03:30:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_NetBSD_loop_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 03:30:33,576 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 03:30:33,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:33 BoogieIcfgContainer [2018-08-08 03:30:33,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 03:30:33,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 03:30:33,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 03:30:33,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 03:30:33,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 03:30:32" (1/3) ... [2018-08-08 03:30:33,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd62e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:33, skipping insertion in model container [2018-08-08 03:30:33,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 03:30:33" (2/3) ... [2018-08-08 03:30:33,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd62e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 03:30:33, skipping insertion in model container [2018-08-08 03:30:33,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 03:30:33" (3/3) ... [2018-08-08 03:30:33,592 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop_true-unreach-call_true-termination.i [2018-08-08 03:30:33,602 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 03:30:33,618 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 03:30:33,675 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 03:30:33,676 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 03:30:33,676 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 03:30:33,676 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 03:30:33,676 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 03:30:33,676 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 03:30:33,676 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 03:30:33,676 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 03:30:33,677 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 03:30:33,694 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-08-08 03:30:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-08-08 03:30:33,700 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:33,701 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:33,702 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_NetBSD_loop_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:33,708 INFO L82 PathProgramCache]: Analyzing trace with hash 328932071, now seen corresponding path program 1 times [2018-08-08 03:30:33,710 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:33,712 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-08-08 03:30:33,714 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [20], [30], [33], [35], [41], [42], [43], [45] [2018-08-08 03:30:33,764 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:33,764 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:33,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 03:30:33,894 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-08-08 03:30:33,912 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 03:30:34,013 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 66.67% of their original sizes. [2018-08-08 03:30:34,013 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 03:30:34,197 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 03:30:34,199 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 03:30:34,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-08-08 03:30:34,199 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 03:30:34,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-08-08 03:30:34,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-08-08 03:30:34,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-08-08 03:30:34,212 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 8 states. [2018-08-08 03:30:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 03:30:34,602 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2018-08-08 03:30:34,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-08 03:30:34,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-08-08 03:30:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 03:30:34,615 INFO L225 Difference]: With dead ends: 51 [2018-08-08 03:30:34,615 INFO L226 Difference]: Without dead ends: 27 [2018-08-08 03:30:34,620 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 03:30:34,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-08-08 03:30:34,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-08-08 03:30:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-08-08 03:30:34,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-08-08 03:30:34,682 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 13 [2018-08-08 03:30:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 03:30:34,683 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-08-08 03:30:34,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-08-08 03:30:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-08-08 03:30:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-08-08 03:30:34,687 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 03:30:34,687 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 03:30:34,688 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_NetBSD_loop_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 03:30:34,688 INFO L82 PathProgramCache]: Analyzing trace with hash 278994328, now seen corresponding path program 1 times [2018-08-08 03:30:34,689 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 03:30:34,689 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-08-08 03:30:34,689 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [20], [24], [30], [33], [35], [38], [40], [41], [42], [43], [45], [46], [47], [48] [2018-08-08 03:30:34,693 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 03:30:34,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 03:30:34,873 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 03:30:34,874 INFO L272 AbstractInterpreter]: Visited 19 different actions 133 times. Merged at 5 different actions 35 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-08-08 03:30:34,915 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 03:30:34,941 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 03:30:34,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 03:30:34 BoogieIcfgContainer [2018-08-08 03:30:34,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 03:30:34,943 INFO L168 Benchmark]: Toolchain (without parser) took 2131.34 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -691.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:34,946 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. [2018-08-08 03:30:34,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.95 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. [2018-08-08 03:30:34,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.69 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. [2018-08-08 03:30:34,948 INFO L168 Benchmark]: Boogie Preprocessor took 23.37 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. [2018-08-08 03:30:34,949 INFO L168 Benchmark]: RCFGBuilder took 477.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:34,950 INFO L168 Benchmark]: TraceAbstraction took 1359.23 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: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2018-08-08 03:30:34,955 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 235.95 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 24.69 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 23.37 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 477.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1359.23 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: 73.2 MB). Peak memory consumption was 73.2 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: [L12] int MAXPATHLEN; [L13] int pathbuf_off; [L14] int bound_off; [L15] int glob2_p_off; [L16] int glob2_pathbuf_off; [L17] int glob2_pathlim_off; [L18] MAXPATHLEN = __VERIFIER_nondet_int() [L19] COND TRUE MAXPATHLEN > 0 && MAXPATHLEN < 2147483647 [L20] pathbuf_off = 0 [L21] bound_off = pathbuf_off + (MAXPATHLEN + 1) - 1 [L22] glob2_pathbuf_off = pathbuf_off [L23] glob2_pathlim_off = bound_off [L24] glob2_p_off = glob2_pathbuf_off [L25] COND TRUE glob2_p_off <= glob2_pathlim_off [L27] CALL __VERIFIER_assert (0 <= glob2_p_off ) [L4] COND FALSE, RET !(!(cond)) [L27] __VERIFIER_assert (0 <= glob2_p_off ) [L28] CALL __VERIFIER_assert (glob2_p_off < MAXPATHLEN + 1) [L4] COND FALSE, RET !(!(cond)) [L28] __VERIFIER_assert (glob2_p_off < MAXPATHLEN + 1) [L26] glob2_p_off++ [L26] glob2_p_off++ [L25] COND TRUE glob2_p_off <= glob2_pathlim_off [L27] CALL __VERIFIER_assert (0 <= glob2_p_off ) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNKNOWN Result, 1.2s OverallTime, 2 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 27 SDslu, 92 SDs, 0 SdLazy, 49 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.8869047619047619 AbsIntWeakeningRatio, 1.0833333333333333 AbsIntAvgWeakeningVarsNumRemoved, 18.083333333333332 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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/NetBSD_loop_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_03-30-34-968.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/NetBSD_loop_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_03-30-34-968.csv Received shutdown request...