/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/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:45:33,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:45:33,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:45:34,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:45:34,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:45:34,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:45:34,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:45:34,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:45:34,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:45:34,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:45:34,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:45:34,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:45:34,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:45:34,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:45:34,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:45:34,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:45:34,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:45:34,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:45:34,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:45:34,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:45:34,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:45:34,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:45:34,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:45:34,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:45:34,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:45:34,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:45:34,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:45:34,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:45:34,047 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 17:45:34,058 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:45:34,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:45:34,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:45:34,060 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:45:34,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:45:34,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:45:34,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:45:34,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:45:34,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:45:34,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:45:34,061 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:45:34,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:45:34,062 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:45:34,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:45:34,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:45:34,062 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:45:34,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:45:34,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:45:34,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:45:34,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:45:34,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:45:34,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:45:34,064 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:45:34,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:45:34,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:45:34,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:45:34,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:45:34,558 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:45:34,560 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c [2020-09-04 17:45:34,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f46af5a94/a670eacc86414670af4fcb3162f411fe/FLAGde1cebddd [2020-09-04 17:45:35,199 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:45:35,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/terminator_02-2.c [2020-09-04 17:45:35,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f46af5a94/a670eacc86414670af4fcb3162f411fe/FLAGde1cebddd [2020-09-04 17:45:35,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f46af5a94/a670eacc86414670af4fcb3162f411fe [2020-09-04 17:45:35,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:45:35,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:45:35,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:45:35,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:45:35,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:45:35,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:35,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120586d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35, skipping insertion in model container [2020-09-04 17:45:35,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:35,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:45:35,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:45:35,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:45:35,886 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:45:35,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:45:35,928 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:45:35,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35 WrapperNode [2020-09-04 17:45:35,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:45:35,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:45:35,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:45:35,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:45:35,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:35,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:36,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:36,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:36,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:36,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:36,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (1/1) ... [2020-09-04 17:45:36,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:45:36,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:45:36,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:45:36,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:45:36,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (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 17:45:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:45:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:45:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:45:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:45:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:45:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:45:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:45:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:45:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:45:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:45:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 17:45:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:45:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:45:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:45:36,384 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:45:36,384 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 17:45:36,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:45:36 BoogieIcfgContainer [2020-09-04 17:45:36,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:45:36,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:45:36,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:45:36,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:45:36,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:45:35" (1/3) ... [2020-09-04 17:45:36,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f04eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:45:36, skipping insertion in model container [2020-09-04 17:45:36,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:35" (2/3) ... [2020-09-04 17:45:36,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f04eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:45:36, skipping insertion in model container [2020-09-04 17:45:36,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:45:36" (3/3) ... [2020-09-04 17:45:36,403 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2020-09-04 17:45:36,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:45:36,432 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:45:36,461 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:45:36,496 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:45:36,496 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:45:36,496 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:45:36,497 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:45:36,497 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:45:36,497 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:45:36,497 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:45:36,498 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:45:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-09-04 17:45:36,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-04 17:45:36,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:45:36,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:45:36,535 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:45:36,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:45:36,544 INFO L82 PathProgramCache]: Analyzing trace with hash 664980376, now seen corresponding path program 1 times [2020-09-04 17:45:36,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:45:36,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456667618] [2020-09-04 17:45:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:45:36,631 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:45:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:36,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:45:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:36,726 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 17:45:36,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456667618] [2020-09-04 17:45:36,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:45:36,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-04 17:45:36,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730578056] [2020-09-04 17:45:36,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-04 17:45:36,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:45:36,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-04 17:45:36,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:45:36,762 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-09-04 17:45:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:45:36,799 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-09-04 17:45:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-04 17:45:36,801 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-09-04 17:45:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:45:36,813 INFO L225 Difference]: With dead ends: 55 [2020-09-04 17:45:36,814 INFO L226 Difference]: Without dead ends: 32 [2020-09-04 17:45:36,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:45:36,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-04 17:45:36,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-04 17:45:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 17:45:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-09-04 17:45:36,870 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19 [2020-09-04 17:45:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:45:36,871 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-09-04 17:45:36,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-04 17:45:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-09-04 17:45:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-04 17:45:36,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:45:36,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:45:36,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:45:36,874 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:45:36,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:45:36,875 INFO L82 PathProgramCache]: Analyzing trace with hash 645586435, now seen corresponding path program 1 times [2020-09-04 17:45:36,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:45:36,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097412925] [2020-09-04 17:45:36,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:45:36,878 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:45:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:37,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:45:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:37,033 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 17:45:37,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097412925] [2020-09-04 17:45:37,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:45:37,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 17:45:37,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810985458] [2020-09-04 17:45:37,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 17:45:37,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:45:37,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 17:45:37,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 17:45:37,037 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2020-09-04 17:45:37,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:45:37,184 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-09-04 17:45:37,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 17:45:37,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-09-04 17:45:37,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:45:37,187 INFO L225 Difference]: With dead ends: 38 [2020-09-04 17:45:37,188 INFO L226 Difference]: Without dead ends: 33 [2020-09-04 17:45:37,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:45:37,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-04 17:45:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-04 17:45:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-04 17:45:37,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-04 17:45:37,212 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2020-09-04 17:45:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:45:37,212 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-04 17:45:37,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 17:45:37,213 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-04 17:45:37,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-04 17:45:37,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:45:37,217 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] [2020-09-04 17:45:37,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:45:37,217 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:45:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:45:37,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1512571145, now seen corresponding path program 1 times [2020-09-04 17:45:37,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:45:37,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372132034] [2020-09-04 17:45:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:45:37,267 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:45:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:37,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:45:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:45:37,367 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 17:45:37,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372132034] [2020-09-04 17:45:37,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:45:37,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:45:37,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767068304] [2020-09-04 17:45:37,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:45:37,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:45:37,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:45:37,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:45:37,371 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states. [2020-09-04 17:45:37,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:45:37,417 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-09-04 17:45:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 17:45:37,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-04 17:45:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:45:37,418 INFO L225 Difference]: With dead ends: 33 [2020-09-04 17:45:37,418 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:45:37,419 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 17:45:37,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:45:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:45:37,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:45:37,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:45:37,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-04 17:45:37,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:45:37,421 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:45:37,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:45:37,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:45:37,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:45:37,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:45:37,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:45:37,636 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:45:37,636 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:45:37,636 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:45:37,636 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:45:37,637 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:45:37,637 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:45:37,637 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-04 17:45:37,637 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-04 17:45:37,637 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-04 17:45:37,638 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-04 17:45:37,638 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-04 17:45:37,638 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,638 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,638 INFO L271 CegarLoopResult]: At program point L31-2(line 31) the Hoare annotation is: true [2020-09-04 17:45:37,639 INFO L264 CegarLoopResult]: At program point L27(lines 27 32) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,639 INFO L271 CegarLoopResult]: At program point L27-2(lines 24 33) the Hoare annotation is: true [2020-09-04 17:45:37,639 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 16 38) the Hoare annotation is: true [2020-09-04 17:45:37,639 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,640 INFO L271 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-09-04 17:45:37,640 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-09-04 17:45:37,640 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-09-04 17:45:37,640 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-09-04 17:45:37,640 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,641 INFO L264 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,641 INFO L264 CegarLoopResult]: At program point L28-2(line 28) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,641 INFO L264 CegarLoopResult]: At program point L24-2(lines 24 33) the Hoare annotation is: (or (<= main_~z~0 100) (< 99 main_~x~0)) [2020-09-04 17:45:37,641 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-09-04 17:45:37,642 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-09-04 17:45:37,642 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-09-04 17:45:37,642 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-09-04 17:45:37,642 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 16 38) the Hoare annotation is: true [2020-09-04 17:45:37,642 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,643 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 38) the Hoare annotation is: true [2020-09-04 17:45:37,643 INFO L264 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,643 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,643 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,644 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (< 100 main_~z~0) [2020-09-04 17:45:37,644 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-09-04 17:45:37,644 INFO L271 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-09-04 17:45:37,644 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-09-04 17:45:37,644 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-09-04 17:45:37,645 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-09-04 17:45:37,645 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-09-04 17:45:37,645 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 7 12) the Hoare annotation is: true [2020-09-04 17:45:37,645 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:45:37,646 INFO L264 CegarLoopResult]: At program point L8(lines 8 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:45:37,646 INFO L271 CegarLoopResult]: At program point L8-2(lines 7 12) the Hoare annotation is: true [2020-09-04 17:45:37,646 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:45:37,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:45:37 BoogieIcfgContainer [2020-09-04 17:45:37,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:45:37,664 INFO L168 Benchmark]: Toolchain (without parser) took 2117.23 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 97.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:37,665 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 17:45:37,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.13 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:37,667 INFO L168 Benchmark]: Boogie Preprocessor took 113.89 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 178.8 MB in the end (delta: -86.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:37,668 INFO L168 Benchmark]: RCFGBuilder took 348.76 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 164.0 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:37,669 INFO L168 Benchmark]: TraceAbstraction took 1266.39 ms. Allocated memory is still 200.8 MB. Free memory was 163.3 MB in the beginning and 97.2 MB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:37,674 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 380.13 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.89 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 178.8 MB in the end (delta: -86.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.76 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 164.0 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1266.39 ms. Allocated memory is still 200.8 MB. Free memory was 163.3 MB in the beginning and 97.2 MB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 1 - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 15 SDslu, 165 SDs, 0 SdLazy, 48 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 55 PreInvPairs, 67 NumberOfFragments, 84 HoareAnnotationTreeSize, 55 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 43 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s 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...