/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-lit/css2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:49:23,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:49:23,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:49:23,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 17:49:23,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:49:23,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:49:23,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:49:23,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:49:23,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:49:23,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:49:23,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:49:23,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:49:23,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:49:23,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:49:23,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:49:23,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:49:23,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:49:23,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:49:23,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:49:23,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:49:23,716 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 17:49:23,745 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:49:23,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:49:23,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:49:23,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:49:23,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:49:23,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:49:23,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:49:23,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:49:23,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:49:23,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:49:23,750 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:49:23,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:49:23,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:49:23,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:49:23,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:49:23,751 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:49:23,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:49:23,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:49:23,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:49:23,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:49:23,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:49:23,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:49:23,753 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:49:24,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:49:24,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:49:24,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:49:24,271 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:49:24,272 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:49:24,273 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/css2003.i [2020-09-04 17:49:24,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc1c0b49d/14ae221e8f2c49148f54846097497622/FLAG5ea020bcc [2020-09-04 17:49:24,938 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:49:24,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/css2003.i [2020-09-04 17:49:24,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc1c0b49d/14ae221e8f2c49148f54846097497622/FLAG5ea020bcc [2020-09-04 17:49:25,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc1c0b49d/14ae221e8f2c49148f54846097497622 [2020-09-04 17:49:25,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:49:25,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:49:25,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:49:25,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:49:25,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:49:25,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1aada5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25, skipping insertion in model container [2020-09-04 17:49:25,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:49:25,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:49:25,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:49:25,601 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:49:25,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:49:25,658 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:49:25,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25 WrapperNode [2020-09-04 17:49:25,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:49:25,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:49:25,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:49:25,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:49:25,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (1/1) ... [2020-09-04 17:49:25,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:49:25,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:49:25,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:49:25,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:49:25,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (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 17:49:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:49:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:49:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:49:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:49:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:49:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:49:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:49:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:49:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:49:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:49:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:49:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:49:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:49:26,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:49:26,163 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 17:49:26,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:49:26 BoogieIcfgContainer [2020-09-04 17:49:26,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:49:26,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:49:26,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:49:26,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:49:26,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:49:25" (1/3) ... [2020-09-04 17:49:26,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8d24b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:49:26, skipping insertion in model container [2020-09-04 17:49:26,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:25" (2/3) ... [2020-09-04 17:49:26,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8d24b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:49:26, skipping insertion in model container [2020-09-04 17:49:26,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:49:26" (3/3) ... [2020-09-04 17:49:26,183 INFO L109 eAbstractionObserver]: Analyzing ICFG css2003.i [2020-09-04 17:49:26,197 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:49:26,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:49:26,240 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:49:26,320 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:49:26,320 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:49:26,320 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:49:26,320 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:49:26,320 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:49:26,320 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:49:26,321 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:49:26,321 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:49:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-04 17:49:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-04 17:49:26,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:26,370 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] [2020-09-04 17:49:26,370 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:26,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:26,378 INFO L82 PathProgramCache]: Analyzing trace with hash 318822911, now seen corresponding path program 1 times [2020-09-04 17:49:26,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:26,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254845807] [2020-09-04 17:49:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:26,468 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:26,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:26,767 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 17:49:26,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254845807] [2020-09-04 17:49:26,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:26,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:49:26,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288405870] [2020-09-04 17:49:26,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:49:26,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:26,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:49:26,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:49:26,805 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 8 states. [2020-09-04 17:49:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:27,027 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-09-04 17:49:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 17:49:27,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-09-04 17:49:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:27,040 INFO L225 Difference]: With dead ends: 48 [2020-09-04 17:49:27,040 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:49:27,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:49:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:49:27,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:49:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:49:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:49:27,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-04 17:49:27,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:27,077 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:49:27,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:49:27,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:49:27,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:49:27,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:49:27,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:49:27,397 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:49:27,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:49:27,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:49:27,398 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:49:27,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:49:27,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:49:27,399 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:27,399 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:27,399 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 17:49:27,399 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 17:49:27,400 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:27,400 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 13 26) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~i~0 1)) (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0)))) [2020-09-04 17:49:27,400 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2020-09-04 17:49:27,401 INFO L264 CegarLoopResult]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 1 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2020-09-04 17:49:27,401 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 3) (<= 2 .cse0))) [2020-09-04 17:49:27,401 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (<= 1 main_~i~0) (<= main_~i~0 1)) [2020-09-04 17:49:27,402 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 24) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2020-09-04 17:49:27,402 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (<= 1 main_~i~0) (<= main_~i~0 1)) [2020-09-04 17:49:27,402 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-09-04 17:49:27,402 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (<= 1 main_~i~0) (<= main_~i~0 1)) [2020-09-04 17:49:27,403 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 13 26) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~i~0 1)) (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 2) (<= 1 .cse0)))) [2020-09-04 17:49:27,403 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-09-04 17:49:27,403 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 2 main_~i~0) (<= .cse0 3) (<= 2 .cse0))) [2020-09-04 17:49:27,404 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= 1 main_~i~0) (<= .cse0 2) (<= 1 .cse0))) [2020-09-04 17:49:27,404 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (<= 1 main_~i~0) (<= main_~i~0 1)) [2020-09-04 17:49:27,404 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= 1 main_~i~0) (<= main_~i~0 1)) [2020-09-04 17:49:27,404 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (<= 1 main_~i~0) (<= main_~i~0 1)) [2020-09-04 17:49:27,405 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-09-04 17:49:27,405 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-09-04 17:49:27,405 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 17:49:27,405 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 17:49:27,406 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:49:27,406 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 17:49:27,406 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 17:49:27,406 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:49:27,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:49:27 BoogieIcfgContainer [2020-09-04 17:49:27,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:49:27,438 INFO L168 Benchmark]: Toolchain (without parser) took 2139.27 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 103.7 MB in the beginning and 98.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:27,439 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 17:49:27,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.15 ms. Allocated memory is still 138.9 MB. Free memory was 103.5 MB in the beginning and 94.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:27,441 INFO L168 Benchmark]: Boogie Preprocessor took 49.32 ms. Allocated memory is still 138.9 MB. Free memory was 94.1 MB in the beginning and 92.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:27,442 INFO L168 Benchmark]: RCFGBuilder took 458.24 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 92.5 MB in the beginning and 170.9 MB in the end (delta: -78.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:27,443 INFO L168 Benchmark]: TraceAbstraction took 1264.02 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 98.2 MB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:27,448 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 362.15 ms. Allocated memory is still 138.9 MB. Free memory was 103.5 MB in the beginning and 94.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.32 ms. Allocated memory is still 138.9 MB. Free memory was 94.1 MB in the beginning and 92.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.24 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 92.5 MB in the beginning and 170.9 MB in the end (delta: -78.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1264.02 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 98.2 MB in the end (delta: 72.6 MB). Peak memory consumption was 72.6 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 <= i && i + k <= 2) && 1 <= i + k - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: (1 <= i && i <= 1) || ((2 <= i && i + k <= 2) && 1 <= i + k) - 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, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 17 SDslu, 88 SDs, 0 SdLazy, 61 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 30 LocationsWithAnnotation, 36 PreInvPairs, 52 NumberOfFragments, 211 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 51 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...