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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:58:17,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:58:17,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:58:17,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:58:17,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:58:17,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:58:17,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:58:17,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:58:17,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:58:17,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:58:17,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:58:17,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:58:17,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:58:17,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:58:17,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:58:17,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:58:17,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:58:17,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:58:17,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:58:17,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:58:17,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:58:17,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:58:17,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:58:17,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:58:17,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:58:17,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:58:17,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:58:17,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:58:17,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 12:58:17,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:58:17,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:58:17,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:58:17,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:58:17,218 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:58:17,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:58:17,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:58:17,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:58:17,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:58:17,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:58:17,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:58:17,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:58:17,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:58:17,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:58:17,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:58:17,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:58:17,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:58:17,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:58:17,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:58:17,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:58:17,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:58:17,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:58:17,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:58:17,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:58:17,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:58:17,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:58:17,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:58:17,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:58:17,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:58:17,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:58:17,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:58:17,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:58:17,276 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:58:17,276 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:58:17,277 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2019-09-20 12:58:17,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3786008cc/908683830a7a441a88d985c373d4aeab/FLAG1ca212c4e [2019-09-20 12:58:17,782 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:58:17,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans.i [2019-09-20 12:58:17,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3786008cc/908683830a7a441a88d985c373d4aeab/FLAG1ca212c4e [2019-09-20 12:58:18,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3786008cc/908683830a7a441a88d985c373d4aeab [2019-09-20 12:58:18,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:58:18,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:58:18,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:18,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:58:18,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:58:18,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55482da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18, skipping insertion in model container [2019-09-20 12:58:18,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,185 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:58:18,206 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:58:18,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:18,428 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:58:18,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:18,456 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:58:18,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18 WrapperNode [2019-09-20 12:58:18,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:18,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:58:18,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:58:18,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:58:18,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (1/1) ... [2019-09-20 12:58:18,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:58:18,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:58:18,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:58:18,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:58:18,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (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 [2019-09-20 12:58:18,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:58:18,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:58:18,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:58:18,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:58:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:58:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 12:58:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:58:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:58:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:58:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:58:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:58:18,869 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:58:18,869 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 12:58:18,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:18 BoogieIcfgContainer [2019-09-20 12:58:18,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:58:18,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:58:18,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:58:18,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:58:18,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:58:18" (1/3) ... [2019-09-20 12:58:18,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f86ed91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:18, skipping insertion in model container [2019-09-20 12:58:18,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:18" (2/3) ... [2019-09-20 12:58:18,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f86ed91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:18, skipping insertion in model container [2019-09-20 12:58:18,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:18" (3/3) ... [2019-09-20 12:58:18,879 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2019-09-20 12:58:18,889 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:58:18,900 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:58:18,918 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:58:18,948 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:58:18,949 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:58:18,949 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:58:18,949 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:58:18,949 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:58:18,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:58:18,950 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:58:18,950 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:58:18,950 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:58:18,965 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-09-20 12:58:18,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 12:58:18,970 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:18,971 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:18,973 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:18,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1719634852, now seen corresponding path program 1 times [2019-09-20 12:58:18,980 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:18,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:19,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:19,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:19,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:19,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:19,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:58:19,185 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:58:19,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:58:19,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:58:19,207 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-09-20 12:58:19,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:19,357 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2019-09-20 12:58:19,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 12:58:19,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-20 12:58:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:19,377 INFO L225 Difference]: With dead ends: 46 [2019-09-20 12:58:19,378 INFO L226 Difference]: Without dead ends: 22 [2019-09-20 12:58:19,382 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-20 12:58:19,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-20 12:58:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-20 12:58:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-09-20 12:58:19,425 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2019-09-20 12:58:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:19,425 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-09-20 12:58:19,426 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:58:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-09-20 12:58:19,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-20 12:58:19,428 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:19,428 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:19,428 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:19,429 INFO L82 PathProgramCache]: Analyzing trace with hash 769813017, now seen corresponding path program 1 times [2019-09-20 12:58:19,429 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:19,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:19,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:19,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:19,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:19,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:19,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:58:19,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:58:19,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:58:19,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:58:19,540 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2019-09-20 12:58:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:19,623 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-09-20 12:58:19,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 12:58:19,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-09-20 12:58:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:19,625 INFO L225 Difference]: With dead ends: 28 [2019-09-20 12:58:19,626 INFO L226 Difference]: Without dead ends: 26 [2019-09-20 12:58:19,628 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-20 12:58:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-20 12:58:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 12:58:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-09-20 12:58:19,642 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2019-09-20 12:58:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:19,643 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-09-20 12:58:19,643 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:58:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-09-20 12:58:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-20 12:58:19,645 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:19,646 INFO L407 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:19,646 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:19,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:19,646 INFO L82 PathProgramCache]: Analyzing trace with hash 889343161, now seen corresponding path program 1 times [2019-09-20 12:58:19,647 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:19,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:19,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:19,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:19,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 12:58:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 12:58:19,756 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-20 12:58:19,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:58:19 BoogieIcfgContainer [2019-09-20 12:58:19,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:58:19,783 INFO L168 Benchmark]: Toolchain (without parser) took 1617.45 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 83.2 MB in the beginning and 120.3 MB in the end (delta: -37.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:19,783 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 137.4 MB. Free memory was 102.0 MB in the beginning and 101.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:58:19,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.67 ms. Allocated memory is still 137.4 MB. Free memory was 82.8 MB in the beginning and 73.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:19,786 INFO L168 Benchmark]: Boogie Preprocessor took 130.24 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 73.5 MB in the beginning and 175.6 MB in the end (delta: -102.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:19,787 INFO L168 Benchmark]: RCFGBuilder took 282.58 ms. Allocated memory is still 198.2 MB. Free memory was 175.6 MB in the beginning and 163.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:19,788 INFO L168 Benchmark]: TraceAbstraction took 907.92 ms. Allocated memory is still 198.2 MB. Free memory was 163.2 MB in the beginning and 120.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:19,792 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 137.4 MB. Free memory was 102.0 MB in the beginning and 101.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.67 ms. Allocated memory is still 137.4 MB. Free memory was 82.8 MB in the beginning and 73.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.24 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 73.5 MB in the beginning and 175.6 MB in the end (delta: -102.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.58 ms. Allocated memory is still 198.2 MB. Free memory was 175.6 MB in the beginning and 163.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 907.92 ms. Allocated memory is still 198.2 MB. Free memory was 163.2 MB in the beginning and 120.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L18] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] RET __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L19] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] RET __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L20] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L20] RET __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L21] CALL __VERIFIER_assert( j/4 < nlen) 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, 23 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 13 SDslu, 98 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...