java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 13:14:22,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 13:14:22,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 13:14:22,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 13:14:22,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 13:14:22,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 13:14:22,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 13:14:22,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 13:14:22,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 13:14:22,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 13:14:22,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 13:14:22,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 13:14:22,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 13:14:22,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 13:14:22,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 13:14:22,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 13:14:22,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 13:14:22,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 13:14:22,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 13:14:22,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 13:14:22,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 13:14:22,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 13:14:22,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 13:14:22,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 13:14:22,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 13:14:22,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 13:14:22,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 13:14:22,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 13:14:22,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 13:14:22,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 13:14:22,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 13:14:22,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 13:14:22,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 13:14:22,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 13:14:22,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 13:14:22,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 13:14:22,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-05 13:14:22,663 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 13:14:22,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 13:14:22,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-05 13:14:22,664 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-05 13:14:22,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-05 13:14:22,665 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-05 13:14:22,665 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-05 13:14:22,665 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-05 13:14:22,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-05 13:14:22,666 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-05 13:14:22,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 13:14:22,671 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 13:14:22,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 13:14:22,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 13:14:22,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 13:14:22,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 13:14:22,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 13:14:22,672 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 13:14:22,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 13:14:22,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 13:14:22,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 13:14:22,673 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-05 13:14:22,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 13:14:22,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 13:14:22,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 13:14:22,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 13:14:22,674 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-05 13:14:22,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 13:14:22,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 13:14:22,674 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-05 13:14:22,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 13:14:22,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 13:14:22,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 13:14:22,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 13:14:22,718 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 13:14:22,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2019-09-05 13:14:22,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e235c7ee5/ef7c136a84844712a3b53f75cf306f86/FLAG1b89ba719 [2019-09-05 13:14:23,155 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 13:14:23,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2019-09-05 13:14:23,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e235c7ee5/ef7c136a84844712a3b53f75cf306f86/FLAG1b89ba719 [2019-09-05 13:14:23,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e235c7ee5/ef7c136a84844712a3b53f75cf306f86 [2019-09-05 13:14:23,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 13:14:23,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 13:14:23,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 13:14:23,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 13:14:23,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 13:14:23,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6595b9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23, skipping insertion in model container [2019-09-05 13:14:23,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,625 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 13:14:23,640 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 13:14:23,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:14:23,810 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 13:14:23,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:14:23,835 INFO L192 MainTranslator]: Completed translation [2019-09-05 13:14:23,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23 WrapperNode [2019-09-05 13:14:23,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 13:14:23,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 13:14:23,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 13:14:23,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 13:14:23,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (1/1) ... [2019-09-05 13:14:23,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 13:14:23,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 13:14:23,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 13:14:23,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 13:14:23,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (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 [2019-09-05 13:14:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 13:14:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 13:14:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 13:14:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 13:14:24,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 13:14:24,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 13:14:24,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 13:14:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 13:14:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 13:14:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 13:14:24,180 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 13:14:24,180 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 13:14:24,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:14:24 BoogieIcfgContainer [2019-09-05 13:14:24,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 13:14:24,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-05 13:14:24,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-05 13:14:24,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-05 13:14:24,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.09 01:14:23" (1/3) ... [2019-09-05 13:14:24,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b3a3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 01:14:24, skipping insertion in model container [2019-09-05 13:14:24,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:14:23" (2/3) ... [2019-09-05 13:14:24,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b3a3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 01:14:24, skipping insertion in model container [2019-09-05 13:14:24,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:14:24" (3/3) ... [2019-09-05 13:14:24,188 INFO L109 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2019-09-05 13:14:24,196 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-05 13:14:24,202 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-05 13:14:24,219 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-05 13:14:24,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-05 13:14:24,242 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-05 13:14:24,242 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-05 13:14:24,242 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-05 13:14:24,242 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-05 13:14:24,242 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-05 13:14:24,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-05 13:14:24,243 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-05 13:14:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-05 13:14:24,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-05 13:14:24,263 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 13:14:24,263 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 13:14:24,265 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 13:14:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 13:14:24,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2019-09-05 13:14:24,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-05 13:14:24,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:14:24,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 13:14:24,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:14:24,310 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-05 13:14:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 13:14:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 13:14:24,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 13:14:24,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-05 13:14:24,361 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-05 13:14:24,365 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-05 13:14:24,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-05 13:14:24,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-05 13:14:24,379 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-09-05 13:14:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 13:14:24,392 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-09-05 13:14:24,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-05 13:14:24,393 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-05 13:14:24,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 13:14:24,401 INFO L225 Difference]: With dead ends: 19 [2019-09-05 13:14:24,401 INFO L226 Difference]: Without dead ends: 12 [2019-09-05 13:14:24,403 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-05 13:14:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-05 13:14:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-05 13:14:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-05 13:14:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-05 13:14:24,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-09-05 13:14:24,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 13:14:24,437 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-05 13:14:24,437 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-05 13:14:24,437 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-05 13:14:24,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-05 13:14:24,438 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 13:14:24,438 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 13:14:24,439 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 13:14:24,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 13:14:24,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2019-09-05 13:14:24,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-05 13:14:24,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:14:24,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 13:14:24,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:14:24,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-05 13:14:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-05 13:14:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-05 13:14:24,492 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-05 13:14:24,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.09 01:14:24 BoogieIcfgContainer [2019-09-05 13:14:24,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-05 13:14:24,517 INFO L168 Benchmark]: Toolchain (without parser) took 907.88 ms. Allocated memory was 129.0 MB in the beginning and 197.7 MB in the end (delta: 68.7 MB). Free memory was 84.7 MB in the beginning and 142.3 MB in the end (delta: -57.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-05 13:14:24,518 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 129.0 MB. Free memory was 103.1 MB in the beginning and 102.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 13:14:24,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.00 ms. Allocated memory is still 129.0 MB. Free memory was 84.5 MB in the beginning and 75.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-05 13:14:24,521 INFO L168 Benchmark]: Boogie Preprocessor took 114.86 ms. Allocated memory was 129.0 MB in the beginning and 197.7 MB in the end (delta: 68.7 MB). Free memory was 75.4 MB in the beginning and 174.3 MB in the end (delta: -98.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-05 13:14:24,522 INFO L168 Benchmark]: RCFGBuilder took 230.28 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 162.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-05 13:14:24,523 INFO L168 Benchmark]: TraceAbstraction took 331.94 ms. Allocated memory is still 197.7 MB. Free memory was 162.9 MB in the beginning and 142.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-09-05 13:14:24,527 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 129.0 MB. Free memory was 103.1 MB in the beginning and 102.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.00 ms. Allocated memory is still 129.0 MB. Free memory was 84.5 MB in the beginning and 75.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.86 ms. Allocated memory was 129.0 MB in the beginning and 197.7 MB in the end (delta: 68.7 MB). Free memory was 75.4 MB in the beginning and 174.3 MB in the end (delta: -98.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.28 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 162.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 331.94 ms. Allocated memory is still 197.7 MB. Free memory was 162.9 MB in the beginning and 142.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 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: overapproximation of bitwiseAnd at line 14. Possible FailurePath: [L10] unsigned int x = 5; VAL [x=5] [L11] COND FALSE !(__VERIFIER_nondet_int()) [L14] CALL __VERIFIER_assert((x & 5) == 5) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 Received shutdown request...