/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 12:17:26,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 12:17:26,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 12:17:26,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 12:17:26,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 12:17:26,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 12:17:26,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 12:17:26,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 12:17:26,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 12:17:26,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 12:17:26,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 12:17:26,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 12:17:26,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 12:17:26,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 12:17:26,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 12:17:26,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 12:17:26,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 12:17:26,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 12:17:26,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 12:17:26,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 12:17:26,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 12:17:26,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 12:17:26,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 12:17:26,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 12:17:26,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 12:17:26,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 12:17:26,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 12:17:26,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 12:17:26,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 12:17:26,758 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 12:17:26,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 12:17:26,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 12:17:26,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 12:17:26,760 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 12:17:26,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 12:17:26,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 12:17:26,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 12:17:26,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 12:17:26,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 12:17:26,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 12:17:26,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 12:17:26,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 12:17:26,762 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 12:17:26,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 12:17:26,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 12:17:26,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 12:17:26,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 12:17:26,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 12:17:26,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 12:17:26,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 12:17:26,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:17:26,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 12:17:26,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 12:17:26,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 12:17:26,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 12:17:26,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:26,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 12:17:26,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 12:17:26,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 12:17:27,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 12:17:27,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 12:17:27,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 12:17:27,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 12:17:27,090 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 12:17:27,091 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt7.c [2020-07-20 12:17:27,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a9be273/5aadbf4695e54ab5a63702e335ad5065/FLAGedc4ad8b9 [2020-07-20 12:17:27,701 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 12:17:27,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt7.c [2020-07-20 12:17:27,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a9be273/5aadbf4695e54ab5a63702e335ad5065/FLAGedc4ad8b9 [2020-07-20 12:17:28,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a9be273/5aadbf4695e54ab5a63702e335ad5065 [2020-07-20 12:17:28,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 12:17:28,094 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 12:17:28,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 12:17:28,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 12:17:28,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 12:17:28,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19115b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28, skipping insertion in model container [2020-07-20 12:17:28,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 12:17:28,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 12:17:28,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:17:28,380 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 12:17:28,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:17:28,425 INFO L208 MainTranslator]: Completed translation [2020-07-20 12:17:28,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28 WrapperNode [2020-07-20 12:17:28,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 12:17:28,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 12:17:28,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 12:17:28,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 12:17:28,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... [2020-07-20 12:17:28,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 12:17:28,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 12:17:28,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 12:17:28,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 12:17:28,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:17:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 12:17:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 12:17:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 12:17:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 12:17:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 12:17:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 12:17:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 12:17:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 12:17:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 12:17:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 12:17:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 12:17:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 12:17:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 12:17:28,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 12:17:28,979 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 12:17:28,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:17:28 BoogieIcfgContainer [2020-07-20 12:17:28,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 12:17:28,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 12:17:28,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 12:17:28,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 12:17:28,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:17:28" (1/3) ... [2020-07-20 12:17:28,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c638a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:17:28, skipping insertion in model container [2020-07-20 12:17:28,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:17:28" (2/3) ... [2020-07-20 12:17:28,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c638a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:17:28, skipping insertion in model container [2020-07-20 12:17:28,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:17:28" (3/3) ... [2020-07-20 12:17:28,991 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt7.c [2020-07-20 12:17:29,001 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 12:17:29,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 12:17:29,022 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 12:17:29,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 12:17:29,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 12:17:29,046 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 12:17:29,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 12:17:29,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 12:17:29,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 12:17:29,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 12:17:29,047 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 12:17:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-20 12:17:29,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 12:17:29,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:17:29,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:17:29,075 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:17:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:17:29,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1473118151, now seen corresponding path program 1 times [2020-07-20 12:17:29,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:17:29,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509239806] [2020-07-20 12:17:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:17:29,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 12:17:29,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:17:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:17:29,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:17:29,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509239806] [2020-07-20 12:17:29,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:17:29,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 12:17:29,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313942450] [2020-07-20 12:17:29,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 12:17:29,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:17:29,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 12:17:29,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 12:17:29,463 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 7 states. [2020-07-20 12:17:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:17:29,741 INFO L93 Difference]: Finished difference Result 68 states and 99 transitions. [2020-07-20 12:17:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 12:17:29,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-20 12:17:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:17:29,754 INFO L225 Difference]: With dead ends: 68 [2020-07-20 12:17:29,755 INFO L226 Difference]: Without dead ends: 37 [2020-07-20 12:17:29,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-20 12:17:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-20 12:17:29,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-07-20 12:17:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-20 12:17:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2020-07-20 12:17:29,807 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 14 [2020-07-20 12:17:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:17:29,807 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2020-07-20 12:17:29,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 12:17:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2020-07-20 12:17:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-20 12:17:29,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:17:29,809 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:17:30,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:30,021 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:17:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:17:30,022 INFO L82 PathProgramCache]: Analyzing trace with hash 633537884, now seen corresponding path program 1 times [2020-07-20 12:17:30,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:17:30,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71362817] [2020-07-20 12:17:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:17:30,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-20 12:17:30,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:17:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:17:30,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:17:30,359 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:17:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 12:17:30,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71362817] [2020-07-20 12:17:30,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 12:17:30,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2020-07-20 12:17:30,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006695779] [2020-07-20 12:17:30,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 12:17:30,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:17:30,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 12:17:30,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-07-20 12:17:30,592 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 6 states. [2020-07-20 12:17:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:17:45,265 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-07-20 12:17:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 12:17:45,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-20 12:17:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:17:45,268 INFO L225 Difference]: With dead ends: 52 [2020-07-20 12:17:45,268 INFO L226 Difference]: Without dead ends: 50 [2020-07-20 12:17:45,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-20 12:17:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-20 12:17:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-07-20 12:17:45,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-20 12:17:45,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-07-20 12:17:45,293 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 27 [2020-07-20 12:17:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:17:45,294 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-07-20 12:17:45,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 12:17:45,295 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-07-20 12:17:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-20 12:17:45,297 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:17:45,298 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:17:45,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:45,500 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:17:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:17:45,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1461697819, now seen corresponding path program 1 times [2020-07-20 12:17:45,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:17:45,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435397896] [2020-07-20 12:17:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:17:45,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-20 12:17:45,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:17:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 12:17:45,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:17:45,856 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:17:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 12:17:46,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435397896] [2020-07-20 12:17:46,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 12:17:46,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2020-07-20 12:17:46,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186792312] [2020-07-20 12:17:46,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 12:17:46,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:17:46,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 12:17:46,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-07-20 12:17:46,223 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 6 states. [2020-07-20 12:18:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:18:02,983 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2020-07-20 12:18:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 12:18:02,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-07-20 12:18:02,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:18:02,989 INFO L225 Difference]: With dead ends: 65 [2020-07-20 12:18:02,989 INFO L226 Difference]: Without dead ends: 63 [2020-07-20 12:18:02,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-07-20 12:18:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-20 12:18:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 50. [2020-07-20 12:18:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-20 12:18:03,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-07-20 12:18:03,011 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 36 [2020-07-20 12:18:03,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:18:03,011 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-07-20 12:18:03,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 12:18:03,012 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-07-20 12:18:03,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 12:18:03,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:18:03,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:18:03,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:03,228 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:18:03,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:18:03,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1151779408, now seen corresponding path program 1 times [2020-07-20 12:18:03,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:18:03,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189245838] [2020-07-20 12:18:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:18:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:18:03,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-20 12:18:03,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:18:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 12:18:03,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:18:03,545 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:18:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 7 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 12:18:16,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189245838] [2020-07-20 12:18:16,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:18:16,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2020-07-20 12:18:16,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156864658] [2020-07-20 12:18:16,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 12:18:16,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:18:16,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 12:18:16,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=185, Unknown=6, NotChecked=0, Total=240 [2020-07-20 12:18:16,608 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 16 states. [2020-07-20 12:19:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:19:09,238 INFO L93 Difference]: Finished difference Result 91 states and 122 transitions. [2020-07-20 12:19:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 12:19:09,238 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-07-20 12:19:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:19:09,240 INFO L225 Difference]: With dead ends: 91 [2020-07-20 12:19:09,240 INFO L226 Difference]: Without dead ends: 63 [2020-07-20 12:19:09,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=53, Invalid=213, Unknown=6, NotChecked=0, Total=272 [2020-07-20 12:19:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-20 12:19:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-07-20 12:19:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-07-20 12:19:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2020-07-20 12:19:09,260 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 37 [2020-07-20 12:19:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:19:09,261 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2020-07-20 12:19:09,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 12:19:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2020-07-20 12:19:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 12:19:09,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:19:09,266 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:19:09,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:19:09,483 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:19:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:19:09,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1753881910, now seen corresponding path program 1 times [2020-07-20 12:19:09,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:19:09,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808470339] [2020-07-20 12:19:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:19:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:19:09,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-20 12:19:09,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:19:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 12:19:09,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:19:09,862 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:19:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 0 refuted. 31 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 12:19:27,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808470339] [2020-07-20 12:19:27,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:19:27,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 18 [2020-07-20 12:19:27,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36779318] [2020-07-20 12:19:27,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-20 12:19:27,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:19:27,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-20 12:19:27,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=242, Unknown=8, NotChecked=0, Total=306 [2020-07-20 12:19:27,022 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 18 states. [2020-07-20 12:20:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:20:34,528 INFO L93 Difference]: Finished difference Result 112 states and 148 transitions. [2020-07-20 12:20:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 12:20:34,531 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2020-07-20 12:20:34,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:20:34,534 INFO L225 Difference]: With dead ends: 112 [2020-07-20 12:20:34,535 INFO L226 Difference]: Without dead ends: 84 [2020-07-20 12:20:34,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 81 SyntacticMatches, 10 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=60, Invalid=274, Unknown=8, NotChecked=0, Total=342 [2020-07-20 12:20:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-20 12:20:34,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2020-07-20 12:20:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-20 12:20:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2020-07-20 12:20:34,557 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 52 [2020-07-20 12:20:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:20:34,558 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2020-07-20 12:20:34,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-20 12:20:34,558 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2020-07-20 12:20:34,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-20 12:20:34,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:20:34,561 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:20:34,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:20:34,762 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:20:34,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:20:34,763 INFO L82 PathProgramCache]: Analyzing trace with hash -722907185, now seen corresponding path program 1 times [2020-07-20 12:20:34,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:20:34,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337187728] [2020-07-20 12:20:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:20:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:20:34,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-20 12:20:34,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:20:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-20 12:20:35,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:20:35,328 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:21:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 38 proven. 0 refuted. 48 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 12:21:21,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337187728] [2020-07-20 12:21:21,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:21:21,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 25 [2020-07-20 12:21:21,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185596537] [2020-07-20 12:21:21,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-20 12:21:21,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:21:21,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-20 12:21:21,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=477, Unknown=20, NotChecked=0, Total=600 [2020-07-20 12:21:21,817 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand 25 states. [2020-07-20 12:21:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:21:54,778 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2020-07-20 12:21:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 12:21:54,779 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 72 [2020-07-20 12:21:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:21:54,780 INFO L225 Difference]: With dead ends: 106 [2020-07-20 12:21:54,780 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 12:21:54,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 113 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 52.2s TimeCoverageRelationStatistics Valid=107, Invalid=523, Unknown=20, NotChecked=0, Total=650 [2020-07-20 12:21:54,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 12:21:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 12:21:54,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 12:21:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 12:21:54,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2020-07-20 12:21:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:21:54,782 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 12:21:54,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-20 12:21:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 12:21:54,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 12:21:54,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:21:54,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 12:21:55,332 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:21:55,332 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:21:55,332 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:21:55,333 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:21:55,333 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 12:21:55,333 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:21:55,333 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:21:55,333 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 12:21:55,333 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 12:21:55,333 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point L31-2(lines 21 34) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point L27(lines 27 34) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point L25(lines 25 34) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 39) no Hoare annotation was computed. [2020-07-20 12:21:55,334 INFO L268 CegarLoopResult]: For program point L23(lines 23 34) no Hoare annotation was computed. [2020-07-20 12:21:55,335 INFO L268 CegarLoopResult]: For program point L21(lines 21 34) no Hoare annotation was computed. [2020-07-20 12:21:55,335 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 37) no Hoare annotation was computed. [2020-07-20 12:21:55,335 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 39) no Hoare annotation was computed. [2020-07-20 12:21:55,335 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= (mod (+ main_~l~0 1) 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 1) 4294967296)) [2020-07-20 12:21:55,336 INFO L264 CegarLoopResult]: At program point L36-1(lines 19 37) the Hoare annotation is: (= (mod (+ main_~l~0 1) 4294967296) (mod (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0 1) 4294967296)) [2020-07-20 12:21:55,336 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 39) the Hoare annotation is: true [2020-07-20 12:21:55,336 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-20 12:21:55,336 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-20 12:21:55,336 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-20 12:21:55,336 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-20 12:21:55,336 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-20 12:21:55,337 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-20 12:21:55,337 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-20 12:21:55,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:21:55 BoogieIcfgContainer [2020-07-20 12:21:55,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 12:21:55,358 INFO L168 Benchmark]: Toolchain (without parser) took 267264.97 ms. Allocated memory was 140.5 MB in the beginning and 275.3 MB in the end (delta: 134.7 MB). Free memory was 100.8 MB in the beginning and 217.3 MB in the end (delta: -116.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-07-20 12:21:55,359 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 12:21:55,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.96 ms. Allocated memory is still 140.5 MB. Free memory was 100.4 MB in the beginning and 90.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 12:21:55,361 INFO L168 Benchmark]: Boogie Preprocessor took 206.71 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 90.3 MB in the beginning and 182.4 MB in the end (delta: -92.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-20 12:21:55,362 INFO L168 Benchmark]: RCFGBuilder took 348.07 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 167.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-07-20 12:21:55,363 INFO L168 Benchmark]: TraceAbstraction took 266371.79 ms. Allocated memory was 204.5 MB in the beginning and 275.3 MB in the end (delta: 70.8 MB). Free memory was 166.6 MB in the beginning and 217.3 MB in the end (delta: -50.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-07-20 12:21:55,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.96 ms. Allocated memory is still 140.5 MB. Free memory was 100.4 MB in the beginning and 90.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 206.71 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 90.3 MB in the beginning and 182.4 MB in the end (delta: -92.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.07 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 167.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266371.79 ms. Allocated memory was 204.5 MB in the beginning and 275.3 MB in the end (delta: 70.8 MB). Free memory was 166.6 MB in the beginning and 217.3 MB in the end (delta: -50.7 MB). Peak memory consumption was 20.1 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: (l + 1) % 4294967296 == (i + j + k + v1 + v2 + v3 + v4 + 1) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 265.9s, OverallIterations: 6, TraceHistogramMax: 6, AutomataDifference: 184.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 85 SDslu, 556 SDs, 0 SdLazy, 1609 SolverSat, 76 SolverUnsat, 80 SolverUnknown, 0 SolverNotchecked, 162.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 472 GetRequests, 349 SyntacticMatches, 39 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 95.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 19 PreInvPairs, 32 NumberOfFragments, 39 HoareAnnotationTreeSize, 19 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 463 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 79.2s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 451 ConstructedInterpolants, 0 QuantifiedInterpolants, 272496 SizeOfPredicates, 12 NumberOfNonLiveVariables, 559 ConjunctsInSsa, 190 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 240/480 InterpolantCoveringCapability, 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...