/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:27:52,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:27:52,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:27:52,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:27:52,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:27:52,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:27:52,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:27:52,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:27:52,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:27:52,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:27:52,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:27:52,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:27:52,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:27:52,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:27:52,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:27:52,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:27:52,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:27:52,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:27:52,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:27:52,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:27:52,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:27:52,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:27:52,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:27:52,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:27:52,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:27:52,690 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 [2020-07-07 11:27:52,725 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:27:52,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:27:52,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:27:52,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:27:52,727 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:27:52,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:27:52,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:27:52,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:27:52,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:27:52,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:27:52,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:27:52,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:27:52,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:27:52,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:27:52,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:27:52,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:27:52,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:27:52,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:27:52,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:27:52,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:27:52,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:27:52,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:27:52,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:27:52,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:27:52,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:27:52,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:27:52,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:27:52,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:27:52,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:27:52,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:27:53,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:27:53,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:27:53,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:27:53,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:27:53,026 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:27:53,026 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-07-07 11:27:53,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd63795e1/e7b52442d72a42e7a02632b56ea5ff69/FLAGcf7256338 [2020-07-07 11:27:53,562 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:27:53,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-07-07 11:27:53,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd63795e1/e7b52442d72a42e7a02632b56ea5ff69/FLAGcf7256338 [2020-07-07 11:27:53,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd63795e1/e7b52442d72a42e7a02632b56ea5ff69 [2020-07-07 11:27:53,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:27:53,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:27:53,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:27:53,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:27:53,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:27:53,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:27:53" (1/1) ... [2020-07-07 11:27:53,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565a9679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:53, skipping insertion in model container [2020-07-07 11:27:53,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:27:53" (1/1) ... [2020-07-07 11:27:53,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:27:53,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:27:54,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:27:54,347 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:27:54,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:27:54,574 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:27:54,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54 WrapperNode [2020-07-07 11:27:54,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:27:54,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:27:54,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:27:54,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:27:54,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (1/1) ... [2020-07-07 11:27:54,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:27:54,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:27:54,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:27:54,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:27:54,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (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 [2020-07-07 11:27:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:27:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:27:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:27:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:27:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:27:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:27:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:27:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:27:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:27:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:27:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:27:55,956 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:27:55,957 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:27:55,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:27:55 BoogieIcfgContainer [2020-07-07 11:27:55,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:27:55,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:27:55,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:27:55,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:27:55,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:27:53" (1/3) ... [2020-07-07 11:27:55,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e03c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:27:55, skipping insertion in model container [2020-07-07 11:27:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:54" (2/3) ... [2020-07-07 11:27:55,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e03c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:27:55, skipping insertion in model container [2020-07-07 11:27:55,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:27:55" (3/3) ... [2020-07-07 11:27:55,987 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-07-07 11:27:55,998 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:27:56,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:27:56,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:27:56,067 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:27:56,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:27:56,069 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:27:56,069 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:27:56,069 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:27:56,070 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:27:56,070 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:27:56,070 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:27:56,097 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-07 11:27:56,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-07 11:27:56,108 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:56,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:56,109 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:56,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1917412719, now seen corresponding path program 1 times [2020-07-07 11:27:56,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:56,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849589664] [2020-07-07 11:27:56,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:27:56,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849589664] [2020-07-07 11:27:56,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:27:56,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:27:56,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186433204] [2020-07-07 11:27:56,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:27:56,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:56,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:27:56,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:27:56,505 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-07 11:27:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:27:58,510 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-07-07 11:27:58,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:27:58,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-07-07 11:27:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:27:58,532 INFO L225 Difference]: With dead ends: 730 [2020-07-07 11:27:58,532 INFO L226 Difference]: Without dead ends: 447 [2020-07-07 11:27:58,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:27:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-07 11:27:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-07-07 11:27:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-07-07 11:27:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-07-07 11:27:58,623 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 32 [2020-07-07 11:27:58,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:27:58,624 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-07-07 11:27:58,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:27:58,624 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-07-07 11:27:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-07 11:27:58,629 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:58,629 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:58,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:27:58,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:58,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:58,630 INFO L82 PathProgramCache]: Analyzing trace with hash -818504711, now seen corresponding path program 1 times [2020-07-07 11:27:58,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:58,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904575293] [2020-07-07 11:27:58,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:27:58,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904575293] [2020-07-07 11:27:58,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:27:58,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:27:58,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768540593] [2020-07-07 11:27:58,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:27:58,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:58,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:27:58,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:27:58,927 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 9 states. [2020-07-07 11:28:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:00,366 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-07-07 11:28:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:28:00,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 105 [2020-07-07 11:28:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:00,371 INFO L225 Difference]: With dead ends: 1041 [2020-07-07 11:28:00,372 INFO L226 Difference]: Without dead ends: 606 [2020-07-07 11:28:00,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:28:00,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-07-07 11:28:00,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-07-07 11:28:00,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-07-07 11:28:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-07-07 11:28:00,422 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 105 [2020-07-07 11:28:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:00,423 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-07-07 11:28:00,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:28:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-07-07 11:28:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-07 11:28:00,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:00,428 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:00,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:28:00,428 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:00,429 INFO L82 PathProgramCache]: Analyzing trace with hash 866657741, now seen corresponding path program 1 times [2020-07-07 11:28:00,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:00,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424627001] [2020-07-07 11:28:00,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:00,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424627001] [2020-07-07 11:28:00,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289920713] [2020-07-07 11:28:00,674 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:00,762 INFO L264 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:00,771 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:00,845 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:00,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:28:00,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2020-07-07 11:28:00,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108784762] [2020-07-07 11:28:00,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:28:00,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:00,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:28:00,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:28:00,848 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 3 states. [2020-07-07 11:28:01,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:01,534 INFO L93 Difference]: Finished difference Result 1756 states and 2510 transitions. [2020-07-07 11:28:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:28:01,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-07 11:28:01,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:01,545 INFO L225 Difference]: With dead ends: 1756 [2020-07-07 11:28:01,545 INFO L226 Difference]: Without dead ends: 1170 [2020-07-07 11:28:01,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:28:01,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-07-07 11:28:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1023. [2020-07-07 11:28:01,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-07-07 11:28:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1444 transitions. [2020-07-07 11:28:01,592 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1444 transitions. Word has length 111 [2020-07-07 11:28:01,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:01,593 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1444 transitions. [2020-07-07 11:28:01,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:28:01,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1444 transitions. [2020-07-07 11:28:01,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-07 11:28:01,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:01,601 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:01,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:28:01,815 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash -693167266, now seen corresponding path program 1 times [2020-07-07 11:28:01,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:01,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115744663] [2020-07-07 11:28:01,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:02,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115744663] [2020-07-07 11:28:02,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:28:02,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:28:02,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447559384] [2020-07-07 11:28:02,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:28:02,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:02,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:28:02,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:28:02,150 INFO L87 Difference]: Start difference. First operand 1023 states and 1444 transitions. Second operand 9 states. [2020-07-07 11:28:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:04,067 INFO L93 Difference]: Finished difference Result 2370 states and 3400 transitions. [2020-07-07 11:28:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:28:04,068 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 144 [2020-07-07 11:28:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:04,081 INFO L225 Difference]: With dead ends: 2370 [2020-07-07 11:28:04,081 INFO L226 Difference]: Without dead ends: 1353 [2020-07-07 11:28:04,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:28:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2020-07-07 11:28:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1045. [2020-07-07 11:28:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-07-07 11:28:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1316 transitions. [2020-07-07 11:28:04,137 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1316 transitions. Word has length 144 [2020-07-07 11:28:04,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:04,138 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1316 transitions. [2020-07-07 11:28:04,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:28:04,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1316 transitions. [2020-07-07 11:28:04,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-07 11:28:04,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:04,144 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:04,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:28:04,144 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:04,144 INFO L82 PathProgramCache]: Analyzing trace with hash 916562273, now seen corresponding path program 1 times [2020-07-07 11:28:04,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:04,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933715469] [2020-07-07 11:28:04,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:04,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933715469] [2020-07-07 11:28:04,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:28:04,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:28:04,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54444697] [2020-07-07 11:28:04,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:28:04,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:04,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:28:04,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:04,466 INFO L87 Difference]: Start difference. First operand 1045 states and 1316 transitions. Second operand 7 states. [2020-07-07 11:28:05,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:05,714 INFO L93 Difference]: Finished difference Result 2261 states and 2836 transitions. [2020-07-07 11:28:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:28:05,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-07-07 11:28:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:05,723 INFO L225 Difference]: With dead ends: 2261 [2020-07-07 11:28:05,723 INFO L226 Difference]: Without dead ends: 1222 [2020-07-07 11:28:05,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:28:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-07-07 11:28:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1047. [2020-07-07 11:28:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2020-07-07 11:28:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1272 transitions. [2020-07-07 11:28:05,765 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1272 transitions. Word has length 149 [2020-07-07 11:28:05,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:05,766 INFO L479 AbstractCegarLoop]: Abstraction has 1047 states and 1272 transitions. [2020-07-07 11:28:05,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:28:05,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1272 transitions. [2020-07-07 11:28:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-07 11:28:05,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:05,770 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:05,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:28:05,770 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:05,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1939245633, now seen corresponding path program 1 times [2020-07-07 11:28:05,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:05,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174798043] [2020-07-07 11:28:05,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-07 11:28:06,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174798043] [2020-07-07 11:28:06,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772338435] [2020-07-07 11:28:06,130 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:06,227 INFO L264 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:06,246 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:06,278 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:28:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-07 11:28:06,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:28:06,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:28:06,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435764780] [2020-07-07 11:28:06,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:28:06,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:06,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:28:06,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:06,430 INFO L87 Difference]: Start difference. First operand 1047 states and 1272 transitions. Second operand 3 states. [2020-07-07 11:28:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:07,295 INFO L93 Difference]: Finished difference Result 2672 states and 3359 transitions. [2020-07-07 11:28:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:28:07,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-07-07 11:28:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:07,305 INFO L225 Difference]: With dead ends: 2672 [2020-07-07 11:28:07,306 INFO L226 Difference]: Without dead ends: 1774 [2020-07-07 11:28:07,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:28:07,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2020-07-07 11:28:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1486. [2020-07-07 11:28:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-07-07 11:28:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1809 transitions. [2020-07-07 11:28:07,352 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1809 transitions. Word has length 214 [2020-07-07 11:28:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:07,352 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 1809 transitions. [2020-07-07 11:28:07,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:28:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1809 transitions. [2020-07-07 11:28:07,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-07-07 11:28:07,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:07,357 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:07,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:07,571 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:07,572 INFO L82 PathProgramCache]: Analyzing trace with hash -896858018, now seen corresponding path program 1 times [2020-07-07 11:28:07,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:07,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715978457] [2020-07-07 11:28:07,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 54 proven. 65 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:28:08,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715978457] [2020-07-07 11:28:08,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703097306] [2020-07-07 11:28:08,588 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:08,704 INFO L264 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:08,709 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:08,760 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-07 11:28:08,761 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:28:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:08,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:28:08,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 16 [2020-07-07 11:28:08,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912087281] [2020-07-07 11:28:08,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-07 11:28:08,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:08,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-07 11:28:08,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:28:08,864 INFO L87 Difference]: Start difference. First operand 1486 states and 1809 transitions. Second operand 16 states. [2020-07-07 11:28:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:15,392 INFO L93 Difference]: Finished difference Result 4379 states and 5876 transitions. [2020-07-07 11:28:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-07 11:28:15,394 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 219 [2020-07-07 11:28:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:15,411 INFO L225 Difference]: With dead ends: 4379 [2020-07-07 11:28:15,411 INFO L226 Difference]: Without dead ends: 3042 [2020-07-07 11:28:15,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=610, Invalid=2360, Unknown=0, NotChecked=0, Total=2970 [2020-07-07 11:28:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2020-07-07 11:28:15,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 2833. [2020-07-07 11:28:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2020-07-07 11:28:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3475 transitions. [2020-07-07 11:28:15,508 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3475 transitions. Word has length 219 [2020-07-07 11:28:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:15,509 INFO L479 AbstractCegarLoop]: Abstraction has 2833 states and 3475 transitions. [2020-07-07 11:28:15,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-07 11:28:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3475 transitions. [2020-07-07 11:28:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-07 11:28:15,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:15,514 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:28:15,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:15,729 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:15,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:15,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1620095037, now seen corresponding path program 1 times [2020-07-07 11:28:15,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:15,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715699822] [2020-07-07 11:28:15,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 54 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:28:16,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715699822] [2020-07-07 11:28:16,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700979010] [2020-07-07 11:28:16,195 INFO L94 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 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:16,292 INFO L264 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:28:16,297 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:28:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:16,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:28:16,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 14 [2020-07-07 11:28:16,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696641539] [2020-07-07 11:28:16,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 11:28:16,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:16,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 11:28:16,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:28:16,422 INFO L87 Difference]: Start difference. First operand 2833 states and 3475 transitions. Second operand 14 states. [2020-07-07 11:28:20,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:28:20,745 INFO L93 Difference]: Finished difference Result 7993 states and 9960 transitions. [2020-07-07 11:28:20,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-07 11:28:20,746 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-07-07 11:28:20,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:28:20,747 INFO L225 Difference]: With dead ends: 7993 [2020-07-07 11:28:20,747 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:28:20,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=340, Invalid=1142, Unknown=0, NotChecked=0, Total=1482 [2020-07-07 11:28:20,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:28:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:28:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:28:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:28:20,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 228 [2020-07-07 11:28:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:28:20,764 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:28:20,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 11:28:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:28:20,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:28:20,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:28:20,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:28:21,419 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 146 [2020-07-07 11:28:21,547 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 146 [2020-07-07 11:28:22,509 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 59 [2020-07-07 11:28:23,031 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 57 [2020-07-07 11:28:23,531 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 57 [2020-07-07 11:28:23,535 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:28:23,535 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-07 11:28:23,536 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:28:23,536 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-07 11:28:23,536 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,537 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,537 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,537 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,537 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,537 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-07 11:28:23,538 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,539 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-07 11:28:23,540 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-07 11:28:23,541 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-07-07 11:28:23,542 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-07 11:28:23,542 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,542 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,542 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,542 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,542 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-07 11:28:23,543 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,544 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-07 11:28:23,545 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,546 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-07 11:28:23,547 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,548 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-07 11:28:23,549 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-07 11:28:23,550 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,551 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-07 11:28:23,552 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,553 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-07 11:28:23,554 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-07 11:28:23,555 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-07 11:28:23,556 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (not (= 0 ~a12~0))) (.cse6 (not (= 14 ~a4~0))) (.cse0 (not (<= |old(~a1~0)| 23))) (.cse1 (not (<= 1 |old(~a10~0)|))) (.cse4 (not (<= |old(~a19~0)| 8))) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse3 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= 9 |old(~a19~0)|)) (= 2 |old(~a10~0)|) .cse3) (or (not (<= 23 |old(~a1~0)|)) .cse4 .cse5 .cse6 .cse3) (or .cse1 .cse5 .cse6 .cse2 .cse3 (forall ((v_~a1~0_346 Int)) (let ((.cse7 (mod v_~a1~0_346 299890))) (or (not (< v_~a1~0_346 0)) (= 0 .cse7) (not (<= (+ .cse7 218) |old(~a1~0)|)))))) (or .cse0 .cse4 (= 8 |old(~a19~0)|) .cse3) (or .cse1 .cse4 .cse2 .cse3))) [2020-07-07 11:28:23,556 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-07 11:28:23,556 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-07 11:28:23,556 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-07 11:28:23,556 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,556 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,556 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-07 11:28:23,557 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-07 11:28:23,558 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-07 11:28:23,559 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-07 11:28:23,560 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-07 11:28:23,561 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-07 11:28:23,562 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-07 11:28:23,563 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:28:23,563 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-07 11:28:23,563 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:28:23,563 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:28:23,563 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-07 11:28:23,563 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-07 11:28:23,564 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 1 ~a10~0) (not (= 2 ~a10~0))) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (and .cse0 (<= ~a1~0 23) (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (exists ((v_~a1~0_346 Int)) (let ((.cse1 (mod v_~a1~0_346 299890))) (and (< v_~a1~0_346 0) (<= (+ .cse1 218) ~a1~0) (not (= 0 .cse1)))))) (and (<= ~a19~0 8) (<= 23 ~a1~0)) (and (<= ~a10~0 0) (not (= 8 ~a19~0))))) [2020-07-07 11:28:23,564 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-07 11:28:23,564 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-07 11:28:23,564 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 1 ~a10~0) (not (= 2 ~a10~0))) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (and .cse0 (<= ~a1~0 23) (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (exists ((v_~a1~0_346 Int)) (let ((.cse1 (mod v_~a1~0_346 299890))) (and (< v_~a1~0_346 0) (<= (+ .cse1 218) ~a1~0) (not (= 0 .cse1)))))) (and (<= ~a19~0 8) (<= 23 ~a1~0)) (and (<= ~a10~0 0) (not (= 8 ~a19~0))))) [2020-07-07 11:28:23,564 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-07 11:28:23,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:28:23 BoogieIcfgContainer [2020-07-07 11:28:23,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:28:23,589 INFO L168 Benchmark]: Toolchain (without parser) took 29720.85 ms. Allocated memory was 147.3 MB in the beginning and 544.7 MB in the end (delta: 397.4 MB). Free memory was 103.4 MB in the beginning and 267.9 MB in the end (delta: -164.5 MB). Peak memory consumption was 410.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:23,590 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 11:28:23,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.81 ms. Allocated memory was 147.3 MB in the beginning and 208.1 MB in the end (delta: 60.8 MB). Free memory was 103.2 MB in the beginning and 175.1 MB in the end (delta: -71.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:23,591 INFO L168 Benchmark]: Boogie Preprocessor took 95.29 ms. Allocated memory is still 208.1 MB. Free memory was 175.1 MB in the beginning and 170.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:23,592 INFO L168 Benchmark]: RCFGBuilder took 1296.33 ms. Allocated memory was 208.1 MB in the beginning and 237.5 MB in the end (delta: 29.4 MB). Free memory was 170.3 MB in the beginning and 178.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:23,593 INFO L168 Benchmark]: TraceAbstraction took 27616.41 ms. Allocated memory was 237.5 MB in the beginning and 544.7 MB in the end (delta: 307.2 MB). Free memory was 178.6 MB in the beginning and 267.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 395.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:28:23,596 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.81 ms. Allocated memory was 147.3 MB in the beginning and 208.1 MB in the end (delta: 60.8 MB). Free memory was 103.2 MB in the beginning and 175.1 MB in the end (delta: -71.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.29 ms. Allocated memory is still 208.1 MB. Free memory was 175.1 MB in the beginning and 170.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1296.33 ms. Allocated memory was 208.1 MB in the beginning and 237.5 MB in the end (delta: 29.4 MB). Free memory was 170.3 MB in the beginning and 178.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27616.41 ms. Allocated memory was 237.5 MB in the beginning and 544.7 MB in the end (delta: 307.2 MB). Free memory was 178.6 MB in the beginning and 267.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 395.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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: 582]: Loop Invariant [2020-07-07 11:28:23,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] [2020-07-07 11:28:23,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_346,QUANTIFIED] Derived loop invariant: ((((((((((!(23 <= \old(a1)) || (1 <= a10 && !(2 == a10))) || !(\old(a1) <= 23)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(0 == a12)) || !(14 == a4)) || ((a19 <= 9 && a1 <= 23) && 2 <= a10)) || !(\old(a19) <= 9)) || (a19 <= 9 && (\exists v_~a1~0_346 : int :: (v_~a1~0_346 < 0 && v_~a1~0_346 % 299890 + 218 <= a1) && !(0 == v_~a1~0_346 % 299890)))) || (a19 <= 8 && 23 <= a1)) || (a10 <= 0 && !(8 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.9s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 19.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 625 SDtfs, 5607 SDslu, 476 SDs, 0 SdLazy, 11352 SolverSat, 2735 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 963 GetRequests, 821 SyntacticMatches, 3 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 1147 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 99 PreInvPairs, 175 NumberOfFragments, 421 HoareAnnotationTreeSize, 99 FomulaSimplifications, 41755 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9627 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1974 NumberOfCodeBlocks, 1974 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1962 ConstructedInterpolants, 28 QuantifiedInterpolants, 1597745 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1433 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 714/863 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...