/usr/bin/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/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:22:07,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:22:07,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:22:07,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:22:07,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:22:07,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:22:07,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:22:07,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:22:07,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:22:07,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:22:07,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:22:07,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:22:07,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:22:07,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:22:07,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:22:07,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:22:07,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:22:07,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:22:07,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:22:07,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:22:07,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:22:07,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:22:07,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:22:07,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:22:07,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 21:22:07,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:22:07,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:22:07,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:22:07,814 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 [2019-11-06 21:22:07,846 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:22:07,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:22:07,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:22:07,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:22:07,854 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:22:07,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:22:07,854 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:22:07,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:22:07,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:22:07,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:22:07,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:22:07,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:22:07,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:22:07,855 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:22:07,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:22:07,859 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:22:07,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:22:07,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:22:07,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:22:07,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:22:07,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:22:07,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:22:07,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:22:07,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:22:07,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:22:07,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:22:07,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:22:07,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:22:07,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:22:08,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:22:08,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:22:08,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:22:08,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:22:08,235 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:22:08,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2019-11-06 21:22:08,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f598b9b/9f26619365514daa800508cddf9f9e60/FLAGae78ea707 [2019-11-06 21:22:08,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:22:08,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2019-11-06 21:22:08,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f598b9b/9f26619365514daa800508cddf9f9e60/FLAGae78ea707 [2019-11-06 21:22:09,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f598b9b/9f26619365514daa800508cddf9f9e60 [2019-11-06 21:22:09,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:22:09,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:22:09,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:22:09,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:22:09,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:22:09,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529b5f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09, skipping insertion in model container [2019-11-06 21:22:09,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,182 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:22:09,200 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:22:09,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:22:09,402 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:22:09,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:22:09,434 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:22:09,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09 WrapperNode [2019-11-06 21:22:09,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:22:09,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:22:09,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:22:09,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:22:09,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (1/1) ... [2019-11-06 21:22:09,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:22:09,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:22:09,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:22:09,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:22:09,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (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 [2019-11-06 21:22:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:22:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:22:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 21:22:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:22:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:22:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 21:22:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 21:22:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:22:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:22:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:22:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:22:09,827 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:22:09,828 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 21:22:09,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:22:09 BoogieIcfgContainer [2019-11-06 21:22:09,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:22:09,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:22:09,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:22:09,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:22:09,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:22:09" (1/3) ... [2019-11-06 21:22:09,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7838f73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:22:09, skipping insertion in model container [2019-11-06 21:22:09,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:22:09" (2/3) ... [2019-11-06 21:22:09,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7838f73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:22:09, skipping insertion in model container [2019-11-06 21:22:09,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:22:09" (3/3) ... [2019-11-06 21:22:09,850 INFO L109 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2019-11-06 21:22:09,867 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:22:09,876 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:22:09,913 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:22:09,950 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:22:09,950 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:22:09,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:22:09,951 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:22:09,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:22:09,951 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:22:09,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:22:09,951 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:22:09,969 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-06 21:22:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-06 21:22:09,975 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:22:09,975 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:22:09,977 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:22:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:22:09,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1158151592, now seen corresponding path program 1 times [2019-11-06 21:22:09,988 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:22:09,989 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069403375] [2019-11-06 21:22:09,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:22:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:22:10,192 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069403375] [2019-11-06 21:22:10,193 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:22:10,193 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:22:10,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535195392] [2019-11-06 21:22:10,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:22:10,201 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:22:10,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:22:10,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:22:10,220 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-11-06 21:22:10,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:22:10,334 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2019-11-06 21:22:10,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 21:22:10,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-06 21:22:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:22:10,347 INFO L225 Difference]: With dead ends: 44 [2019-11-06 21:22:10,347 INFO L226 Difference]: Without dead ends: 21 [2019-11-06 21:22:10,352 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 21:22:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-06 21:22:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-06 21:22:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-06 21:22:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-11-06 21:22:10,413 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2019-11-06 21:22:10,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:22:10,414 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-11-06 21:22:10,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:22:10,414 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-11-06 21:22:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 21:22:10,416 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:22:10,416 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:22:10,417 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:22:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:22:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1937413030, now seen corresponding path program 1 times [2019-11-06 21:22:10,419 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:22:10,419 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627080090] [2019-11-06 21:22:10,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:22:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:22:10,565 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627080090] [2019-11-06 21:22:10,565 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:22:10,565 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 21:22:10,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809259682] [2019-11-06 21:22:10,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 21:22:10,568 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:22:10,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 21:22:10,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-06 21:22:10,569 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2019-11-06 21:22:10,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:22:10,659 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-11-06 21:22:10,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:22:10,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-06 21:22:10,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:22:10,663 INFO L225 Difference]: With dead ends: 31 [2019-11-06 21:22:10,663 INFO L226 Difference]: Without dead ends: 29 [2019-11-06 21:22:10,664 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:22:10,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-06 21:22:10,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-11-06 21:22:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-06 21:22:10,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-06 21:22:10,678 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 17 [2019-11-06 21:22:10,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:22:10,678 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-06 21:22:10,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 21:22:10,679 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-06 21:22:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-06 21:22:10,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:22:10,681 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:22:10,681 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:22:10,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:22:10,682 INFO L82 PathProgramCache]: Analyzing trace with hash 441803270, now seen corresponding path program 1 times [2019-11-06 21:22:10,682 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:22:10,683 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651022061] [2019-11-06 21:22:10,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:22:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-06 21:22:10,803 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651022061] [2019-11-06 21:22:10,804 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637330565] [2019-11-06 21:22:10,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:22:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:10,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-06 21:22:10,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:22:10,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:22:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 21:22:11,043 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 21:22:11,043 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 13 [2019-11-06 21:22:11,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68499924] [2019-11-06 21:22:11,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-06 21:22:11,045 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:22:11,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 21:22:11,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:22:11,047 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 13 states. [2019-11-06 21:22:11,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:22:11,256 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2019-11-06 21:22:11,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 21:22:11,256 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2019-11-06 21:22:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:22:11,258 INFO L225 Difference]: With dead ends: 43 [2019-11-06 21:22:11,258 INFO L226 Difference]: Without dead ends: 41 [2019-11-06 21:22:11,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-11-06 21:22:11,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-06 21:22:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-11-06 21:22:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-06 21:22:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-11-06 21:22:11,278 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2019-11-06 21:22:11,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:22:11,279 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-11-06 21:22:11,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-06 21:22:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-11-06 21:22:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-06 21:22:11,282 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:22:11,282 INFO L410 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:22:11,487 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:22:11,488 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:22:11,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:22:11,489 INFO L82 PathProgramCache]: Analyzing trace with hash 713924710, now seen corresponding path program 2 times [2019-11-06 21:22:11,490 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:22:11,490 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418456177] [2019-11-06 21:22:11,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:22:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:22:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:22:11,611 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418456177] [2019-11-06 21:22:11,612 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349585669] [2019-11-06 21:22:11,612 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:22:11,655 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-06 21:22:11,655 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-06 21:22:11,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-06 21:22:11,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:22:11,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:22:11,700 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:22:11,700 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 21:22:11,701 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-11-06 21:22:11,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463950996] [2019-11-06 21:22:11,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:22:11,702 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:22:11,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:22:11,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:22:11,703 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 8 states. [2019-11-06 21:22:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:22:11,753 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-06 21:22:11,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:22:11,755 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-11-06 21:22:11,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:22:11,756 INFO L225 Difference]: With dead ends: 40 [2019-11-06 21:22:11,756 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 21:22:11,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:22:11,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 21:22:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 21:22:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 21:22:11,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 21:22:11,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-11-06 21:22:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:22:11,758 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 21:22:11,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:22:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 21:22:11,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 21:22:11,962 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:22:11,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 21:22:12,042 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-06 21:22:12,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:22:12,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:22:12,043 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 21:22:12,043 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 21:22:12,043 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 21:22:12,043 INFO L446 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2019-11-06 21:22:12,044 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 31) the Hoare annotation is: true [2019-11-06 21:22:12,044 INFO L443 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2019-11-06 21:22:12,044 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2019-11-06 21:22:12,044 INFO L439 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2019-11-06 21:22:12,044 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 31) no Hoare annotation was computed. [2019-11-06 21:22:12,045 INFO L439 ceAbstractionStarter]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0)) [2019-11-06 21:22:12,045 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-06 21:22:12,045 INFO L443 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-11-06 21:22:12,045 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 31) no Hoare annotation was computed. [2019-11-06 21:22:12,045 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-11-06 21:22:12,046 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-06 21:22:12,046 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-11-06 21:22:12,046 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-06 21:22:12,046 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-06 21:22:12,046 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-11-06 21:22:12,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:22:12 BoogieIcfgContainer [2019-11-06 21:22:12,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 21:22:12,065 INFO L168 Benchmark]: Toolchain (without parser) took 2898.08 ms. Allocated memory was 136.8 MB in the beginning and 230.2 MB in the end (delta: 93.3 MB). Free memory was 101.5 MB in the beginning and 153.9 MB in the end (delta: -52.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:12,066 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 21:22:12,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.36 ms. Allocated memory is still 136.8 MB. Free memory was 101.3 MB in the beginning and 91.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:12,068 INFO L168 Benchmark]: Boogie Preprocessor took 129.28 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 91.8 MB in the beginning and 178.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:12,069 INFO L168 Benchmark]: RCFGBuilder took 264.65 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 166.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:12,070 INFO L168 Benchmark]: TraceAbstraction took 2231.34 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 166.0 MB in the beginning and 153.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. [2019-11-06 21:22:12,074 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 268.36 ms. Allocated memory is still 136.8 MB. Free memory was 101.3 MB in the beginning and 91.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.28 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 91.8 MB in the beginning and 178.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 264.65 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 166.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2231.34 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 166.0 MB in the beginning and 153.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 42.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (glob2_pathlim_off <= MAXPATHLEN && 1 <= MAXPATHLEN) && 0 <= glob2_p_off - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 45 SDslu, 201 SDs, 0 SdLazy, 157 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 27 NumberOfFragments, 42 HoareAnnotationTreeSize, 16 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 10311 SizeOfPredicates, 10 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 143/164 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...