/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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:45,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:45,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:45,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:45,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:45,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:45,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:45,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:45,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:45,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:45,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:45,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:45,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:45,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:45,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:45,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:45,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:45,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:45,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:45,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:45,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:45,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:45,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:45,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:45,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:45,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:45,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:45,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:45,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:45,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:45,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:45,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:45,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:45,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:45,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:45,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:45,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:45,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:45,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:45,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:45,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:45,624 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:45,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:45,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:45,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:45,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:45,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:45,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:45,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:45,627 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:45,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:45,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:45,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:45,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:45,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:45,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:45,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:45,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:45,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:45,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:45,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:45,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:45,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:46,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:46,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:46,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:46,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:46,145 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:46,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2020-12-22 06:56:46,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b993c452/a546f55ce7cf41f8b2ecf6794740c58c/FLAG4f79f1764 [2020-12-22 06:56:46,929 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:46,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2020-12-22 06:56:46,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b993c452/a546f55ce7cf41f8b2ecf6794740c58c/FLAG4f79f1764 [2020-12-22 06:56:47,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b993c452/a546f55ce7cf41f8b2ecf6794740c58c [2020-12-22 06:56:47,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:47,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:47,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:47,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:47,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:47,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160169e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47, skipping insertion in model container [2020-12-22 06:56:47,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:47,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:47,595 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_product50.cil.c[12686,12699] [2020-12-22 06:56:47,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:47,646 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:47,709 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_product50.cil.c[12686,12699] [2020-12-22 06:56:47,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:47,794 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:47,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47 WrapperNode [2020-12-22 06:56:47,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:47,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:47,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:47,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:47,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:47,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:47,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:47,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:47,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (1/1) ... [2020-12-22 06:56:47,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:47,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:47,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:47,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:47,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (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 06:56:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:49,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:49,329 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2020-12-22 06:56:49,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:49 BoogieIcfgContainer [2020-12-22 06:56:49,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:49,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:49,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:49,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:49,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:47" (1/3) ... [2020-12-22 06:56:49,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bb4534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:49, skipping insertion in model container [2020-12-22 06:56:49,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:47" (2/3) ... [2020-12-22 06:56:49,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bb4534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:49, skipping insertion in model container [2020-12-22 06:56:49,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:49" (3/3) ... [2020-12-22 06:56:49,342 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-12-22 06:56:49,349 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:49,354 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:49,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:49,410 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:49,410 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:49,410 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:49,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:49,410 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:49,411 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:49,411 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:49,411 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:49,431 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-12-22 06:56:49,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:49,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:49,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:49,440 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:49,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1800894747, now seen corresponding path program 1 times [2020-12-22 06:56:49,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:49,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982871847] [2020-12-22 06:56:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:49,798 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 06:56:49,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982871847] [2020-12-22 06:56:49,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:49,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:49,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329721068] [2020-12-22 06:56:49,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:49,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:49,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:49,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:49,838 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2020-12-22 06:56:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:49,906 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2020-12-22 06:56:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:49,908 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:49,937 INFO L225 Difference]: With dead ends: 228 [2020-12-22 06:56:49,937 INFO L226 Difference]: Without dead ends: 113 [2020-12-22 06:56:49,941 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 06:56:49,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-22 06:56:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-12-22 06:56:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-12-22 06:56:50,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-12-22 06:56:50,013 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-12-22 06:56:50,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,014 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-12-22 06:56:50,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-12-22 06:56:50,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:50,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,019 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 06:56:50,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:50,021 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1447315652, now seen corresponding path program 1 times [2020-12-22 06:56:50,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663913200] [2020-12-22 06:56:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,127 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 06:56:50,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663913200] [2020-12-22 06:56:50,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:50,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:50,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576229660] [2020-12-22 06:56:50,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:50,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:50,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:50,131 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2020-12-22 06:56:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,143 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-12-22 06:56:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:50,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,145 INFO L225 Difference]: With dead ends: 113 [2020-12-22 06:56:50,145 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 06:56:50,146 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 06:56:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 06:56:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 06:56:50,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 06:56:50,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-12-22 06:56:50,153 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-12-22 06:56:50,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,153 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-12-22 06:56:50,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-12-22 06:56:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:50,154 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,154 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 06:56:50,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:50,155 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,156 INFO L82 PathProgramCache]: Analyzing trace with hash -230586389, now seen corresponding path program 1 times [2020-12-22 06:56:50,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498511368] [2020-12-22 06:56:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,283 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 06:56:50,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498511368] [2020-12-22 06:56:50,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:50,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:50,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798640992] [2020-12-22 06:56:50,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:50,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:50,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:50,286 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 5 states. [2020-12-22 06:56:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,361 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-12-22 06:56:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:50,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-22 06:56:50,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,362 INFO L225 Difference]: With dead ends: 88 [2020-12-22 06:56:50,363 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 06:56:50,363 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 06:56:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 06:56:50,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 06:56:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 06:56:50,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-12-22 06:56:50,381 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-12-22 06:56:50,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,382 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-12-22 06:56:50,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-12-22 06:56:50,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:50,383 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,383 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 06:56:50,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:50,384 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,384 INFO L82 PathProgramCache]: Analyzing trace with hash -108421843, now seen corresponding path program 1 times [2020-12-22 06:56:50,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969907302] [2020-12-22 06:56:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,486 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 06:56:50,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969907302] [2020-12-22 06:56:50,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:50,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:50,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180874254] [2020-12-22 06:56:50,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:50,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:50,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:50,491 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-12-22 06:56:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,539 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-12-22 06:56:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:50,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,540 INFO L225 Difference]: With dead ends: 109 [2020-12-22 06:56:50,541 INFO L226 Difference]: Without dead ends: 68 [2020-12-22 06:56:50,541 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 06:56:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-22 06:56:50,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-12-22 06:56:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-22 06:56:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-12-22 06:56:50,550 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-12-22 06:56:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,551 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-12-22 06:56:50,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:50,551 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-12-22 06:56:50,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:56:50,552 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,552 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 06:56:50,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:50,553 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1619186466, now seen corresponding path program 1 times [2020-12-22 06:56:50,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777658572] [2020-12-22 06:56:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,620 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 06:56:50,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777658572] [2020-12-22 06:56:50,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:50,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:50,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593618887] [2020-12-22 06:56:50,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:50,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:50,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:50,625 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-12-22 06:56:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,736 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-12-22 06:56:50,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:50,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-22 06:56:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,741 INFO L225 Difference]: With dead ends: 175 [2020-12-22 06:56:50,741 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 06:56:50,742 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 06:56:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 06:56:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-12-22 06:56:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 06:56:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-12-22 06:56:50,753 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-12-22 06:56:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:50,753 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-12-22 06:56:50,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-12-22 06:56:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:56:50,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:50,755 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 06:56:50,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:50,755 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:50,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1043324577, now seen corresponding path program 1 times [2020-12-22 06:56:50,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:50,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448892499] [2020-12-22 06:56:50,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:50,843 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 06:56:50,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448892499] [2020-12-22 06:56:50,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:50,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:50,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963537084] [2020-12-22 06:56:50,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:50,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:50,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:50,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:50,847 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2020-12-22 06:56:50,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:50,957 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2020-12-22 06:56:50,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:50,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-22 06:56:50,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:50,962 INFO L225 Difference]: With dead ends: 253 [2020-12-22 06:56:50,962 INFO L226 Difference]: Without dead ends: 187 [2020-12-22 06:56:50,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 06:56:50,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-22 06:56:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-12-22 06:56:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 06:56:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 155 transitions. [2020-12-22 06:56:51,000 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 155 transitions. Word has length 30 [2020-12-22 06:56:51,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,001 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 155 transitions. [2020-12-22 06:56:51,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 155 transitions. [2020-12-22 06:56:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:51,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:51,007 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 06:56:51,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:56:51,007 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:51,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:51,010 INFO L82 PathProgramCache]: Analyzing trace with hash -964491617, now seen corresponding path program 1 times [2020-12-22 06:56:51,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:51,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923875818] [2020-12-22 06:56:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:51,074 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 06:56:51,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923875818] [2020-12-22 06:56:51,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:51,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:51,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396064170] [2020-12-22 06:56:51,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:51,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:51,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:51,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:51,078 INFO L87 Difference]: Start difference. First operand 115 states and 155 transitions. Second operand 4 states. [2020-12-22 06:56:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:51,216 INFO L93 Difference]: Finished difference Result 238 states and 327 transitions. [2020-12-22 06:56:51,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:51,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-22 06:56:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:51,220 INFO L225 Difference]: With dead ends: 238 [2020-12-22 06:56:51,221 INFO L226 Difference]: Without dead ends: 172 [2020-12-22 06:56:51,222 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 06:56:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-22 06:56:51,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-12-22 06:56:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 06:56:51,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 228 transitions. [2020-12-22 06:56:51,247 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 228 transitions. Word has length 31 [2020-12-22 06:56:51,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,247 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 228 transitions. [2020-12-22 06:56:51,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 228 transitions. [2020-12-22 06:56:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:51,254 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:51,254 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 06:56:51,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:56:51,255 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:51,256 INFO L82 PathProgramCache]: Analyzing trace with hash -706326179, now seen corresponding path program 1 times [2020-12-22 06:56:51,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:51,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975425580] [2020-12-22 06:56:51,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:51,350 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 06:56:51,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975425580] [2020-12-22 06:56:51,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:51,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:51,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877729218] [2020-12-22 06:56:51,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:51,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:51,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:51,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:51,354 INFO L87 Difference]: Start difference. First operand 169 states and 228 transitions. Second operand 4 states. [2020-12-22 06:56:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:51,414 INFO L93 Difference]: Finished difference Result 400 states and 551 transitions. [2020-12-22 06:56:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:51,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-22 06:56:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:51,417 INFO L225 Difference]: With dead ends: 400 [2020-12-22 06:56:51,417 INFO L226 Difference]: Without dead ends: 279 [2020-12-22 06:56:51,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:51,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-12-22 06:56:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 163. [2020-12-22 06:56:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-12-22 06:56:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 220 transitions. [2020-12-22 06:56:51,450 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 220 transitions. Word has length 31 [2020-12-22 06:56:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,451 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 220 transitions. [2020-12-22 06:56:51,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 220 transitions. [2020-12-22 06:56:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:51,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:51,457 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 06:56:51,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:56:51,458 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:51,458 INFO L82 PathProgramCache]: Analyzing trace with hash 533103064, now seen corresponding path program 1 times [2020-12-22 06:56:51,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:51,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538262284] [2020-12-22 06:56:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:51,552 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 06:56:51,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538262284] [2020-12-22 06:56:51,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:51,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:51,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554714857] [2020-12-22 06:56:51,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:51,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:51,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:51,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:51,555 INFO L87 Difference]: Start difference. First operand 163 states and 220 transitions. Second operand 5 states. [2020-12-22 06:56:51,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:51,722 INFO L93 Difference]: Finished difference Result 353 states and 482 transitions. [2020-12-22 06:56:51,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:51,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:56:51,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:51,724 INFO L225 Difference]: With dead ends: 353 [2020-12-22 06:56:51,725 INFO L226 Difference]: Without dead ends: 238 [2020-12-22 06:56:51,725 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 06:56:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-22 06:56:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 159. [2020-12-22 06:56:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-12-22 06:56:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2020-12-22 06:56:51,740 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 31 [2020-12-22 06:56:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,741 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2020-12-22 06:56:51,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2020-12-22 06:56:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 06:56:51,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:51,742 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 06:56:51,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:56:51,743 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:51,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1625643979, now seen corresponding path program 1 times [2020-12-22 06:56:51,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:51,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224816073] [2020-12-22 06:56:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:51,842 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 06:56:51,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224816073] [2020-12-22 06:56:51,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:51,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:51,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208676044] [2020-12-22 06:56:51,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:51,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:51,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:51,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:51,850 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand 4 states. [2020-12-22 06:56:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:51,895 INFO L93 Difference]: Finished difference Result 335 states and 448 transitions. [2020-12-22 06:56:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:51,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-12-22 06:56:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:51,908 INFO L225 Difference]: With dead ends: 335 [2020-12-22 06:56:51,909 INFO L226 Difference]: Without dead ends: 182 [2020-12-22 06:56:51,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-12-22 06:56:51,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 135. [2020-12-22 06:56:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-22 06:56:51,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 176 transitions. [2020-12-22 06:56:51,925 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 176 transitions. Word has length 50 [2020-12-22 06:56:51,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:51,925 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 176 transitions. [2020-12-22 06:56:51,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:51,925 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 176 transitions. [2020-12-22 06:56:51,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:56:51,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:51,926 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 06:56:51,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:56:51,927 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:51,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:51,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1653055247, now seen corresponding path program 1 times [2020-12-22 06:56:51,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:51,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426585765] [2020-12-22 06:56:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:51,994 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 06:56:51,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426585765] [2020-12-22 06:56:51,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:51,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:51,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265443271] [2020-12-22 06:56:51,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:51,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:51,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:51,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:51,997 INFO L87 Difference]: Start difference. First operand 135 states and 176 transitions. Second operand 5 states. [2020-12-22 06:56:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:52,067 INFO L93 Difference]: Finished difference Result 449 states and 597 transitions. [2020-12-22 06:56:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:52,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-22 06:56:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:52,070 INFO L225 Difference]: With dead ends: 449 [2020-12-22 06:56:52,070 INFO L226 Difference]: Without dead ends: 344 [2020-12-22 06:56:52,071 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 06:56:52,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-12-22 06:56:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 138. [2020-12-22 06:56:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-22 06:56:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2020-12-22 06:56:52,090 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 51 [2020-12-22 06:56:52,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:52,091 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2020-12-22 06:56:52,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2020-12-22 06:56:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:56:52,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:52,092 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] [2020-12-22 06:56:52,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:56:52,092 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash -2046082257, now seen corresponding path program 1 times [2020-12-22 06:56:52,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:52,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103714833] [2020-12-22 06:56:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:52,153 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 06:56:52,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103714833] [2020-12-22 06:56:52,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:52,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:52,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415748583] [2020-12-22 06:56:52,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:52,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:52,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:52,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:52,156 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand 5 states. [2020-12-22 06:56:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:52,305 INFO L93 Difference]: Finished difference Result 347 states and 455 transitions. [2020-12-22 06:56:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:56:52,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-12-22 06:56:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:52,309 INFO L225 Difference]: With dead ends: 347 [2020-12-22 06:56:52,309 INFO L226 Difference]: Without dead ends: 345 [2020-12-22 06:56:52,309 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 06:56:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-22 06:56:52,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 138. [2020-12-22 06:56:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-22 06:56:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2020-12-22 06:56:52,329 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 51 [2020-12-22 06:56:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:52,330 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2020-12-22 06:56:52,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2020-12-22 06:56:52,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 06:56:52,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:52,332 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 06:56:52,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:56:52,332 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:52,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:52,333 INFO L82 PathProgramCache]: Analyzing trace with hash 772811102, now seen corresponding path program 1 times [2020-12-22 06:56:52,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:52,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180453629] [2020-12-22 06:56:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:52,488 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 06:56:52,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180453629] [2020-12-22 06:56:52,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782816462] [2020-12-22 06:56:52,489 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 06:56:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:52,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 06:56:52,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:52,905 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 06:56:52,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 06:56:52,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-12-22 06:56:52,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261838073] [2020-12-22 06:56:52,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:52,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:52,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:52,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:52,907 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand 6 states. [2020-12-22 06:56:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:53,180 INFO L93 Difference]: Finished difference Result 427 states and 563 transitions. [2020-12-22 06:56:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:56:53,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-12-22 06:56:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:53,183 INFO L225 Difference]: With dead ends: 427 [2020-12-22 06:56:53,183 INFO L226 Difference]: Without dead ends: 319 [2020-12-22 06:56:53,184 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 06:56:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-12-22 06:56:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 195. [2020-12-22 06:56:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-12-22 06:56:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 254 transitions. [2020-12-22 06:56:53,228 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 254 transitions. Word has length 52 [2020-12-22 06:56:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:53,228 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 254 transitions. [2020-12-22 06:56:53,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 254 transitions. [2020-12-22 06:56:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 06:56:53,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:53,230 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 06:56:53,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 06:56:53,444 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:53,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1104899688, now seen corresponding path program 2 times [2020-12-22 06:56:53,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:53,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585501290] [2020-12-22 06:56:53,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:53,606 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 06:56:53,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585501290] [2020-12-22 06:56:53,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:53,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:53,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583602359] [2020-12-22 06:56:53,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:53,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:53,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:53,610 INFO L87 Difference]: Start difference. First operand 195 states and 254 transitions. Second operand 5 states. [2020-12-22 06:56:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:53,931 INFO L93 Difference]: Finished difference Result 569 states and 755 transitions. [2020-12-22 06:56:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:53,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-12-22 06:56:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:53,934 INFO L225 Difference]: With dead ends: 569 [2020-12-22 06:56:53,934 INFO L226 Difference]: Without dead ends: 403 [2020-12-22 06:56:53,935 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 06:56:53,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-12-22 06:56:53,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 268. [2020-12-22 06:56:53,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-12-22 06:56:53,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 347 transitions. [2020-12-22 06:56:53,977 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 347 transitions. Word has length 73 [2020-12-22 06:56:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:53,978 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 347 transitions. [2020-12-22 06:56:53,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:53,978 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 347 transitions. [2020-12-22 06:56:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 06:56:53,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:53,979 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 06:56:53,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:56:53,980 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:53,980 INFO L82 PathProgramCache]: Analyzing trace with hash -830140074, now seen corresponding path program 1 times [2020-12-22 06:56:53,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:53,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486706913] [2020-12-22 06:56:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:54,082 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 06:56:54,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486706913] [2020-12-22 06:56:54,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:54,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:54,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29200472] [2020-12-22 06:56:54,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:56:54,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:54,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:56:54,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:54,088 INFO L87 Difference]: Start difference. First operand 268 states and 347 transitions. Second operand 7 states. [2020-12-22 06:56:54,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:54,197 INFO L93 Difference]: Finished difference Result 471 states and 609 transitions. [2020-12-22 06:56:54,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:56:54,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2020-12-22 06:56:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:54,198 INFO L225 Difference]: With dead ends: 471 [2020-12-22 06:56:54,198 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:54,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:56:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:54,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:54,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-12-22 06:56:54,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:54,203 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:54,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:56:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:54,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:54,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:56:54,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:54,390 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 66 [2020-12-22 06:56:54,710 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2020-12-22 06:56:54,962 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 122 [2020-12-22 06:56:55,362 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2020-12-22 06:56:55,815 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2020-12-22 06:56:55,971 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 123 [2020-12-22 06:56:56,130 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2020-12-22 06:56:56,673 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 26 [2020-12-22 06:56:57,252 WARN L197 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 31 [2020-12-22 06:56:57,818 WARN L197 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 26 [2020-12-22 06:56:58,093 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 27 [2020-12-22 06:56:58,282 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 32 [2020-12-22 06:56:58,562 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 35 [2020-12-22 06:56:59,047 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 26 [2020-12-22 06:56:59,449 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 29 [2020-12-22 06:56:59,487 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2020-12-22 06:56:59,488 INFO L189 CegarLoopUtils]: For program point L863(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,488 INFO L189 CegarLoopUtils]: For program point L863-2(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,488 INFO L189 CegarLoopUtils]: For program point L863-3(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,488 INFO L189 CegarLoopUtils]: For program point L863-5(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,488 INFO L185 CegarLoopUtils]: At program point L665(lines 660 668) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (= ULTIMATE.start_main_~tmp~4 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 .cse2 .cse3) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse2 .cse3))) [2020-12-22 06:56:59,488 INFO L189 CegarLoopUtils]: For program point L863-6(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,489 INFO L185 CegarLoopUtils]: At program point L665-1(lines 660 668) the Hoare annotation is: false [2020-12-22 06:56:59,489 INFO L189 CegarLoopUtils]: For program point L863-8(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,489 INFO L185 CegarLoopUtils]: At program point L665-2(lines 660 668) the Hoare annotation is: false [2020-12-22 06:56:59,489 INFO L189 CegarLoopUtils]: For program point L863-9(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,489 INFO L185 CegarLoopUtils]: At program point L500(lines 496 502) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:59,489 INFO L189 CegarLoopUtils]: For program point L863-11(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,489 INFO L189 CegarLoopUtils]: For program point L863-12(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L863-14(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L863-15(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L863-17(lines 863 867) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L765(lines 765 773) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L189 CegarLoopUtils]: For program point L931(lines 931 937) no Hoare annotation was computed. [2020-12-22 06:56:59,490 INFO L185 CegarLoopUtils]: At program point L931-1(lines 931 937) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (= ULTIMATE.start_main_~tmp~4 1))) (or (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 .cse2 .cse3) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2020-12-22 06:56:59,491 INFO L192 CegarLoopUtils]: At program point L536(lines 517 539) the Hoare annotation is: true [2020-12-22 06:56:59,491 INFO L189 CegarLoopUtils]: For program point L735(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:56:59,491 INFO L189 CegarLoopUtils]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:56:59,491 INFO L189 CegarLoopUtils]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:56:59,491 INFO L189 CegarLoopUtils]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:56:59,491 INFO L189 CegarLoopUtils]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:56:59,491 INFO L189 CegarLoopUtils]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:56:59,491 INFO L185 CegarLoopUtils]: At program point L703(lines 702 721) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (= ULTIMATE.start_main_~tmp~4 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2 (<= 1 ~waterLevel~0) .cse3 .cse4) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2 .cse3 .cse4))) [2020-12-22 06:56:59,492 INFO L189 CegarLoopUtils]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2020-12-22 06:56:59,492 INFO L185 CegarLoopUtils]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2020-12-22 06:56:59,492 INFO L185 CegarLoopUtils]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2020-12-22 06:56:59,492 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2020-12-22 06:56:59,492 INFO L185 CegarLoopUtils]: At program point L869(lines 854 872) the Hoare annotation is: false [2020-12-22 06:56:59,492 INFO L185 CegarLoopUtils]: At program point L869-1(lines 854 872) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (= ULTIMATE.start_main_~tmp~4 1))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 1) (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 .cse4) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 .cse2 .cse3 .cse4))) [2020-12-22 06:56:59,493 INFO L185 CegarLoopUtils]: At program point L869-2(lines 854 872) the Hoare annotation is: false [2020-12-22 06:56:59,493 INFO L185 CegarLoopUtils]: At program point L869-3(lines 854 872) the Hoare annotation is: false [2020-12-22 06:56:59,493 INFO L185 CegarLoopUtils]: At program point L869-4(lines 854 872) the Hoare annotation is: false [2020-12-22 06:56:59,493 INFO L185 CegarLoopUtils]: At program point L869-5(lines 854 872) the Hoare annotation is: false [2020-12-22 06:56:59,493 INFO L185 CegarLoopUtils]: At program point L572(lines 1 966) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2020-12-22 06:56:59,493 INFO L189 CegarLoopUtils]: For program point L739(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:56:59,493 INFO L189 CegarLoopUtils]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:56:59,493 INFO L189 CegarLoopUtils]: For program point L673(lines 673 679) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L673-1(lines 673 679) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L673-2(lines 673 679) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L673-3(lines 673 679) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L673-4(lines 673 679) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L673-5(lines 673 679) no Hoare annotation was computed. [2020-12-22 06:56:59,494 INFO L189 CegarLoopUtils]: For program point L608(lines 608 612) no Hoare annotation was computed. [2020-12-22 06:56:59,495 INFO L189 CegarLoopUtils]: For program point L941(lines 941 954) no Hoare annotation was computed. [2020-12-22 06:56:59,495 INFO L185 CegarLoopUtils]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (= ULTIMATE.start_main_~tmp~4 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 .cse2 .cse3) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2020-12-22 06:56:59,495 INFO L185 CegarLoopUtils]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2020-12-22 06:56:59,495 INFO L185 CegarLoopUtils]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2020-12-22 06:56:59,495 INFO L189 CegarLoopUtils]: For program point L545(line 545) no Hoare annotation was computed. [2020-12-22 06:56:59,495 INFO L189 CegarLoopUtils]: For program point L545-1(line 545) no Hoare annotation was computed. [2020-12-22 06:56:59,495 INFO L189 CegarLoopUtils]: For program point L545-2(line 545) no Hoare annotation was computed. [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L678(lines 669 682) the Hoare annotation is: false [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L678-1(lines 669 682) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (= ULTIMATE.start_main_~tmp~4 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 .cse4))) [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L678-2(lines 669 682) the Hoare annotation is: false [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L678-3(lines 669 682) the Hoare annotation is: false [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L678-4(lines 669 682) the Hoare annotation is: false [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L678-5(lines 669 682) the Hoare annotation is: false [2020-12-22 06:56:59,496 INFO L185 CegarLoopUtils]: At program point L580(lines 575 583) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-12-22 06:56:59,497 INFO L185 CegarLoopUtils]: At program point L449-2(lines 449 463) the Hoare annotation is: false [2020-12-22 06:56:59,497 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:59,497 INFO L189 CegarLoopUtils]: For program point L912(lines 911 958) no Hoare annotation was computed. [2020-12-22 06:56:59,497 INFO L189 CegarLoopUtils]: For program point L450(line 450) no Hoare annotation was computed. [2020-12-22 06:56:59,497 INFO L189 CegarLoopUtils]: For program point L913(lines 913 917) no Hoare annotation was computed. [2020-12-22 06:56:59,497 INFO L185 CegarLoopUtils]: At program point L814(lines 809 817) the Hoare annotation is: false [2020-12-22 06:56:59,497 INFO L185 CegarLoopUtils]: At program point L814-1(lines 809 817) the Hoare annotation is: false [2020-12-22 06:56:59,498 INFO L185 CegarLoopUtils]: At program point L814-2(lines 809 817) the Hoare annotation is: false [2020-12-22 06:56:59,498 INFO L189 CegarLoopUtils]: For program point L419(lines 419 432) no Hoare annotation was computed. [2020-12-22 06:56:59,498 INFO L185 CegarLoopUtils]: At program point L419-1(lines 1 966) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (= ULTIMATE.start_main_~tmp~4 1))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse3 .cse4) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2 (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse3 .cse4) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2 .cse3 .cse4))) [2020-12-22 06:56:59,498 INFO L189 CegarLoopUtils]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2020-12-22 06:56:59,498 INFO L185 CegarLoopUtils]: At program point L419-3(lines 1 966) the Hoare annotation is: false [2020-12-22 06:56:59,498 INFO L189 CegarLoopUtils]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2020-12-22 06:56:59,498 INFO L185 CegarLoopUtils]: At program point L419-5(lines 1 966) the Hoare annotation is: false [2020-12-22 06:56:59,498 INFO L189 CegarLoopUtils]: For program point L882(lines 882 886) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L882-2(lines 882 886) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L882-3(lines 882 886) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L882-5(lines 882 886) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L882-6(lines 882 886) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L882-8(lines 882 886) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L453(lines 453 457) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L453-1(lines 703 709) no Hoare annotation was computed. [2020-12-22 06:56:59,499 INFO L189 CegarLoopUtils]: For program point L949(lines 949 953) no Hoare annotation was computed. [2020-12-22 06:56:59,500 INFO L185 CegarLoopUtils]: At program point L949-2(lines 703 709) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (= ULTIMATE.start_main_~tmp~4 1))) (or (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 .cse2 .cse3) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2020-12-22 06:56:59,500 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:59,500 INFO L189 CegarLoopUtils]: For program point L620(lines 620 624) no Hoare annotation was computed. [2020-12-22 06:56:59,500 INFO L189 CegarLoopUtils]: For program point L423(lines 423 429) no Hoare annotation was computed. [2020-12-22 06:56:59,500 INFO L189 CegarLoopUtils]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2020-12-22 06:56:59,500 INFO L189 CegarLoopUtils]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2020-12-22 06:56:59,500 INFO L185 CegarLoopUtils]: At program point L688(lines 683 691) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:59,500 INFO L185 CegarLoopUtils]: At program point L688-1(lines 683 691) the Hoare annotation is: false [2020-12-22 06:56:59,501 INFO L185 CegarLoopUtils]: At program point L688-2(lines 683 691) the Hoare annotation is: false [2020-12-22 06:56:59,501 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:59,501 INFO L189 CegarLoopUtils]: For program point L921(lines 921 927) no Hoare annotation was computed. [2020-12-22 06:56:59,501 INFO L185 CegarLoopUtils]: At program point L921-1(lines 921 927) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (= ULTIMATE.start_main_~tmp~4 1))) (or (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 .cse2 .cse3) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2020-12-22 06:56:59,501 INFO L185 CegarLoopUtils]: At program point L888(lines 873 891) the Hoare annotation is: (and (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~8 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:59,501 INFO L185 CegarLoopUtils]: At program point L888-1(lines 873 891) the Hoare annotation is: false [2020-12-22 06:56:59,501 INFO L185 CegarLoopUtils]: At program point L888-2(lines 873 891) the Hoare annotation is: false [2020-12-22 06:56:59,502 INFO L189 CegarLoopUtils]: For program point L527(lines 527 534) no Hoare annotation was computed. [2020-12-22 06:56:59,502 INFO L192 CegarLoopUtils]: At program point L527-1(lines 527 534) the Hoare annotation is: true [2020-12-22 06:56:59,502 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:59,502 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2020-12-22 06:56:59,502 INFO L185 CegarLoopUtils]: At program point L959(lines 910 960) the Hoare annotation is: false [2020-12-22 06:56:59,502 INFO L189 CegarLoopUtils]: For program point L761(lines 761 778) no Hoare annotation was computed. [2020-12-22 06:56:59,502 INFO L189 CegarLoopUtils]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2020-12-22 06:56:59,502 INFO L189 CegarLoopUtils]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2020-12-22 06:56:59,503 INFO L189 CegarLoopUtils]: For program point L596(lines 596 600) no Hoare annotation was computed. [2020-12-22 06:56:59,503 INFO L189 CegarLoopUtils]: For program point L596-3(lines 596 600) no Hoare annotation was computed. [2020-12-22 06:56:59,503 INFO L189 CegarLoopUtils]: For program point L596-6(lines 596 600) no Hoare annotation was computed. [2020-12-22 06:56:59,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:59 BoogieIcfgContainer [2020-12-22 06:56:59,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:59,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:59,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:59,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:59,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:49" (3/4) ... [2020-12-22 06:56:59,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:59,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:59,572 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:59,573 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:59,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:59,575 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:59,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:59,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:59,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 [2020-12-22 06:56:59,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == 1 [2020-12-22 06:56:59,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= tmp && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) && \result == 1) && tmp == 1) || ((((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && tmp == 0) && splverifierCounter == 0) && 2 <= tmp) && \result == 1) && tmp == 1)) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,610 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,610 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(0 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && tmp == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1)) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,610 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,612 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && !(0 == systemActive)) && 2 <= \result) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,613 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && !(0 == systemActive)) && tmp == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:59,613 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,614 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(tmp___0 == 0) && !(\result == 0)) && \result == 0) && !(0 == systemActive)) && tmp == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 0) && \result == 1) && tmp == 1 [2020-12-22 06:56:59,615 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp___0 == 0 && tmp == 1) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && \result == 1) && tmp == 1) || (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) [2020-12-22 06:56:59,707 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product50.cil.c-witness.graphml [2020-12-22 06:56:59,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:59,709 INFO L168 Benchmark]: Toolchain (without parser) took 12491.06 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 125.8 MB in the beginning and 147.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,709 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:59,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.56 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.15 ms. Allocated memory is still 151.0 MB. Free memory was 104.4 MB in the beginning and 132.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,710 INFO L168 Benchmark]: Boogie Preprocessor took 65.43 ms. Allocated memory is still 151.0 MB. Free memory was 132.8 MB in the beginning and 130.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,711 INFO L168 Benchmark]: RCFGBuilder took 1342.08 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 66.7 MB in the end (delta: 63.4 MB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,711 INFO L168 Benchmark]: TraceAbstraction took 10208.96 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 66.7 MB in the beginning and 157.0 MB in the end (delta: -90.3 MB). Peak memory consumption was 75.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,712 INFO L168 Benchmark]: Witness Printer took 165.02 ms. Allocated memory is still 225.4 MB. Free memory was 157.0 MB in the beginning and 147.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:59,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 574.56 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 122.15 ms. Allocated memory is still 151.0 MB. Free memory was 104.4 MB in the beginning and 132.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.43 ms. Allocated memory is still 151.0 MB. Free memory was 132.8 MB in the beginning and 130.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1342.08 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 66.7 MB in the end (delta: 63.4 MB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10208.96 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 66.7 MB in the beginning and 157.0 MB in the end (delta: -90.3 MB). Peak memory consumption was 75.9 MB. Max. memory is 8.0 GB. * Witness Printer took 165.02 ms. Allocated memory is still 225.4 MB. Free memory was 157.0 MB in the beginning and 147.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 545]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 545]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 545]: 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: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: (((((((\result == 0 && !(0 == systemActive)) && 2 <= \result) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) && \result == 1) && tmp == 1) - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: ((((((((!(tmp___0 == 0) && !(\result == 0)) && \result == 0) && !(0 == systemActive)) && tmp == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 0) && \result == 1) && tmp == 1 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 910]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: ((((((!(0 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && tmp == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1)) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && \result == 1) && tmp == 1) - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: (((((((((tmp___0 == 0 && tmp == 1) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && \result == 1) && tmp == 1) || (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) - InvariantResult [Line: 527]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((1 <= tmp && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) && \result == 1) && tmp == 1) || ((((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && tmp == 0) && splverifierCounter == 0) && 2 <= tmp) && \result == 1) && tmp == 1)) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == 1 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1) - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: (((((\result == 0 && !(0 == systemActive)) && tmp == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 683]: 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: 4.7s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1545 SDtfs, 2165 SDslu, 2257 SDs, 0 SdLazy, 378 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 123 NumberOfFragments, 588 HoareAnnotationTreeSize, 43 FomulaSimplifications, 2569947 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 43 FomulaSimplificationsInter, 283289 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 634 NumberOfCodeBlocks, 634 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 44442 SizeOfPredicates, 3 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 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...