/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gsv2008.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:05:11,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:05:11,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:05:12,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:05:12,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:05:12,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:05:12,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:05:12,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:05:12,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:05:12,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:05:12,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:05:12,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:05:12,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:05:12,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:05:12,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:05:12,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:05:12,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:05:12,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:05:12,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:05:12,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:05:12,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:05:12,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:05:12,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:05:12,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:05:12,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 19:05:12,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:05:12,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:05:12,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:05:12,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 19:05:12,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:05:12,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:05:12,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:05:12,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:05:12,127 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:05:12,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:05:12,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:05:12,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:05:12,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:05:12,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:05:12,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:05:12,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:05:12,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:05:12,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:05:12,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:05:12,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:05:12,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:05:12,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:05:12,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:05:12,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:05:12,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:05:12,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:05:12,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:05:12,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:05:12,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:05:12,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:05:12,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:05:12,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:05:12,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:05:12,134 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 19:05:12,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:05:12,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:05:12,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:05:12,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:05:12,488 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:05:12,488 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.i [2020-08-21 19:05:12,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aed2b291b/c5755850a31948aa927447bf1c9a0373/FLAG0b01e2db8 [2020-08-21 19:05:13,039 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:05:13,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/gsv2008.i [2020-08-21 19:05:13,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aed2b291b/c5755850a31948aa927447bf1c9a0373/FLAG0b01e2db8 [2020-08-21 19:05:13,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aed2b291b/c5755850a31948aa927447bf1c9a0373 [2020-08-21 19:05:13,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:05:13,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:05:13,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:05:13,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:05:13,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:05:13,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f32ca57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13, skipping insertion in model container [2020-08-21 19:05:13,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:05:13,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:05:13,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:05:13,706 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:05:13,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:05:13,738 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:05:13,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13 WrapperNode [2020-08-21 19:05:13,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:05:13,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:05:13,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:05:13,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:05:13,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... [2020-08-21 19:05:13,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:05:13,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:05:13,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:05:13,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:05:13,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:05:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:05:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:05:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 19:05:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 19:05:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:05:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:05:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 19:05:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 19:05:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 19:05:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:05:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:05:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:05:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:05:14,096 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:05:14,096 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 19:05:14,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:05:14 BoogieIcfgContainer [2020-08-21 19:05:14,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:05:14,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:05:14,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:05:14,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:05:14,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:05:13" (1/3) ... [2020-08-21 19:05:14,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d92b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:05:14, skipping insertion in model container [2020-08-21 19:05:14,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:13" (2/3) ... [2020-08-21 19:05:14,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d92b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:05:14, skipping insertion in model container [2020-08-21 19:05:14,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:05:14" (3/3) ... [2020-08-21 19:05:14,108 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.i [2020-08-21 19:05:14,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:05:14,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:05:14,140 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:05:14,164 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:05:14,164 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:05:14,164 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:05:14,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:05:14,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:05:14,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:05:14,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:05:14,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:05:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-08-21 19:05:14,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-21 19:05:14,188 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:14,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:14,189 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:14,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1608903343, now seen corresponding path program 1 times [2020-08-21 19:05:14,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:14,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456418986] [2020-08-21 19:05:14,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:14,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456418986] [2020-08-21 19:05:14,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:05:14,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 19:05:14,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20832231] [2020-08-21 19:05:14,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 19:05:14,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:14,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 19:05:14,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 19:05:14,374 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-08-21 19:05:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:14,409 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2020-08-21 19:05:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 19:05:14,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-08-21 19:05:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:14,419 INFO L225 Difference]: With dead ends: 34 [2020-08-21 19:05:14,419 INFO L226 Difference]: Without dead ends: 13 [2020-08-21 19:05:14,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 19:05:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-08-21 19:05:14,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-08-21 19:05:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-08-21 19:05:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-08-21 19:05:14,467 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-08-21 19:05:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:14,468 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-08-21 19:05:14,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 19:05:14,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-08-21 19:05:14,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 19:05:14,470 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:14,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:14,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:05:14,471 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:14,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:14,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1628066164, now seen corresponding path program 1 times [2020-08-21 19:05:14,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:14,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176666951] [2020-08-21 19:05:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:14,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:14,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176666951] [2020-08-21 19:05:14,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:05:14,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:05:14,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284867849] [2020-08-21 19:05:14,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:05:14,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:14,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:05:14,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:05:14,593 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2020-08-21 19:05:14,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:14,697 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-08-21 19:05:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:05:14,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-08-21 19:05:14,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:14,699 INFO L225 Difference]: With dead ends: 19 [2020-08-21 19:05:14,699 INFO L226 Difference]: Without dead ends: 14 [2020-08-21 19:05:14,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:05:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-08-21 19:05:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-08-21 19:05:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-08-21 19:05:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-08-21 19:05:14,706 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-08-21 19:05:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:14,706 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-08-21 19:05:14,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:05:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-08-21 19:05:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-21 19:05:14,707 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:14,708 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:14,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:05:14,708 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:14,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:14,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1105094223, now seen corresponding path program 2 times [2020-08-21 19:05:14,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:14,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014935917] [2020-08-21 19:05:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:14,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:14,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014935917] [2020-08-21 19:05:14,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:05:14,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 19:05:14,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416902007] [2020-08-21 19:05:14,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 19:05:14,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:14,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 19:05:14,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:05:14,826 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2020-08-21 19:05:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:14,902 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-08-21 19:05:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:05:14,903 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-08-21 19:05:14,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:14,904 INFO L225 Difference]: With dead ends: 20 [2020-08-21 19:05:14,904 INFO L226 Difference]: Without dead ends: 15 [2020-08-21 19:05:14,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:05:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-21 19:05:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-21 19:05:14,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-21 19:05:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-21 19:05:14,910 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-08-21 19:05:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:14,910 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-21 19:05:14,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 19:05:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-21 19:05:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 19:05:14,911 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:14,912 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:14,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:05:14,912 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:14,913 INFO L82 PathProgramCache]: Analyzing trace with hash -66279700, now seen corresponding path program 3 times [2020-08-21 19:05:14,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:14,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679489058] [2020-08-21 19:05:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:15,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679489058] [2020-08-21 19:05:15,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:05:15,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 19:05:15,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56216811] [2020-08-21 19:05:15,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 19:05:15,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:15,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 19:05:15,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:05:15,050 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 9 states. [2020-08-21 19:05:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:15,160 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-08-21 19:05:15,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:05:15,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-08-21 19:05:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:15,162 INFO L225 Difference]: With dead ends: 21 [2020-08-21 19:05:15,163 INFO L226 Difference]: Without dead ends: 16 [2020-08-21 19:05:15,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:05:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-21 19:05:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-21 19:05:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-21 19:05:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-21 19:05:15,174 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-08-21 19:05:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:15,176 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-21 19:05:15,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 19:05:15,176 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-21 19:05:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 19:05:15,177 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:15,178 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:15,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 19:05:15,178 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:15,179 INFO L82 PathProgramCache]: Analyzing trace with hash -2019132945, now seen corresponding path program 4 times [2020-08-21 19:05:15,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:15,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750759437] [2020-08-21 19:05:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:15,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750759437] [2020-08-21 19:05:15,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:05:15,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 19:05:15,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103432637] [2020-08-21 19:05:15,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 19:05:15,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:15,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 19:05:15,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:05:15,351 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 10 states. [2020-08-21 19:05:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:15,432 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-08-21 19:05:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 19:05:15,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-08-21 19:05:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:15,433 INFO L225 Difference]: With dead ends: 22 [2020-08-21 19:05:15,434 INFO L226 Difference]: Without dead ends: 17 [2020-08-21 19:05:15,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:05:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-08-21 19:05:15,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-08-21 19:05:15,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-08-21 19:05:15,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-08-21 19:05:15,439 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-08-21 19:05:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:15,440 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-08-21 19:05:15,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 19:05:15,440 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-08-21 19:05:15,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 19:05:15,441 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:15,441 INFO L422 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:15,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 19:05:15,441 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:15,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1866925900, now seen corresponding path program 5 times [2020-08-21 19:05:15,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:15,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881031135] [2020-08-21 19:05:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:15,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881031135] [2020-08-21 19:05:15,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:05:15,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 19:05:15,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118705814] [2020-08-21 19:05:15,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 19:05:15,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:15,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 19:05:15,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:05:15,570 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 11 states. [2020-08-21 19:05:15,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:15,666 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-08-21 19:05:15,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 19:05:15,666 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2020-08-21 19:05:15,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:15,667 INFO L225 Difference]: With dead ends: 23 [2020-08-21 19:05:15,667 INFO L226 Difference]: Without dead ends: 18 [2020-08-21 19:05:15,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-08-21 19:05:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-08-21 19:05:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-08-21 19:05:15,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-08-21 19:05:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-08-21 19:05:15,673 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2020-08-21 19:05:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:15,673 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-08-21 19:05:15,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 19:05:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-08-21 19:05:15,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 19:05:15,674 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:15,674 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:15,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 19:05:15,675 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:15,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:15,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2075665807, now seen corresponding path program 6 times [2020-08-21 19:05:15,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:15,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893144414] [2020-08-21 19:05:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-21 19:05:15,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893144414] [2020-08-21 19:05:15,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:05:15,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:05:15,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557128552] [2020-08-21 19:05:15,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:05:15,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:15,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:05:15,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:05:15,730 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2020-08-21 19:05:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:15,763 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-08-21 19:05:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:05:15,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 19:05:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:15,764 INFO L225 Difference]: With dead ends: 18 [2020-08-21 19:05:15,764 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:05:15,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:05:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:05:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:05:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:05:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:05:15,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-08-21 19:05:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:15,766 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:05:15,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:05:15,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:05:15,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:05:15,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 19:05:15,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:05:15,851 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-21 19:05:15,851 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:05:15,852 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:05:15,852 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 19:05:15,852 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:05:15,852 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:05:15,852 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-21 19:05:15,853 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-21 19:05:15,854 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-21 19:05:15,854 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-21 19:05:15,854 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 24) the Hoare annotation is: true [2020-08-21 19:05:15,854 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2020-08-21 19:05:15,854 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-21 19:05:15,855 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-08-21 19:05:15,855 INFO L264 CegarLoopResult]: At program point L18-2(lines 18 21) the Hoare annotation is: (or (<= (+ main_~x~0 50) 0) (<= (+ main_~x~0 2) main_~y~0)) [2020-08-21 19:05:15,855 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 21) the Hoare annotation is: (or (and (<= 13 main_~y~0) (<= (+ main_~x~0 65) (* 5 main_~y~0))) (and (<= 2 main_~y~0) (<= (+ main_~x~0 2) main_~y~0))) [2020-08-21 19:05:15,856 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2020-08-21 19:05:15,856 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-21 19:05:15,856 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-21 19:05:15,856 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-21 19:05:15,857 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-21 19:05:15,857 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-21 19:05:15,858 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-21 19:05:15,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:05:15 BoogieIcfgContainer [2020-08-21 19:05:15,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:05:15,888 INFO L168 Benchmark]: Toolchain (without parser) took 2413.23 ms. Allocated memory was 138.9 MB in the beginning and 232.8 MB in the end (delta: 93.8 MB). Free memory was 101.1 MB in the beginning and 137.4 MB in the end (delta: -36.3 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:15,894 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 19:05:15,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.22 ms. Allocated memory is still 138.9 MB. Free memory was 100.9 MB in the beginning and 91.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:15,897 INFO L168 Benchmark]: Boogie Preprocessor took 108.16 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 91.1 MB in the beginning and 179.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:15,897 INFO L168 Benchmark]: RCFGBuilder took 251.55 ms. Allocated memory is still 200.8 MB. Free memory was 179.2 MB in the beginning and 166.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:15,898 INFO L168 Benchmark]: TraceAbstraction took 1782.53 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 166.3 MB in the beginning and 137.4 MB in the end (delta: 28.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:15,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.22 ms. Allocated memory is still 138.9 MB. Free memory was 100.9 MB in the beginning and 91.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.16 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 91.1 MB in the beginning and 179.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.55 ms. Allocated memory is still 200.8 MB. Free memory was 179.2 MB in the beginning and 166.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1782.53 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 166.3 MB in the beginning and 137.4 MB in the end (delta: 28.9 MB). Peak memory consumption was 60.9 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: 18]: Loop Invariant Derived loop invariant: x + 50 <= 0 || x + 2 <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 14 SDslu, 300 SDs, 0 SdLazy, 298 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 25 NumberOfFragments, 37 HoareAnnotationTreeSize, 13 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3623 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 21/56 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...