/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:47:11,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:47:11,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:47:11,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:47:11,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:47:11,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:47:11,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:47:11,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:47:11,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:47:11,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:47:11,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:47:11,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:47:11,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:47:11,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:47:11,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:47:11,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:47:11,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:47:11,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:47:11,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:47:11,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:47:11,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:47:11,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:47:11,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:47:11,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:47:11,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:47:11,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:47:11,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:47:11,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:47:11,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:47:11,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:47:11,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:47:11,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:47:11,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:47:11,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:47:11,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:47:11,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:47:11,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:47:11,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:47:11,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:47:11,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:47:11,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:47:11,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:47:11,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:47:11,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:47:11,463 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:47:11,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:47:11,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:47:11,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:47:11,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:47:11,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:47:11,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:47:11,465 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:47:11,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:47:11,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:47:11,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:47:11,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:47:11,927 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:47:11,928 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i [2020-09-04 17:47:12,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02661f296/4155c2773e134e41acce54838022c72c/FLAGa80bfe3dc [2020-09-04 17:47:12,552 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:47:12,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/MADWiFi-encode_ie_ok.i [2020-09-04 17:47:12,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02661f296/4155c2773e134e41acce54838022c72c/FLAGa80bfe3dc [2020-09-04 17:47:12,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02661f296/4155c2773e134e41acce54838022c72c [2020-09-04 17:47:12,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:47:12,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:47:12,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:47:12,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:47:12,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:47:12,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:47:12" (1/1) ... [2020-09-04 17:47:12,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:12, skipping insertion in model container [2020-09-04 17:47:12,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:47:12" (1/1) ... [2020-09-04 17:47:12,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:47:12,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:47:13,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:47:13,255 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:47:13,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:47:13,304 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:47:13,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13 WrapperNode [2020-09-04 17:47:13,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:47:13,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:47:13,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:47:13,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:47:13,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... [2020-09-04 17:47:13,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:47:13,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:47:13,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:47:13,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:47:13,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 17:47:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:47:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:47:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:47:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:47:13,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:47:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:47:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:47:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:47:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:47:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:47:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:47:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:47:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:47:13,871 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:47:13,872 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 17:47:13,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:47:13 BoogieIcfgContainer [2020-09-04 17:47:13,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:47:13,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:47:13,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:47:13,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:47:13,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:47:12" (1/3) ... [2020-09-04 17:47:13,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443a1a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:47:13, skipping insertion in model container [2020-09-04 17:47:13,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:47:13" (2/3) ... [2020-09-04 17:47:13,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443a1a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:47:13, skipping insertion in model container [2020-09-04 17:47:13,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:47:13" (3/3) ... [2020-09-04 17:47:13,890 INFO L109 eAbstractionObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.i [2020-09-04 17:47:13,907 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:47:13,922 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:47:13,952 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:47:13,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:47:13,991 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:47:13,991 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:47:13,991 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:47:13,991 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:47:13,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:47:13,992 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:47:13,992 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:47:14,018 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-09-04 17:47:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 17:47:14,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:47:14,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:47:14,054 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:47:14,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:47:14,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1281286412, now seen corresponding path program 1 times [2020-09-04 17:47:14,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:47:14,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326311907] [2020-09-04 17:47:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:47:14,175 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:47:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:14,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:47:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:47:14,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326311907] [2020-09-04 17:47:14,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:47:14,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:47:14,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291985026] [2020-09-04 17:47:14,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:47:14,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:47:14,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:47:14,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:47:14,500 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 7 states. [2020-09-04 17:47:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:47:14,752 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2020-09-04 17:47:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 17:47:14,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-09-04 17:47:14,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:47:14,768 INFO L225 Difference]: With dead ends: 77 [2020-09-04 17:47:14,768 INFO L226 Difference]: Without dead ends: 49 [2020-09-04 17:47:14,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:47:14,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-04 17:47:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-04 17:47:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-04 17:47:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2020-09-04 17:47:14,834 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 37 [2020-09-04 17:47:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:47:14,835 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2020-09-04 17:47:14,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:47:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2020-09-04 17:47:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-04 17:47:14,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:47:14,837 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:47:14,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:47:14,838 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:47:14,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:47:14,839 INFO L82 PathProgramCache]: Analyzing trace with hash -594029260, now seen corresponding path program 1 times [2020-09-04 17:47:14,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:47:14,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909516824] [2020-09-04 17:47:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:47:14,843 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:47:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:47:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-04 17:47:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:47:15,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909516824] [2020-09-04 17:47:15,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:47:15,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:47:15,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536065232] [2020-09-04 17:47:15,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:47:15,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:47:15,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:47:15,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:47:15,044 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 8 states. [2020-09-04 17:47:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:47:15,268 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-04 17:47:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 17:47:15,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-04 17:47:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:47:15,274 INFO L225 Difference]: With dead ends: 59 [2020-09-04 17:47:15,274 INFO L226 Difference]: Without dead ends: 57 [2020-09-04 17:47:15,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-04 17:47:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-04 17:47:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-09-04 17:47:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-04 17:47:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-09-04 17:47:15,300 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 42 [2020-09-04 17:47:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:47:15,300 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-09-04 17:47:15,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:47:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-09-04 17:47:15,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 17:47:15,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:47:15,304 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:47:15,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:47:15,305 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:47:15,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:47:15,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1318797830, now seen corresponding path program 1 times [2020-09-04 17:47:15,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:47:15,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265823054] [2020-09-04 17:47:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:47:15,333 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:47:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:47:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-04 17:47:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-04 17:47:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-04 17:47:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:47:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-04 17:47:15,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265823054] [2020-09-04 17:47:15,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:47:15,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-04 17:47:15,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870789595] [2020-09-04 17:47:15,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 17:47:15,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:47:15,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 17:47:15,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-04 17:47:15,623 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 12 states. [2020-09-04 17:47:15,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:47:15,969 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-09-04 17:47:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 17:47:15,970 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-09-04 17:47:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:47:15,972 INFO L225 Difference]: With dead ends: 57 [2020-09-04 17:47:15,972 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:47:15,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2020-09-04 17:47:15,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:47:15,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:47:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:47:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:47:15,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-09-04 17:47:15,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:47:15,975 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:47:15,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 17:47:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:47:15,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:47:15,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:47:15,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:47:16,393 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:47:16,394 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:47:16,394 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:47:16,395 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:47:16,395 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:47:16,395 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:47:16,395 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:47:16,395 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:47:16,396 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 17:47:16,396 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 17:47:16,396 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:47:16,396 INFO L271 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-09-04 17:47:16,397 INFO L264 CegarLoopResult]: At program point L27-1(lines 14 45) the Hoare annotation is: (<= 1 main_~leader_len~0) [2020-09-04 17:47:16,397 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 45) the Hoare annotation is: true [2020-09-04 17:47:16,397 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-09-04 17:47:16,397 INFO L271 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-09-04 17:47:16,398 INFO L271 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-09-04 17:47:16,398 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-09-04 17:47:16,398 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= (+ (* 2 main_~ielen~0) main_~p~0) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= (+ main_~p~0 2) main_~bufsize_0~0)) [2020-09-04 17:47:16,398 INFO L264 CegarLoopResult]: At program point L36(lines 36 37) the Hoare annotation is: (and (<= 1 main_~p~0) (<= (+ main_~bufsize~0 main_~p~0) main_~bufsize_0~0) (<= 1 main_~leader_len~0)) [2020-09-04 17:47:16,399 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (<= 1 main_~leader_len~0) [2020-09-04 17:47:16,399 INFO L264 CegarLoopResult]: At program point L28(lines 14 45) the Hoare annotation is: (<= 1 main_~leader_len~0) [2020-09-04 17:47:16,399 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-09-04 17:47:16,399 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (<= 1 main_~leader_len~0) [2020-09-04 17:47:16,399 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-09-04 17:47:16,400 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-09-04 17:47:16,400 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (<= main_~p~0 0) (<= 1 (+ main_~leader_len~0 main_~p~0))) [2020-09-04 17:47:16,400 INFO L264 CegarLoopResult]: At program point L29(lines 14 45) the Hoare annotation is: (<= 1 main_~leader_len~0) [2020-09-04 17:47:16,400 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-09-04 17:47:16,400 INFO L271 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-09-04 17:47:16,401 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-09-04 17:47:16,401 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-09-04 17:47:16,401 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-09-04 17:47:16,401 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-09-04 17:47:16,402 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (<= 1 main_~p~0) (<= (+ main_~bufsize~0 main_~p~0) main_~bufsize_0~0) (<= 1 main_~leader_len~0) (<= (+ (* 2 main_~ielen~0) main_~p~0) main_~bufsize_0~0)) [2020-09-04 17:47:16,402 INFO L264 CegarLoopResult]: At program point L38-3(lines 38 42) the Hoare annotation is: (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= (+ (* 2 main_~ielen~0) main_~p~0) (+ main_~bufsize_0~0 (* 2 main_~i~0) 2))) [2020-09-04 17:47:16,402 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (and (<= (+ main_~bufsize~0 main_~p~0) main_~bufsize_0~0) (<= main_~p~0 0) (<= 1 (+ main_~leader_len~0 main_~p~0))) [2020-09-04 17:47:16,403 INFO L264 CegarLoopResult]: At program point L38-4(line 38) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~ielen~0) main_~p~0))) (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= .cse0 (+ main_~bufsize_0~0 (* 2 main_~i~0) 2)) (<= .cse0 (+ main_~bufsize_0~0 (* 2 |main_#t~post3|) 2)))) [2020-09-04 17:47:16,403 INFO L264 CegarLoopResult]: At program point L38-5(line 38) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~ielen~0) main_~p~0))) (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= .cse0 (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= .cse0 (+ main_~bufsize_0~0 (* 2 |main_#t~post3|) 2)))) [2020-09-04 17:47:16,403 INFO L264 CegarLoopResult]: At program point L38-6(lines 38 42) the Hoare annotation is: (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= (+ (* 2 main_~ielen~0) main_~p~0) (+ main_~bufsize_0~0 (* 2 main_~i~0)))) [2020-09-04 17:47:16,404 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 45) the Hoare annotation is: true [2020-09-04 17:47:16,404 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-09-04 17:47:16,404 INFO L271 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-09-04 17:47:16,404 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-09-04 17:47:16,404 INFO L271 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-09-04 17:47:16,405 INFO L271 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: true [2020-09-04 17:47:16,405 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-09-04 17:47:16,405 INFO L271 CegarLoopResult]: At program point L43(lines 13 45) the Hoare annotation is: true [2020-09-04 17:47:16,405 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= (+ (* 2 main_~ielen~0) main_~p~0) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= (+ main_~p~0 2) main_~bufsize_0~0)) [2020-09-04 17:47:16,406 INFO L264 CegarLoopResult]: At program point L39-1(line 39) the Hoare annotation is: (and (<= 1 main_~p~0) (<= 1 main_~leader_len~0) (<= (+ (* 2 main_~ielen~0) main_~p~0) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= (+ main_~p~0 2) main_~bufsize_0~0)) [2020-09-04 17:47:16,406 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (<= (+ main_~leader_len~0 main_~bufsize~0 main_~p~0) main_~bufsize_0~0) (<= main_~p~0 0) (<= 1 (+ main_~leader_len~0 main_~p~0))) [2020-09-04 17:47:16,406 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 17:47:16,407 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:47:16,407 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:47:16,407 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:47:16,407 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:47:16,408 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:47:16,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:47:16 BoogieIcfgContainer [2020-09-04 17:47:16,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:47:16,439 INFO L168 Benchmark]: Toolchain (without parser) took 3542.18 ms. Allocated memory was 139.5 MB in the beginning and 235.4 MB in the end (delta: 95.9 MB). Free memory was 102.4 MB in the beginning and 104.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:47:16,440 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 139.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-04 17:47:16,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.26 ms. Allocated memory is still 139.5 MB. Free memory was 102.2 MB in the beginning and 92.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-04 17:47:16,442 INFO L168 Benchmark]: Boogie Preprocessor took 158.42 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.5 MB in the beginning and 184.4 MB in the end (delta: -92.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:47:16,443 INFO L168 Benchmark]: RCFGBuilder took 413.84 ms. Allocated memory is still 204.5 MB. Free memory was 184.4 MB in the beginning and 167.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:47:16,444 INFO L168 Benchmark]: TraceAbstraction took 2554.75 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 166.3 MB in the beginning and 104.8 MB in the end (delta: 61.6 MB). Peak memory consumption was 92.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:47:16,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 139.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 406.26 ms. Allocated memory is still 139.5 MB. Free memory was 102.2 MB in the beginning and 92.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.42 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 92.5 MB in the beginning and 184.4 MB in the end (delta: -92.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.84 ms. Allocated memory is still 204.5 MB. Free memory was 184.4 MB in the beginning and 167.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2554.75 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 166.3 MB in the beginning and 104.8 MB in the end (delta: 61.6 MB). Peak memory consumption was 92.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (1 <= p && 1 <= leader_len) && 2 * ielen + p <= bufsize_0 + 2 * i - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 57 SDslu, 720 SDs, 0 SdLazy, 293 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 82 PreInvPairs, 109 NumberOfFragments, 311 HoareAnnotationTreeSize, 82 FomulaSimplifications, 187 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 52 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...