/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/loops/trex01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:45:40,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:45:40,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:45:40,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:45:40,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:45:40,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:45:40,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:45:40,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:45:40,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:45:40,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:45:40,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:45:40,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:45:40,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:45:40,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:45:40,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:45:40,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:45:40,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:45:40,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:45:40,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:45:40,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:45:40,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:45:40,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:45:40,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:45:40,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:45:40,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:45:40,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:45:40,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:45:40,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:45:40,431 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 17:45:40,445 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:45:40,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:45:40,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:45:40,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:45:40,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:45:40,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:45:40,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:45:40,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:45:40,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:45:40,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:45:40,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:45:40,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:45:40,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:45:40,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:45:40,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:45:40,449 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:45:40,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:45:40,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:45:40,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:45:40,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:45:40,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:45:40,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:45:40,450 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:45:40,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:45:40,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:45:40,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:45:40,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:45:40,924 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:45:40,925 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-2.i [2020-09-04 17:45:41,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f982bd52/e63f31070a364b08be27163caa37f94a/FLAG435cbfa68 [2020-09-04 17:45:41,581 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:45:41,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/trex01-2.i [2020-09-04 17:45:41,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f982bd52/e63f31070a364b08be27163caa37f94a/FLAG435cbfa68 [2020-09-04 17:45:41,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f982bd52/e63f31070a364b08be27163caa37f94a [2020-09-04 17:45:41,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:45:41,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:45:41,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:45:41,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:45:41,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:45:41,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:45:41" (1/1) ... [2020-09-04 17:45:41,956 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 05:45:41, skipping insertion in model container [2020-09-04 17:45:41,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:45:41" (1/1) ... [2020-09-04 17:45:41,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:45:41,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:45:42,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:45:42,211 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:45:42,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:45:42,252 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:45:42,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42 WrapperNode [2020-09-04 17:45:42,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:45:42,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:45:42,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:45:42,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:45:42,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:45:42,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:45:42,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:45:42,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:45:42,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (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 17:45:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:45:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:45:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:45:42,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:45:42,448 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-04 17:45:42,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 17:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-04 17:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:45:42,736 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:45:42,736 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 17:45:42,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:45:42 BoogieIcfgContainer [2020-09-04 17:45:42,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:45:42,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:45:42,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:45:42,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:45:42,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:45:41" (1/3) ... [2020-09-04 17:45:42,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4208dff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:45:42, skipping insertion in model container [2020-09-04 17:45:42,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (2/3) ... [2020-09-04 17:45:42,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4208dff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:45:42, skipping insertion in model container [2020-09-04 17:45:42,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:45:42" (3/3) ... [2020-09-04 17:45:42,754 INFO L109 eAbstractionObserver]: Analyzing ICFG trex01-2.i [2020-09-04 17:45:42,768 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:45:42,779 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:45:42,805 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:45:42,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:45:42,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:45:42,857 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:45:42,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:45:42,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:45:42,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:45:42,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:45:42,858 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:45:42,880 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-09-04 17:45:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-04 17:45:42,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:45:42,894 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] [2020-09-04 17:45:42,894 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:45:42,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:45:42,901 INFO L82 PathProgramCache]: Analyzing trace with hash 36846836, now seen corresponding path program 1 times [2020-09-04 17:45:42,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:45:42,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296113476] [2020-09-04 17:45:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:45:42,983 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:45:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:43,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:45:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:43,183 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 17:45:43,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296113476] [2020-09-04 17:45:43,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:45:43,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:45:43,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396499152] [2020-09-04 17:45:43,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:45:43,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:45:43,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:45:43,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:45:43,230 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 5 states. [2020-09-04 17:45:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:45:43,351 INFO L93 Difference]: Finished difference Result 84 states and 107 transitions. [2020-09-04 17:45:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 17:45:43,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-04 17:45:43,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:45:43,363 INFO L225 Difference]: With dead ends: 84 [2020-09-04 17:45:43,364 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:45:43,370 INFO L675 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 [2020-09-04 17:45:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:45:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:45:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:45:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:45:43,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-09-04 17:45:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:45:43,404 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:45:43,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:45:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:45:43,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:45:43,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:45:43,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:45:43,627 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:45:43,628 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:45:43,628 INFO L271 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: true [2020-09-04 17:45:43,628 INFO L271 CegarLoopResult]: At program point L27(lines 27 34) the Hoare annotation is: true [2020-09-04 17:45:43,628 INFO L271 CegarLoopResult]: At program point L27-2(lines 25 35) the Hoare annotation is: true [2020-09-04 17:45:43,628 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,629 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,629 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,629 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,629 INFO L264 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,629 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,630 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,630 INFO L271 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,630 INFO L271 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,630 INFO L271 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,630 INFO L271 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,631 INFO L271 CegarLoopResult]: At program point L15-7(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,631 INFO L271 CegarLoopResult]: At program point fEXIT(lines 14 36) the Hoare annotation is: true [2020-09-04 17:45:43,631 INFO L271 CegarLoopResult]: At program point L15-8(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,631 INFO L271 CegarLoopResult]: At program point L15-9(line 15) the Hoare annotation is: true [2020-09-04 17:45:43,631 INFO L271 CegarLoopResult]: At program point fENTRY(lines 14 36) the Hoare annotation is: true [2020-09-04 17:45:43,631 INFO L271 CegarLoopResult]: At program point L28(lines 28 29) the Hoare annotation is: true [2020-09-04 17:45:43,632 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,632 INFO L264 CegarLoopResult]: At program point L20(lines 14 36) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,632 INFO L264 CegarLoopResult]: At program point L16(lines 16 18) the Hoare annotation is: (<= 1 f_~z~0) [2020-09-04 17:45:43,632 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-09-04 17:45:43,633 INFO L271 CegarLoopResult]: At program point L25-2(lines 14 36) the Hoare annotation is: true [2020-09-04 17:45:43,633 INFO L271 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: true [2020-09-04 17:45:43,633 INFO L271 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: true [2020-09-04 17:45:43,633 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-09-04 17:45:43,633 INFO L271 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-09-04 17:45:43,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:45:43,634 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:45:43,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:45:43,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:45:43,634 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:45:43,634 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:45:43,635 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 17:45:43,635 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 17:45:43,635 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:45:43,635 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 37 45) the Hoare annotation is: true [2020-09-04 17:45:43,635 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 37 45) the Hoare annotation is: true [2020-09-04 17:45:43,636 INFO L271 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-09-04 17:45:43,636 INFO L271 CegarLoopResult]: At program point L42-1(lines 39 43) the Hoare annotation is: true [2020-09-04 17:45:43,636 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 37 45) the Hoare annotation is: true [2020-09-04 17:45:43,636 INFO L271 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: true [2020-09-04 17:45:43,636 INFO L271 CegarLoopResult]: At program point L39(lines 39 43) the Hoare annotation is: true [2020-09-04 17:45:43,636 INFO L271 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: true [2020-09-04 17:45:43,637 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 17:45:43,637 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 17:45:43,637 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:45:43,637 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 17:45:43,638 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 17:45:43,638 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:45:43,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:45:43 BoogieIcfgContainer [2020-09-04 17:45:43,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:45:43,668 INFO L168 Benchmark]: Toolchain (without parser) took 1724.17 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 103.1 MB in the beginning and 114.8 MB in the end (delta: -11.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,669 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 17:45:43,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.41 ms. Allocated memory is still 139.5 MB. Free memory was 102.9 MB in the beginning and 92.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,671 INFO L168 Benchmark]: Boogie Preprocessor took 121.99 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 92.9 MB in the beginning and 181.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,672 INFO L168 Benchmark]: RCFGBuilder took 367.67 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 165.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,673 INFO L168 Benchmark]: TraceAbstraction took 919.00 ms. Allocated memory is still 202.9 MB. Free memory was 164.6 MB in the beginning and 114.8 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.41 ms. Allocated memory is still 139.5 MB. Free memory was 102.9 MB in the beginning and 92.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.99 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 92.9 MB in the beginning and 181.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.67 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 165.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 919.00 ms. Allocated memory is still 202.9 MB. Free memory was 164.6 MB in the beginning and 114.8 MB in the end (delta: 49.8 MB). Peak memory consumption was 49.8 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: 19]: Loop Invariant Derived loop invariant: 1 <= z - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for f Derived contract for procedure f: 1 - ProcedureContractResult [Line: 37]: 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 6 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 24 SDslu, 132 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 84 PreInvPairs, 143 NumberOfFragments, 88 HoareAnnotationTreeSize, 84 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 49 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s 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...