/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:43,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:43,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:43,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:43,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:43,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:43,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:43,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:43,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:43,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:43,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:43,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:43,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:43,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:43,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:43,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:43,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:44,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:44,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:44,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:44,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:44,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:44,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:44,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:44,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:44,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:44,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:44,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:44,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:44,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:44,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:44,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:44,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:44,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:44,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:44,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:44,052 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:44,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:44,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:44,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:44,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:44,081 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:44,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:44,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:44,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:44,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:44,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:44,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:44,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:44,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:44,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:44,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:44,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:44,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:44,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:44,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:44,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:44,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:44,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:44,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:44,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:44,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:44,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:44,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:44,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:44,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:44,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:44,529 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:44,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-12-22 06:56:44,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bc52869/5a598c0841764827b79faf096cd5cc39/FLAG07492db71 [2020-12-22 06:56:45,390 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:45,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-12-22 06:56:45,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bc52869/5a598c0841764827b79faf096cd5cc39/FLAG07492db71 [2020-12-22 06:56:45,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bc52869/5a598c0841764827b79faf096cd5cc39 [2020-12-22 06:56:45,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:45,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:45,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:45,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:45,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:45,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:45" (1/1) ... [2020-12-22 06:56:45,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1302f112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:45, skipping insertion in model container [2020-12-22 06:56:45,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:45" (1/1) ... [2020-12-22 06:56:45,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:45,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:45,881 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1281,1294] [2020-12-22 06:56:46,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:46,079 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:46,103 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1281,1294] [2020-12-22 06:56:46,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:46,220 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:46,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46 WrapperNode [2020-12-22 06:56:46,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:46,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:46,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:46,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:46,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:46,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:46,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:46,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:46,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (1/1) ... [2020-12-22 06:56:46,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:46,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:46,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:46,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:46,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (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 [2020-12-22 06:56:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:46,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:47,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:47,635 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2020-12-22 06:56:47,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:47 BoogieIcfgContainer [2020-12-22 06:56:47,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:47,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:47,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:47,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:47,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:45" (1/3) ... [2020-12-22 06:56:47,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa3562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:47, skipping insertion in model container [2020-12-22 06:56:47,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:46" (2/3) ... [2020-12-22 06:56:47,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa3562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:47, skipping insertion in model container [2020-12-22 06:56:47,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:47" (3/3) ... [2020-12-22 06:56:47,646 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-12-22 06:56:47,653 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:47,659 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:47,678 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:47,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:47,707 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:47,708 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:47,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:47,708 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:47,708 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:47,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:47,709 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-12-22 06:56:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:47,735 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:47,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:47,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:47,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1641629540, now seen corresponding path program 1 times [2020-12-22 06:56:47,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:47,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906547065] [2020-12-22 06:56:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:48,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906547065] [2020-12-22 06:56:48,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:48,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:48,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336635934] [2020-12-22 06:56:48,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:48,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:48,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:48,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:48,175 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2020-12-22 06:56:48,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:48,211 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2020-12-22 06:56:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:48,213 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:48,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:48,225 INFO L225 Difference]: With dead ends: 228 [2020-12-22 06:56:48,225 INFO L226 Difference]: Without dead ends: 113 [2020-12-22 06:56:48,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-22 06:56:48,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-12-22 06:56:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-12-22 06:56:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-12-22 06:56:48,286 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-12-22 06:56:48,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:48,286 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-12-22 06:56:48,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-12-22 06:56:48,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:48,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:48,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:48,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:48,289 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:48,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:48,289 INFO L82 PathProgramCache]: Analyzing trace with hash 594872643, now seen corresponding path program 1 times [2020-12-22 06:56:48,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:48,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323486250] [2020-12-22 06:56:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:48,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323486250] [2020-12-22 06:56:48,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:48,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:48,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709016372] [2020-12-22 06:56:48,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:48,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:48,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:48,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:48,400 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2020-12-22 06:56:48,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:48,414 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-12-22 06:56:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:48,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:48,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:48,416 INFO L225 Difference]: With dead ends: 113 [2020-12-22 06:56:48,416 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 06:56:48,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:48,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 06:56:48,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 06:56:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 06:56:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-12-22 06:56:48,424 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-12-22 06:56:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:48,425 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-12-22 06:56:48,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-12-22 06:56:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:48,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:48,426 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] [2020-12-22 06:56:48,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:48,427 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:48,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:48,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2020-12-22 06:56:48,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:48,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219053787] [2020-12-22 06:56:48,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:48,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219053787] [2020-12-22 06:56:48,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:48,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:48,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014442735] [2020-12-22 06:56:48,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:48,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:48,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:48,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:48,545 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2020-12-22 06:56:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:48,559 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-12-22 06:56:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:48,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 06:56:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:48,565 INFO L225 Difference]: With dead ends: 88 [2020-12-22 06:56:48,565 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 06:56:48,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 06:56:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 06:56:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 06:56:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-12-22 06:56:48,582 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-12-22 06:56:48,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:48,583 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-12-22 06:56:48,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-12-22 06:56:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:48,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:48,586 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] [2020-12-22 06:56:48,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:48,586 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:48,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:48,587 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2020-12-22 06:56:48,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:48,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534049419] [2020-12-22 06:56:48,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:48,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534049419] [2020-12-22 06:56:48,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:48,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:48,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460487612] [2020-12-22 06:56:48,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:48,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:48,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:48,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:48,692 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-12-22 06:56:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:48,723 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-12-22 06:56:48,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:48,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:48,725 INFO L225 Difference]: With dead ends: 109 [2020-12-22 06:56:48,725 INFO L226 Difference]: Without dead ends: 68 [2020-12-22 06:56:48,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-22 06:56:48,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-12-22 06:56:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 06:56:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-12-22 06:56:48,735 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-12-22 06:56:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:48,736 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-12-22 06:56:48,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-12-22 06:56:48,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:56:48,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:48,737 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] [2020-12-22 06:56:48,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:48,737 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:48,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:48,738 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2020-12-22 06:56:48,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:48,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182126964] [2020-12-22 06:56:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:48,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182126964] [2020-12-22 06:56:48,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:48,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:48,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480658047] [2020-12-22 06:56:48,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:48,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:48,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:48,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:48,822 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-12-22 06:56:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:48,894 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-12-22 06:56:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:48,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-22 06:56:48,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:48,896 INFO L225 Difference]: With dead ends: 175 [2020-12-22 06:56:48,896 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 06:56:48,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:48,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 06:56:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-12-22 06:56:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 06:56:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-12-22 06:56:48,907 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-12-22 06:56:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:48,907 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-12-22 06:56:48,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-12-22 06:56:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:56:48,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:48,909 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] [2020-12-22 06:56:48,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:48,909 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:48,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2020-12-22 06:56:48,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:48,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415161036] [2020-12-22 06:56:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:48,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415161036] [2020-12-22 06:56:48,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:48,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:48,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84271427] [2020-12-22 06:56:48,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:48,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:48,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:48,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:48,998 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 6 states. [2020-12-22 06:56:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:49,265 INFO L93 Difference]: Finished difference Result 478 states and 677 transitions. [2020-12-22 06:56:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 06:56:49,265 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-12-22 06:56:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:49,269 INFO L225 Difference]: With dead ends: 478 [2020-12-22 06:56:49,269 INFO L226 Difference]: Without dead ends: 412 [2020-12-22 06:56:49,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-12-22 06:56:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-12-22 06:56:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 130. [2020-12-22 06:56:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-22 06:56:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 179 transitions. [2020-12-22 06:56:49,305 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 179 transitions. Word has length 30 [2020-12-22 06:56:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:49,306 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 179 transitions. [2020-12-22 06:56:49,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:49,306 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 179 transitions. [2020-12-22 06:56:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:49,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:49,309 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] [2020-12-22 06:56:49,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:56:49,310 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:49,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:49,311 INFO L82 PathProgramCache]: Analyzing trace with hash -150608481, now seen corresponding path program 1 times [2020-12-22 06:56:49,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:49,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967440784] [2020-12-22 06:56:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:49,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967440784] [2020-12-22 06:56:49,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:49,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:49,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039489555] [2020-12-22 06:56:49,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:49,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:49,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:49,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:49,428 INFO L87 Difference]: Start difference. First operand 130 states and 179 transitions. Second operand 4 states. [2020-12-22 06:56:49,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:49,501 INFO L93 Difference]: Finished difference Result 309 states and 432 transitions. [2020-12-22 06:56:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:49,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-22 06:56:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:49,503 INFO L225 Difference]: With dead ends: 309 [2020-12-22 06:56:49,503 INFO L226 Difference]: Without dead ends: 185 [2020-12-22 06:56:49,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:49,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-12-22 06:56:49,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2020-12-22 06:56:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-12-22 06:56:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2020-12-22 06:56:49,521 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 31 [2020-12-22 06:56:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:49,522 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2020-12-22 06:56:49,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2020-12-22 06:56:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 06:56:49,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:49,524 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 06:56:49,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:56:49,525 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1478686347, now seen corresponding path program 1 times [2020-12-22 06:56:49,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:49,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131458477] [2020-12-22 06:56:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 06:56:49,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131458477] [2020-12-22 06:56:49,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:49,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:49,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139590949] [2020-12-22 06:56:49,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:49,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:49,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:49,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:49,596 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand 5 states. [2020-12-22 06:56:49,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:49,656 INFO L93 Difference]: Finished difference Result 365 states and 487 transitions. [2020-12-22 06:56:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:49,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-12-22 06:56:49,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:49,658 INFO L225 Difference]: With dead ends: 365 [2020-12-22 06:56:49,659 INFO L226 Difference]: Without dead ends: 206 [2020-12-22 06:56:49,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:49,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-22 06:56:49,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 141. [2020-12-22 06:56:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-12-22 06:56:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2020-12-22 06:56:49,674 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 50 [2020-12-22 06:56:49,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:49,674 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2020-12-22 06:56:49,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2020-12-22 06:56:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:56:49,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:49,677 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 06:56:49,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:56:49,678 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:49,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:49,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1506097615, now seen corresponding path program 1 times [2020-12-22 06:56:49,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:49,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359534228] [2020-12-22 06:56:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:56:49,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359534228] [2020-12-22 06:56:49,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:49,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:49,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793772872] [2020-12-22 06:56:49,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:49,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:49,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:49,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:49,782 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand 5 states. [2020-12-22 06:56:49,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:49,854 INFO L93 Difference]: Finished difference Result 467 states and 621 transitions. [2020-12-22 06:56:49,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:49,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-22 06:56:49,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:49,857 INFO L225 Difference]: With dead ends: 467 [2020-12-22 06:56:49,858 INFO L226 Difference]: Without dead ends: 356 [2020-12-22 06:56:49,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-12-22 06:56:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 144. [2020-12-22 06:56:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-12-22 06:56:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2020-12-22 06:56:49,875 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 51 [2020-12-22 06:56:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:49,876 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2020-12-22 06:56:49,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2020-12-22 06:56:49,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:56:49,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:49,878 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 06:56:49,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:56:49,878 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:49,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:49,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1899124625, now seen corresponding path program 1 times [2020-12-22 06:56:49,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:49,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651357268] [2020-12-22 06:56:49,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:56:49,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651357268] [2020-12-22 06:56:49,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:49,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:49,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359191725] [2020-12-22 06:56:49,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:49,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:49,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:49,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:49,951 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand 5 states. [2020-12-22 06:56:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,069 INFO L93 Difference]: Finished difference Result 368 states and 483 transitions. [2020-12-22 06:56:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:56:50,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-22 06:56:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,072 INFO L225 Difference]: With dead ends: 368 [2020-12-22 06:56:50,072 INFO L226 Difference]: Without dead ends: 366 [2020-12-22 06:56:50,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:56:50,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-12-22 06:56:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 144. [2020-12-22 06:56:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-12-22 06:56:50,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2020-12-22 06:56:50,090 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 51 [2020-12-22 06:56:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,091 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2020-12-22 06:56:50,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2020-12-22 06:56:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 06:56:50,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,092 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 06:56:50,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:56:50,093 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1033530397, now seen corresponding path program 1 times [2020-12-22 06:56:50,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067630657] [2020-12-22 06:56:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:50,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067630657] [2020-12-22 06:56:50,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396815577] [2020-12-22 06:56:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -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 [2020-12-22 06:56:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 06:56:50,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:50,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 06:56:50,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-12-22 06:56:50,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344832522] [2020-12-22 06:56:50,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:50,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:50,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:50,437 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand 6 states. [2020-12-22 06:56:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,614 INFO L93 Difference]: Finished difference Result 445 states and 587 transitions. [2020-12-22 06:56:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:56:50,614 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-12-22 06:56:50,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,617 INFO L225 Difference]: With dead ends: 445 [2020-12-22 06:56:50,617 INFO L226 Difference]: Without dead ends: 331 [2020-12-22 06:56:50,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:56:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-12-22 06:56:50,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 201. [2020-12-22 06:56:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-12-22 06:56:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2020-12-22 06:56:50,648 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 52 [2020-12-22 06:56:50,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,649 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2020-12-22 06:56:50,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2020-12-22 06:56:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 06:56:50,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 06:56:50,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 06:56:50,867 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,869 INFO L82 PathProgramCache]: Analyzing trace with hash 2113506808, now seen corresponding path program 2 times [2020-12-22 06:56:50,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338701720] [2020-12-22 06:56:50,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:56:50,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338701720] [2020-12-22 06:56:50,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:50,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:50,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626255145] [2020-12-22 06:56:50,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:50,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:50,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:50,997 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 5 states. [2020-12-22 06:56:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:51,169 INFO L93 Difference]: Finished difference Result 584 states and 775 transitions. [2020-12-22 06:56:51,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:51,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-12-22 06:56:51,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:51,172 INFO L225 Difference]: With dead ends: 584 [2020-12-22 06:56:51,176 INFO L226 Difference]: Without dead ends: 412 [2020-12-22 06:56:51,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-12-22 06:56:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 274. [2020-12-22 06:56:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-12-22 06:56:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 355 transitions. [2020-12-22 06:56:51,216 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 355 transitions. Word has length 73 [2020-12-22 06:56:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,216 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 355 transitions. [2020-12-22 06:56:51,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 355 transitions. [2020-12-22 06:56:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 06:56:51,218 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:51,218 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 06:56:51,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:56:51,219 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:51,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:51,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1906700874, now seen corresponding path program 1 times [2020-12-22 06:56:51,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:51,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824617731] [2020-12-22 06:56:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 06:56:51,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824617731] [2020-12-22 06:56:51,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:51,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:51,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239272410] [2020-12-22 06:56:51,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:51,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:51,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:51,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:51,316 INFO L87 Difference]: Start difference. First operand 274 states and 355 transitions. Second operand 5 states. [2020-12-22 06:56:51,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:51,395 INFO L93 Difference]: Finished difference Result 483 states and 625 transitions. [2020-12-22 06:56:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:51,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-12-22 06:56:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:51,398 INFO L225 Difference]: With dead ends: 483 [2020-12-22 06:56:51,398 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:51,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:51,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:51,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:51,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-12-22 06:56:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,401 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:51,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:51,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:51,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:56:51,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:51,679 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 99 [2020-12-22 06:56:51,929 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 99 [2020-12-22 06:56:52,089 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 95 [2020-12-22 06:56:52,475 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 96 [2020-12-22 06:56:52,602 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-12-22 06:56:52,836 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 17 [2020-12-22 06:56:53,152 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 17 [2020-12-22 06:56:53,365 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 16 [2020-12-22 06:56:53,498 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2020-12-22 06:56:53,675 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 18 [2020-12-22 06:56:53,801 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2020-12-22 06:56:54,090 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 9 [2020-12-22 06:56:54,554 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 21 [2020-12-22 06:56:54,581 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:54,581 INFO L189 CegarLoopUtils]: For program point L333(lines 333 350) no Hoare annotation was computed. [2020-12-22 06:56:54,581 INFO L189 CegarLoopUtils]: For program point L333-1(lines 333 350) no Hoare annotation was computed. [2020-12-22 06:56:54,582 INFO L189 CegarLoopUtils]: For program point L333-2(lines 333 350) no Hoare annotation was computed. [2020-12-22 06:56:54,582 INFO L189 CegarLoopUtils]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,582 INFO L189 CegarLoopUtils]: For program point L435-2(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,583 INFO L189 CegarLoopUtils]: For program point L435-3(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,584 INFO L189 CegarLoopUtils]: For program point L435-5(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,584 INFO L189 CegarLoopUtils]: For program point L435-6(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,584 INFO L189 CegarLoopUtils]: For program point L435-8(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,584 INFO L189 CegarLoopUtils]: For program point L435-9(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,585 INFO L189 CegarLoopUtils]: For program point L435-11(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,585 INFO L189 CegarLoopUtils]: For program point L435-12(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,585 INFO L189 CegarLoopUtils]: For program point L435-14(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,585 INFO L189 CegarLoopUtils]: For program point L435-15(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,585 INFO L189 CegarLoopUtils]: For program point L435-17(lines 435 439) no Hoare annotation was computed. [2020-12-22 06:56:54,586 INFO L189 CegarLoopUtils]: For program point L337(lines 337 345) no Hoare annotation was computed. [2020-12-22 06:56:54,586 INFO L189 CegarLoopUtils]: For program point L337-1(lines 337 345) no Hoare annotation was computed. [2020-12-22 06:56:54,586 INFO L189 CegarLoopUtils]: For program point L337-2(lines 337 345) no Hoare annotation was computed. [2020-12-22 06:56:54,586 INFO L185 CegarLoopUtils]: At program point L174-2(lines 174 188) the Hoare annotation is: false [2020-12-22 06:56:54,587 INFO L189 CegarLoopUtils]: For program point L505(lines 505 516) no Hoare annotation was computed. [2020-12-22 06:56:54,587 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:54,587 INFO L189 CegarLoopUtils]: For program point L307(lines 307 324) no Hoare annotation was computed. [2020-12-22 06:56:54,587 INFO L189 CegarLoopUtils]: For program point L307-1(lines 307 324) no Hoare annotation was computed. [2020-12-22 06:56:54,587 INFO L189 CegarLoopUtils]: For program point L307-2(lines 307 324) no Hoare annotation was computed. [2020-12-22 06:56:54,588 INFO L189 CegarLoopUtils]: For program point L307-3(lines 307 324) no Hoare annotation was computed. [2020-12-22 06:56:54,588 INFO L189 CegarLoopUtils]: For program point L175(line 175) no Hoare annotation was computed. [2020-12-22 06:56:54,588 INFO L189 CegarLoopUtils]: For program point L307-4(lines 307 324) no Hoare annotation was computed. [2020-12-22 06:56:54,588 INFO L189 CegarLoopUtils]: For program point L142(lines 142 148) no Hoare annotation was computed. [2020-12-22 06:56:54,588 INFO L189 CegarLoopUtils]: For program point L307-5(lines 307 324) no Hoare annotation was computed. [2020-12-22 06:56:54,588 INFO L189 CegarLoopUtils]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2020-12-22 06:56:54,589 INFO L189 CegarLoopUtils]: For program point L142-2(lines 142 148) no Hoare annotation was computed. [2020-12-22 06:56:54,589 INFO L189 CegarLoopUtils]: For program point L142-3(lines 142 148) no Hoare annotation was computed. [2020-12-22 06:56:54,591 INFO L189 CegarLoopUtils]: For program point L142-4(lines 142 148) no Hoare annotation was computed. [2020-12-22 06:56:54,591 INFO L189 CegarLoopUtils]: For program point L142-5(lines 142 148) no Hoare annotation was computed. [2020-12-22 06:56:54,591 INFO L185 CegarLoopUtils]: At program point L275(lines 274 293) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:54,592 INFO L189 CegarLoopUtils]: For program point L275-1(lines 275 281) no Hoare annotation was computed. [2020-12-22 06:56:54,592 INFO L185 CegarLoopUtils]: At program point L275-2(lines 274 293) the Hoare annotation is: false [2020-12-22 06:56:54,592 INFO L185 CegarLoopUtils]: At program point L275-3(lines 274 293) the Hoare annotation is: false [2020-12-22 06:56:54,592 INFO L189 CegarLoopUtils]: For program point L77(lines 77 81) no Hoare annotation was computed. [2020-12-22 06:56:54,592 INFO L189 CegarLoopUtils]: For program point L573(lines 573 586) no Hoare annotation was computed. [2020-12-22 06:56:54,592 INFO L185 CegarLoopUtils]: At program point L573-1(lines 1 955) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1) (and .cse0 (<= 2 ~waterLevel~0) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-12-22 06:56:54,592 INFO L189 CegarLoopUtils]: For program point L573-2(lines 573 586) no Hoare annotation was computed. [2020-12-22 06:56:54,593 INFO L185 CegarLoopUtils]: At program point L573-3(lines 1 955) the Hoare annotation is: false [2020-12-22 06:56:54,593 INFO L185 CegarLoopUtils]: At program point L441(lines 426 444) the Hoare annotation is: false [2020-12-22 06:56:54,593 INFO L189 CegarLoopUtils]: For program point L573-4(lines 573 586) no Hoare annotation was computed. [2020-12-22 06:56:54,593 INFO L185 CegarLoopUtils]: At program point L441-1(lines 426 444) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-12-22 06:56:54,593 INFO L185 CegarLoopUtils]: At program point L573-5(lines 1 955) the Hoare annotation is: false [2020-12-22 06:56:54,593 INFO L185 CegarLoopUtils]: At program point L441-2(lines 426 444) the Hoare annotation is: false [2020-12-22 06:56:54,594 INFO L185 CegarLoopUtils]: At program point L441-3(lines 426 444) the Hoare annotation is: false [2020-12-22 06:56:54,594 INFO L185 CegarLoopUtils]: At program point L441-4(lines 426 444) the Hoare annotation is: false [2020-12-22 06:56:54,594 INFO L185 CegarLoopUtils]: At program point L441-5(lines 426 444) the Hoare annotation is: false [2020-12-22 06:56:54,594 INFO L189 CegarLoopUtils]: For program point L178(lines 178 182) no Hoare annotation was computed. [2020-12-22 06:56:54,594 INFO L189 CegarLoopUtils]: For program point L178-1(lines 275 281) no Hoare annotation was computed. [2020-12-22 06:56:54,594 INFO L189 CegarLoopUtils]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-22 06:56:54,594 INFO L189 CegarLoopUtils]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-12-22 06:56:54,595 INFO L189 CegarLoopUtils]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-12-22 06:56:54,595 INFO L189 CegarLoopUtils]: For program point L476(lines 475 520) no Hoare annotation was computed. [2020-12-22 06:56:54,595 INFO L189 CegarLoopUtils]: For program point L311(lines 311 319) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L189 CegarLoopUtils]: For program point L311-1(lines 311 319) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L189 CegarLoopUtils]: For program point L311-2(lines 311 319) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L189 CegarLoopUtils]: For program point L311-3(lines 311 319) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L189 CegarLoopUtils]: For program point L311-4(lines 311 319) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L189 CegarLoopUtils]: For program point L311-5(lines 311 319) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L189 CegarLoopUtils]: For program point L477(lines 477 481) no Hoare annotation was computed. [2020-12-22 06:56:54,596 INFO L185 CegarLoopUtils]: At program point L147(lines 138 151) the Hoare annotation is: false [2020-12-22 06:56:54,597 INFO L185 CegarLoopUtils]: At program point L147-1(lines 138 151) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-12-22 06:56:54,597 INFO L185 CegarLoopUtils]: At program point L147-2(lines 138 151) the Hoare annotation is: false [2020-12-22 06:56:54,597 INFO L185 CegarLoopUtils]: At program point L147-3(lines 138 151) the Hoare annotation is: false [2020-12-22 06:56:54,597 INFO L185 CegarLoopUtils]: At program point L147-4(lines 138 151) the Hoare annotation is: false [2020-12-22 06:56:54,597 INFO L185 CegarLoopUtils]: At program point L147-5(lines 138 151) the Hoare annotation is: false [2020-12-22 06:56:54,597 INFO L189 CegarLoopUtils]: For program point L577(lines 577 583) no Hoare annotation was computed. [2020-12-22 06:56:54,597 INFO L189 CegarLoopUtils]: For program point L511(lines 511 515) no Hoare annotation was computed. [2020-12-22 06:56:54,598 INFO L189 CegarLoopUtils]: For program point L577-2(lines 577 583) no Hoare annotation was computed. [2020-12-22 06:56:54,598 INFO L189 CegarLoopUtils]: For program point L511-2(lines 275 281) no Hoare annotation was computed. [2020-12-22 06:56:54,598 INFO L189 CegarLoopUtils]: For program point L577-4(lines 577 583) no Hoare annotation was computed. [2020-12-22 06:56:54,598 INFO L185 CegarLoopUtils]: At program point L282(lines 282 288) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:54,598 INFO L185 CegarLoopUtils]: At program point L282-1(lines 282 288) the Hoare annotation is: false [2020-12-22 06:56:54,598 INFO L185 CegarLoopUtils]: At program point L282-2(lines 282 288) the Hoare annotation is: false [2020-12-22 06:56:54,598 INFO L189 CegarLoopUtils]: For program point L250(lines 250 257) no Hoare annotation was computed. [2020-12-22 06:56:54,599 INFO L192 CegarLoopUtils]: At program point L250-1(lines 250 257) the Hoare annotation is: true [2020-12-22 06:56:54,599 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:54,599 INFO L189 CegarLoopUtils]: For program point L485(lines 485 491) no Hoare annotation was computed. [2020-12-22 06:56:54,599 INFO L185 CegarLoopUtils]: At program point L485-1(lines 485 491) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-12-22 06:56:54,599 INFO L185 CegarLoopUtils]: At program point L386(lines 381 389) the Hoare annotation is: false [2020-12-22 06:56:54,600 INFO L185 CegarLoopUtils]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2020-12-22 06:56:54,600 INFO L185 CegarLoopUtils]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2020-12-22 06:56:54,600 INFO L189 CegarLoopUtils]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L185 CegarLoopUtils]: At program point L552(lines 1 955) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:54,601 INFO L189 CegarLoopUtils]: For program point L454(lines 454 458) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L189 CegarLoopUtils]: For program point L454-2(lines 454 458) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L189 CegarLoopUtils]: For program point L454-3(lines 454 458) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L189 CegarLoopUtils]: For program point L454-5(lines 454 458) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L189 CegarLoopUtils]: For program point L454-6(lines 454 458) no Hoare annotation was computed. [2020-12-22 06:56:54,601 INFO L185 CegarLoopUtils]: At program point L223(lines 219 225) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:54,602 INFO L189 CegarLoopUtils]: For program point L454-8(lines 454 458) no Hoare annotation was computed. [2020-12-22 06:56:54,602 INFO L185 CegarLoopUtils]: At program point L157(lines 152 160) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:54,602 INFO L185 CegarLoopUtils]: At program point L157-1(lines 152 160) the Hoare annotation is: false [2020-12-22 06:56:54,604 INFO L185 CegarLoopUtils]: At program point L157-2(lines 152 160) the Hoare annotation is: false [2020-12-22 06:56:54,605 INFO L185 CegarLoopUtils]: At program point L521(lines 474 522) the Hoare annotation is: false [2020-12-22 06:56:54,605 INFO L192 CegarLoopUtils]: At program point L259(lines 240 262) the Hoare annotation is: true [2020-12-22 06:56:54,605 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:54,605 INFO L185 CegarLoopUtils]: At program point L460(lines 445 463) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:54,606 INFO L185 CegarLoopUtils]: At program point L460-1(lines 445 463) the Hoare annotation is: false [2020-12-22 06:56:54,606 INFO L185 CegarLoopUtils]: At program point L460-2(lines 445 463) the Hoare annotation is: false [2020-12-22 06:56:54,606 INFO L185 CegarLoopUtils]: At program point L560(lines 555 563) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:54,606 INFO L189 CegarLoopUtils]: For program point L65(lines 65 69) no Hoare annotation was computed. [2020-12-22 06:56:54,606 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:54,606 INFO L189 CegarLoopUtils]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-12-22 06:56:54,606 INFO L189 CegarLoopUtils]: For program point L65-6(lines 65 69) no Hoare annotation was computed. [2020-12-22 06:56:54,606 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:54,607 INFO L189 CegarLoopUtils]: For program point L495(lines 495 501) no Hoare annotation was computed. [2020-12-22 06:56:54,607 INFO L185 CegarLoopUtils]: At program point L495-1(lines 495 501) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-12-22 06:56:54,607 INFO L185 CegarLoopUtils]: At program point L134(lines 129 137) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2))) [2020-12-22 06:56:54,607 INFO L185 CegarLoopUtils]: At program point L134-1(lines 129 137) the Hoare annotation is: false [2020-12-22 06:56:54,607 INFO L185 CegarLoopUtils]: At program point L134-2(lines 129 137) the Hoare annotation is: false [2020-12-22 06:56:54,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:54 BoogieIcfgContainer [2020-12-22 06:56:54,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:54,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:54,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:54,651 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:54,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:47" (3/4) ... [2020-12-22 06:56:54,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:54,689 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:54,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:54,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:54,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:54,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:54,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:54,696 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:54,726 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) [2020-12-22 06:56:54,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-12-22 06:56:54,733 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-12-22 06:56:54,734 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:54,740 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-12-22 06:56:54,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:54,853 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product49.cil.c-witness.graphml [2020-12-22 06:56:54,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:54,855 INFO L168 Benchmark]: Toolchain (without parser) took 9207.26 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 125.5 MB in the beginning and 85.6 MB in the end (delta: 39.9 MB). Peak memory consumption was 114.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,855 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:54,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.86 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 104.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.12 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 132.4 MB in the end (delta: -28.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,856 INFO L168 Benchmark]: Boogie Preprocessor took 55.43 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 129.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,857 INFO L168 Benchmark]: RCFGBuilder took 1220.71 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 67.4 MB in the end (delta: 62.4 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,857 INFO L168 Benchmark]: TraceAbstraction took 7011.75 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 67.4 MB in the beginning and 95.6 MB in the end (delta: -28.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,858 INFO L168 Benchmark]: Witness Printer took 202.18 ms. Allocated memory is still 224.4 MB. Free memory was 95.6 MB in the beginning and 85.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:54,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 567.86 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 104.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 138.12 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 132.4 MB in the end (delta: -28.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 55.43 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 129.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1220.71 ms. Allocated memory is still 151.0 MB. Free memory was 129.8 MB in the beginning and 67.4 MB in the end (delta: 62.4 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7011.75 ms. Allocated memory was 151.0 MB in the beginning and 224.4 MB in the end (delta: 73.4 MB). Free memory was 67.4 MB in the beginning and 95.6 MB in the end (delta: -28.1 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. * Witness Printer took 202.18 ms. Allocated memory is still 224.4 MB. Free memory was 95.6 MB in the beginning and 85.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 1985 SDslu, 2095 SDs, 0 SdLazy, 367 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 1114 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 115 NumberOfFragments, 308 HoareAnnotationTreeSize, 42 FomulaSimplifications, 1002506 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 52725 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 43845 SizeOfPredicates, 3 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 162/168 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...